Best AI Interview Prep Tools 2026
Rankings based on the CORE™ Customer Market Research System.
Reviewed by the Flickthru team · Last updated · How we evaluate
Market Overview
AI interview prep tools run realistic mock interviews by voice, video or text, ask follow-up questions and give feedback on what you said and how you said it. They range from low-cost speaking coaches and structured interview courses to specialist platforms for coding, system design and data roles, and their prices, practice limits and data handling vary widely. We reviewed 21 platforms to arrive at the Top 10 ranked below.
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Quick Reference
- 1YoodliFree plan · from $8/mo79.5
- 2Aced (formerly Exponent)Free plan · from $12/mo78.0
- 3Hello InterviewFree to start · from $95/yr74.5
- 4Big InterviewFrom $39 · lifetime $29973.0
- 5Final Round AIFree plan · from $25/mo71.5
- 6OphyAIFree plan · from $23/mo71.5
- 7Interviewing.ioFree AI · humans from $17967.5
- 8Interview SidekickFree plan · from $80/mo67.5
- 9Interview QueryFree account · from $199/yr67.0
- 10HackerRank Mock Interviews2 free mocks · paid credits66.5
Flickthru Score out of 100. Tap a tool to jump to its full review.
Evaluation Methodology
Practice & feedback quality
How realistic the mock interviews feel, including follow-up questions and tailoring to the job, and how specific and useful the feedback is on content and delivery.
Role & format coverage
Which interview types, roles and levels it covers, from behavioral to coding, system design and case rounds, plus company-specific practice.
Value
What the paid plans deliver for their price, including session limits, credits, lifetime options and billing terms.
Privacy & reliability
How the tool handles your recordings and data, and whether customers have faced service, billing or plan problems.
Expert & User Ratings
How highly expert reviewers and verified users rate it.
Yoodli
AI speaking and mock interview coach
Best For: Low-cost spoken interview practice focused on delivery
Price: Free plan (5 roleplays total); paid from $8/mo (billed annually)
Yoodli is an AI communication coach that runs spoken roleplays, including mock interviews where an AI interviewer asks questions and dynamic follow-ups. It is known mainly for detailed feedback on delivery, such as pace, filler words, clarity and eye contact.
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Detailed Analysis
Key features
- AI interviewer roleplays set up for the role and company you enter, with dynamic follow-up questions based on your answers
- Choice of interviewer demeanor and questions picked from an interview bank or written by you
- Delivery feedback on pace, filler words, pauses, clarity and eye contact, plus body-language notes when the camera is on
- Feedback on uploaded recordings of your own practice or talks on paid plans
- Company-specific interview resources and repeatable practice after each analysis
Pricing
- Starter — $0 — 5 roleplays in total (any session over 30 seconds counts as one)
- Pro — $8/mo billed annually ($96/yr) — up to 10 roleplays per week, live AI roleplays, feedback on uploaded recordings
- Advanced — $20/mo billed annually ($240/yr) — unlimited roleplays, your data excluded from AI training, reimbursement letter for learning budgets
- Team and Enterprise — custom quote — unlimited custom roleplays, dashboards, SSO and LMS/HRIS integrations
Job seekers who want to rehearse answers out loud and tighten their speaking delivery at a low annual cost.
Candidates preparing for coding, system design or other technical rounds that need answers checked for correctness.
How it scored
- Practice & feedback quality: 80/100. Spoken roleplays with dynamic follow-ups and detailed delivery feedback stand out, though reviewers say content coaching is lighter.
- Role & format coverage: 70/100. You can set any role and company and use panel-style personas, but it does not cover technical or coding interviews.
- Value: 90/100. Pro at $8/mo billed annually is one of the cheapest paid options here, and Advanced adds unlimited practice for $20/mo.
- Privacy & reliability: 80/100. Practice data can be used to improve its AI by default on lower plans, with an opt-out in settings and exclusion on Advanced.
- Expert & User Ratings: 80/100. Reviewers often recommend it for delivery practice, while user ratings are too few to weigh heavily.
Our verdict
Yoodli ranks first: its spoken roleplays ask natural follow-up questions and give detailed feedback on pace, filler words and clarity, and paid plans start at $8/mo billed annually. Reviewers say its coaching leans toward how you speak rather than what you say, and it does not cover coding or technical rounds.
- Spoken roleplays with follow-up questions feel close to a real conversation
- Detailed delivery metrics such as pace, filler words and eye contact
- Low annual price for the Pro plan
- Feedback focuses more on delivery than on answer content, according to reviewers
- Not suited to technical or coding interview practice
- Free plan allows only 5 roleplays in total, and paid plans are shown as annual billing
- The free Starter plan is a one-time allowance of 5 roleplays, and Pro is capped at 10 roleplays per week with no rollover.
- Yoodli says it does not offer refunds on cancellation; canceling stops auto-renewal and access continues to the end of the billing period.
- Session data may be used to improve Yoodli’s AI on Starter and Pro; you can opt out in profile settings, and Advanced excludes your data from AI training.
Aced (formerly Exponent)
Tech interview prep platform with AI and peer mock interviews
Best For: Tech, product and data candidates who want courses, peer mocks and AI practice in one place
Price: Free plan; paid from $12/mo (billed annually)
Exponent, which renamed itself Aced in August 2026 and absorbed the Pramp peer-practice service, is an interview prep platform for tech, product, data and investment banking roles. It is known for its course library, question bank and free peer mock interviews, and now adds an on-demand AI interviewer that gives rubric-based feedback after audio practice sessions.
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Detailed Analysis
Key features
- AI interviewer for on-demand audio practice on real questions, with feedback after the session based on interview rubrics for communication, problem solving and collaboration
- Notes and transcripts from AI sessions saved for later review
- Peer mock interviews matched with other candidates preparing for the same interviews, with rubric-based notes and AI feedback afterward
- Thousands of real interview questions, including company-specific questions, plus video answers
- Courses for PM, software engineering, system design, data science, ML, AI engineering, engineering management, TPM, design and investment banking
Pricing
- Basic — $0 — limited questions and up to 5 peer mock interviews a month
- Pro — $79/mo, or $12/mo billed annually (about $144/yr) — unlimited peer mocks, full question bank, courses and community
- Expert — $99/mo, or $20/mo billed annually — adds AI mock interviews
- Human coaching — from about $200 per hour, sold separately; a $1,499 program bundles an assessment, 5 mock sessions and a year of access
Candidates for product, engineering, data or finance roles who want structured courses plus free peer practice and some AI rehearsal.
People who want a voice AI interviewer that tailors questions to their resume or job description, or who prep for non-tech roles.
How it scored
- Practice & feedback quality: 70/100. Its AI interviewer runs audio practice on real questions with rubric-based feedback and transcripts, though it is less detailed than dedicated AI mock interview tools.
- Role & format coverage: 90/100. It covers a wide range of tech, product, data, AI and investment banking interview types, with company-specific questions and structured courses.
- Value: 80/100. Annual billing brings the full library to $12/mo and AI practice to $20/mo, though monthly plans cost far more.
- Privacy & reliability: 80/100. Its privacy policy does not say whether AI practice data is used for training or which AI providers process it.
- Expert & User Ratings: 80/100. Reviewers often recommend it for free peer practice, and its small number of user ratings are positive.
Our verdict
Aced, formerly Exponent, ranks second: it covers more interview types than almost any tool here, from product and system design to data and investment banking, and pairs free peer mocks with an AI interviewer that scores answers against rubrics. Its AI practice sits on the higher Expert tier and is less detailed than the tools built around AI mock interviews.
- Wide range of tech, product, data and finance interview tracks
- Peer mock interviews included on the free plan
- Low annual price for the full course library
- AI mock interviews require the higher Expert tier
- Reviewers say peer partner quality and scheduling vary
- Annual plans are billed upfront even though prices are shown per month
- Exponent renamed itself Aced in August 2026, and tryexponent.com now redirects to aced.io.
- Memberships auto-renew; subscriptions can be refunded within 5 days of purchase.
- Free accounts are limited to 5 peer mock interviews a month.
Hello Interview
AI system design and coding interview practice
Best For: Software engineers preparing for system design interviews
Price: Free to start; Premium from $95/yr (limited-time price)
Hello Interview is an interview prep platform for software engineers, known for its system design guides and step-by-step Guided Practice. Its Live Practice mode is a voice AI mock interview that reads your whiteboard, asks follow-up questions and gives a hire or no-hire call for your target level.
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Detailed Analysis
Key features
- Live Practice voice AI mock interviews of 35 minutes that read your whiteboard and ask follow-up questions, with a choice of interviewer and target level
- Feedback reports with a hire or no-hire call, ratings for problem navigation, solution design, technical excellence and communication, and specific fixes
- Replay of the board, transcript and audio in sync, with coaching points quoting what you said
- Guided Practice with step-by-step rubric feedback across 34 system design, 8 low-level design and 12 AI-enabled coding problems, plus behavioral questions
- Candidate-reported question bank, courses and an AI tutor that answers questions as you study
Pricing
- Premium 1 Month — $47 (listed at $59) — all courses and Guided Practice, 1 Live Practice interview
- Premium 1 Year — $95 (listed at $119) — same content, 2 Live Practice interviews
- Premium Lifetime — $319 one-time (listed at $399) — never auto-renews, 4 Live Practice interviews
- Extra Live Practice interviews — $10 each, or packs of 3 for $26 and 6 for $46
Software engineers who want realistic spoken system design rehearsal with level-specific feedback at a low cost.
Candidates outside software engineering, or anyone who wants human mock interviews, which it no longer offers.
How it scored
- Practice & feedback quality: 80/100. Its voice AI interviewer reads your whiteboard, asks follow-ups and gives a hire decision with specific fixes, and users credit its guided practice with helping them pass rounds.
- Role & format coverage: 60/100. It covers system design, low-level design, AI-enabled coding and behavioral interviews by level, but only for software engineering roles.
- Value: 90/100. Premium starts at $95 a year at the current discount, with extra AI interviews from $10 each.
- Privacy & reliability: 80/100. It names the AI services that process practice sessions, says it does not keep voice recordings for voice features, and offers in-app account deletion.
- Expert & User Ratings: 60/100. Its few user ratings are positive, especially for system design practice, though independent reviews are limited.
Our verdict
Hello Interview ranks third: its voice AI interviewer reads your whiteboard, asks follow-ups and returns a hire decision for your target level, and Premium starts at $95 a year. It covers software engineering roles only, Premium includes just a few live AI sessions, and independent ratings are still limited.
- Voice AI interviewer reacts to your whiteboard and asks follow-ups
- Detailed reports with a hire decision for your target level
- Low-cost Premium plans and extra sessions from $10
- Covers software engineering roles only
- Premium includes only 1 to 4 Live Practice sessions
- Human mock interviews and mentorship were discontinued in 2026
- Live Practice credits are limited by plan; extra interviews cost $10 each or less in packs, and credit purchases carry a money-back policy.
- The Lifetime plan is a one-time payment that does not auto-renew.
- Current prices are a limited-time discount from the listed $59, $119 and $399.
- Price change: Hello Interview ended its human mock interview and mentorship programs on May 31, 2026, and refunded unexpired credits.
Big Interview
AI mock interview and interview training course
Best For: Students and career changers who want a structured course plus recorded practice
Price: From $39 for 30 days; $299 one-time lifetime plan
Big Interview combines a video-lesson interview course with recorded mock interviews and AI feedback on delivery and answers. It is widely offered free through university career centers and workforce programs, and the company says over 2 million people have used it.
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Detailed Analysis
Key features
- VideoAI feedback on recorded answers covering pace, filler words, vocabulary, clarity, confidence, volume and lighting
- PracticeAI conversational audio practice that builds questions and follow-ups from a job description and optional resume
- Thousands of practice questions filterable by industry, major, experience level, government, veterans and graduate-school admissions
- About 170 video lessons with step-by-step learning paths and a Fast-Track module for short deadlines
- Big Resume AI resume feedback and builder, plus salary negotiation lessons
Pricing
- Interview BootCamp — $39 for 30 days — interview practice, common-question training and delivery coaching
- Interview Accelerator — $99 for 3 months — practice interviews plus AI resume feedback and LinkedIn profile help
- Interview Pro — $299 one-time — lifetime access including new courses and features
- Schools and organizations — from $9.75 per user per month or capped annual licences — admin tools, assignments and completion tracking
Students, new graduates and career changers who want lessons and guided practice, especially if their school already provides free access.
Candidates preparing for coding or system design rounds, since reviewers say it cannot check technical answers.
How it scored
- Practice & feedback quality: 70/100. Recorded practice with detailed delivery metrics and job-description-based follow-ups is useful, though reviewers find content feedback generic.
- Role & format coverage: 80/100. A large question library spanning industries, admissions and government roles plus a full lesson curriculum gives wide coverage outside technical interviews.
- Value: 70/100. Plans run from $39 for 30 days to a $299 lifetime option with a 30-day money-back period, more than the cheapest apps but with a full course included.
- Privacy & reliability: 80/100. It treats student records under education privacy rules for schools and deletes recordings when you delete your account.
- Expert & User Ratings: 70/100. Reviewers often recommend it for students and career changers, while user ratings are scarce and some reviewers call its feedback generic.
Our verdict
Big Interview ranks fourth: it pairs a structured video course with recorded AI practice that can be tailored to a job description, and many schools give it to students for free. Reviewers find its feedback more generic on answer content, and its individual plans cost more than app-based rivals.
- Structured curriculum with about 170 video lessons alongside practice
- Broad question library across industries, admissions and government roles
- 30-day money-back period and a one-time lifetime option
- Reviewers describe some AI feedback as generic and delivery-focused
- Cannot evaluate coding, SQL or system design answers
- Individual plans cost more than low-cost AI practice apps
- Many universities and workforce programs provide free access, so check with your school or career center before buying.
- BootCamp and Accelerator are subscriptions that renew; renewals can be canceled from the account page, and refunds within 30 days of purchase are requested by email.
- AI feedback needs recordings of at least 30 seconds.
Final Round AI
AI mock interview and interview copilot suite
Best For: Candidates who want spoken mock interviews tailored to a specific role, company and job description
Price: Free plan (no practice sessions); Pro from $25/mo (billed annually, about $300 upfront)
Final Round AI is a desktop app for macOS and Windows that combines spoken AI practice interviews with a live interview assistant. Its Practice Interview feature builds each session around a saved Goal (role, company, job description, resume and materials) and follows up with an automatic debrief and re-drill targets.
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Detailed Analysis
Key features
- Spoken practice interviews with an AI interviewer that asks follow-up questions as you answer
- Sessions tailored to a saved Goal with your target role, company, job description, resume and materials
- Eight practice scenarios: General, Coding, System Design, Behavioral, Product Case, Data/ML, Salary Negotiation and Recruiter Screen
- Automatic debrief that summarizes answers, flags weak moments such as missing structure or thin examples, and sets re-drill targets
- Re-drill mode that replays weak spots from your last debrief, with each run tracked against the same Goal
Pricing
- Free — $0 — unlimited Goals, resume and materials upload, job description parsing and prep checklist; practice sessions require a paid plan
- Pro (annual) — $25/mo billed annually (about $300 upfront) — practice interviews, automatic debriefs, unlimited live assistant sessions and screen help
- Pro (monthly) — reported at about $150/mo; the vendor page shows only the $25/mo rate with a note about savings on longer plans, so check the price at checkout
Job seekers preparing for a specific role who want realistic spoken practice across behavioral, technical and product formats with targeted follow-up drills.
Buyers on a tight budget who want to pay month to month, or who prefer to try practice sessions before paying, since there is no free trial.
How it scored
- Practice & feedback quality: 80/100. Reviewers and users describe its spoken practice sessions as realistic, with relevant follow-up questions and debriefs that flag weak answers, though some users found the suggested answers generic.
- Role & format coverage: 90/100. It covers eight practice formats including coding, system design, product case, data/ML and salary negotiation, all tailored to your target job and resume.
- Value: 50/100. The $25/mo rate requires paying for a year upfront, and users report a much higher monthly price and a short, usage-limited refund window.
- Privacy & reliability: 50/100. Its policy allows transcripts and resumes to be used for AI training by default without an in-product opt-out, and users often report billing and refund problems.
- Expert & User Ratings: 60/100. Reviewers often include it in interview-prep lists for its depth of simulation, but users give it mixed ratings, citing billing and support issues.
Our verdict
Final Round AI ranks fifth: its spoken practice sessions are tailored to your role, company and resume and cover more formats than most tools here, including coding, product case and salary negotiation. Upfront annual billing, a short refund window, default use of transcripts for AI training and frequent user complaints about billing hold it back.
- Practice sessions are built around your target role, company, job description and resume
- Covers coding, system design, product case, data/ML and salary negotiation as well as behavioral rounds
- Debriefs flag weak answers and turn them into re-drill targets for the next session
- The headline $25/mo rate is billed annually upfront, and monthly billing is reported to cost far more
- Users frequently report refund denials, unwanted renewals and support that is mostly automated
- No free trial of practice sessions, and the app requires macOS or Windows
- The refund policy covers requests made within 72 hours of a charge, only once per customer, and is void after two sessions of more than 30 minutes; cancelling does not itself request a refund.
- By default, interview transcripts, resumes and feedback may be used to train its AI models; there is no in-product opt-out, and requests go by email.
- Its live interview assistant runs during real interviews; some employers don’t allow AI help in interviews, so check before using it.
OphyAI
AI interview practice and job search suite
Best For: Job seekers who want voice or text mock interviews plus job search tools on web and mobile
Price: Free plan; paid from $23/mo (billed annually, $278/yr) or $29/mo monthly
OphyAI is a job search suite that combines AI interview practice with a live interview copilot, resume builder and application tracker. Its Interview Practice runs guided mock interviews by voice or text, generating role-specific behavioral and technical questions, and works on web, iOS and Android.
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Detailed Analysis
Key features
- Guided AI mock interviews by voice or text, with feedback after each session
- Role-specific questions covering behavioral, coding, system design and problem-solving rounds
- Behavioral practice built around the STAR method
- Question generation based on your resume
- Practice available in the web app and in iPhone and Android apps
Pricing
- Free — $0 — one practice session capped at 15 minutes (from a one-time 5-credit grant), application tracker and limited resume tools
- Pro — $29/mo, or $278/yr billed annually — 300 credits a month shared across tools; first practice session free, then 10 credits per text or 15 per voice session
- Premium — $59/mo, or $566/yr billed annually — 500 credits a month, everything in Pro plus coding interview sessions
Candidates who want affordable voice practice for behavioral and technical rounds alongside resume and job tracking tools, including on a phone.
Heavy users who want unlimited practice, since every session draws from a credit balance shared with the live copilot and other tools.
How it scored
- Practice & feedback quality: 70/100. Reviewers credit its resume-based questions and voice or text practice with feedback, though they found its system design simulations less polished.
- Role & format coverage: 80/100. It covers behavioral, coding, system design and case interviews across many fields, with practice on web and mobile apps.
- Value: 70/100. Reviewers call it good value, though credit-based practice is less straightforward than unlimited plans and credits are shared with other tools.
- Privacy & reliability: 80/100. It names the AI providers that process your content and says they do not train on it, and you can delete your account and data from your profile.
- Expert & User Ratings: 60/100. Reviewers include it as a good-value option, but it has very few user ratings so far.
Our verdict
OphyAI ranks sixth: it offers voice and text mock interviews for behavioral, coding, system design and case rounds on web and mobile, and it names AI providers that do not train on your content. Its shared credit system is less straightforward than unlimited plans, and it has few user ratings so far.
- Covers behavioral, coding, system design and case formats in one tool
- Voice and text practice on web, iPhone and Android
- Names its AI providers and says they do not train on your content
- Practice sessions draw from a credit balance shared with the copilot and other tools
- Reviewers say its system design practice is less polished than its coding and behavioral modes
- Newer tool with few user ratings
- Credits are shared: each voice practice session costs 15 credits after the first, so Pro’s 300 monthly credits cover about 20 voice sessions if nothing else is used.
- Quarterly and yearly plans have a 72-hour money-back period for first purchases only; monthly plans are refunded only for verified technical failures, and passes and credit packs are non-refundable.
- Its live interview assistant runs during real interviews; some employers don’t allow AI help in interviews, so check before using it.
Interviewing.io
Anonymous mock interview platform for software engineers
Best For: Software engineers preparing for FAANG-style coding and system design rounds
Price: Free AI interviewer; human mock interviews from $179 per session
Interviewing.io is a mock interview platform for software engineers, known for anonymous practice sessions with senior engineers from large tech companies. It also offers a free AI interviewer that simulates FAANG-style coding and system design interviews and gives feedback at the end, using problems from the book Beyond Cracking the Coding Interview.
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Detailed Analysis
Key features
- Free AI interviewer that simulates FAANG-style coding and system design interviews and gives detailed feedback at the end
- Over 200 practice problems from Beyond Cracking the Coding Interview for self-paced AI practice
- Anonymous human mock interviews in a shared coding environment with audio and chat, no video
- Human sessions for algorithms, system design, machine learning, front-end, engineering management and behavioral interviews, including staff-level practice
- Multi-session coaching with Amazon, Google or Meta interviewers, with a lesson plan tailored to the target role
Pricing
- AI interviewer — $0 — FAANG-style coding and system design practice with feedback
- Human mock interview — from $179 per session — price varies by subject and by requesting an interviewer from a specific company
- Dedicated coaching — packages of 3, 5 or 10 sessions — prices shown only after login
Software engineers who want free AI coding and system design rehearsal before paying for a few realistic human mock interviews.
Candidates for non-engineering roles, or anyone who wants spoken behavioral practice with delivery feedback from AI.
How it scored
- Practice & feedback quality: 70/100. Its free AI interviewer simulates FAANG-style coding and system design rounds with end-of-session feedback, though few details on its feedback are published.
- Role & format coverage: 60/100. It concentrates on software engineering interviews, with human sessions extending to ML, front-end, management and behavioral rounds.
- Value: 60/100. The AI interviewer is free, but paid human sessions start at $179 each and package prices are hidden until login.
- Privacy & reliability: 80/100. Its public pages say little about how AI practice sessions are stored or processed.
- Expert & User Ratings: 70/100. Reviewers recommend it for software engineers’ dress rehearsals before onsites, while user ratings are sparse.
Our verdict
Interviewing.io ranks seventh: its free AI interviewer gives software engineers FAANG-style coding and system design practice, backed by paid anonymous sessions with senior engineers. Its AI practice is narrow and lightly documented, and human sessions start at $179 each.
- AI interviewer is free
- Practice problems come from a well-known interview prep book
- Paid human sessions are run by senior engineers, which reviewers value for calibrated feedback
- Focused almost entirely on software engineering roles
- Human sessions start at $179 each
- Little public detail on how the AI interviewer’s feedback works
- Many package and company-specific prices appear only after you log in.
- The company says it gives a full refund if you’re unhappy with a human interview.
- Human sessions use audio and chat only, with no video.
Interview Sidekick
AI mock interview coach and question bank
Best For: Job seekers who want voice mock interviews plus a large company-specific question bank
Price: Free plan; paid Ultimate plan listed at $80/mo with a discount code (regional pricing varies)
Interview Sidekick is an AI interview tool that pairs voice-based mock interviews and a large question bank with a live interview assistant. Its practice side tailors questions to your job description and resume and scores answers for clarity, structure and impact.
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Detailed Analysis
Key features
- Voice-based mock interviews with an AI interviewer, plus a record-and-review option
- Feedback scores for clarity, structure and impact, with notes on delivery such as filler words
- Questions tailored to an uploaded job description and resume, with role and seniority settings and STAR/SOAR/CAR answer formatting
- Question bank of more than 16,000 questions from over 1,200 companies, each with a suggested answer, sorted by topic and difficulty
- Full practice transcripts and performance analytics by category
Pricing
- Basic — $0 — limited prep sessions, limited question bank access and basic prep insights; no credit card required
- Ultimate (monthly) — $80/mo with the vendor’s discount code (listed from $160/mo) — unlimited prep sessions, full question bank with suggested answers, transcripts, AI feedback and the live assistant
- Ultimate (quarterly) — offered; price not shown on the vendor page, and discounted plans vary by region
Candidates preparing for behavioral, technical or case rounds at named companies who want unlimited voice practice and a deep question bank.
Buyers who want clear, stable pricing or detailed controls over how their practice data is stored and deleted.
How it scored
- Practice & feedback quality: 70/100. Reviewers note its voice mock interviews adapt with follow-up questions, and it scores answers on clarity, structure and delivery, though independent testing is limited.
- Role & format coverage: 80/100. It covers behavioral, technical, coding, system design and case interviews plus visa, certification and admissions formats, with company-tagged questions, though reviewers say the library leans toward behavioral and product roles.
- Value: 50/100. The paid plan is listed at $80/mo with a discount code, which is high for practice tools, though it includes unlimited sessions.
- Privacy & reliability: 70/100. Its privacy policy does not say whether practice data is used for AI training, gives no retention periods and limits deletion requests to what the law requires.
- Expert & User Ratings: 60/100. Reviewers include it among interview-prep options for its voice practice, and the few user ratings available are mostly positive.
Our verdict
Interview Sidekick ranks eighth: its voice mock interviews adapt to your job description and draw on a large company-tagged question bank with scored feedback. Its paid plan costs more than most rivals here, its pricing is hard to pin down, and its data-deletion terms are restrictive.
- Large question bank covering more than 1,200 companies, each question with a suggested answer
- Scored feedback on clarity, structure and impact, plus delivery notes such as filler words
- Covers unusual formats such as visa, certification, thesis-defense and admissions interviews
- Listed price depends on a discount code and region, and the pricing page itself shows no amounts
- Privacy policy gives no retention periods and says data may not be deleted on request unless the law requires it
- Reviewers say its question library leans toward behavioral and product roles
- Subscriptions renew automatically at the end of each billing cycle; cancel in account settings before the period ends, and access continues until then.
- The free plan includes limited prep sessions and question bank access, and works in Chrome, on the desktop app for macOS and Windows, or in a phone browser.
- Its live interview assistant runs during real interviews; some employers don’t allow AI help in interviews, so check before using it.
Interview Query
Data science interview prep platform with AI interviewer
Best For: Data science, analytics and ML candidates who want SQL, Python and case practice
Price: Free account; paid from $79/mo, or $299 lifetime
Interview Query is an interview prep platform for data science, analytics, ML and product roles, known for its question bank, take-home challenges and company interview guides. It adds an AI interviewer that gives real-time feedback during problem-solving sessions, alongside peer mock interviews and paid coaching.
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Detailed Analysis
Key features
- AI interviewer that gives real-time feedback during problem-solving sessions, available in Chrome
- Over 1,000 interview questions across SQL, Python, statistics, ML and product sense, with an in-browser coding environment
- Company guides covering hiring processes, salaries and interview questions
- Learning paths with over 350 lessons, plus over 50 take-home challenges with solutions
- Peer mock interviews over live video and access to coaching with industry experts
Pricing
- Free — $0 — free account with limited access
- Monthly — $79/mo — full access, cancel anytime
- Yearly — $199 — full access (shown on the vendor FAQ)
- Lifetime — $299 one-time — lifetime access with no recurring fees; coaching priced separately
Candidates for data science, analytics and ML roles who want deep question practice and company-specific guides.
People who want a spoken, realistic AI mock interview with delivery feedback, or who prep for algorithm-heavy software roles.
How it scored
- Practice & feedback quality: 60/100. Its AI interviewer gives real-time feedback while you solve problems, but its format and feedback depth are not described in detail.
- Role & format coverage: 70/100. It covers SQL, Python, statistics, ML and product interviews with company guides and learning paths, but little outside data roles.
- Value: 80/100. A $299 lifetime option and a lower yearly price make full access affordable compared with the $79 monthly plan.
- Privacy & reliability: 80/100. Its privacy policy does not address AI practice data or name AI providers, and auto-renewal refunds are decided case by case.
- Expert & User Ratings: 60/100. Reviewers view it as useful for data science roles but narrow, and user ratings are hard to find.
Our verdict
Interview Query ranks ninth: it is a deep question bank and course library for data science, SQL and ML roles that now includes an AI interviewer with real-time feedback. Its AI practice is lightly documented and of little use outside data roles.
- Deep coverage of SQL, statistics, ML and product questions
- Company guides and take-home challenges
- Lifetime option avoids recurring fees
- Little public detail on how the AI interviewer works
- Narrow fit for roles outside data and analytics
- AI interviewer runs only in Chrome
- There is no free trial; you can sign up as a free user instead.
- Plans auto-renew with an email notice beforehand; refunds on auto-renewals are handled case by case.
- The AI interviewer currently works only in the Chrome browser.
HackerRank Mock Interviews
AI technical mock interviews and coding practice
Best For: Developers preparing for coding screens on HackerRank-style tests
Price: Free practice and 2 free AI mock interviews; extra mocks paid (price not published)
HackerRank is a coding assessment platform used by employers, and its free community side offers interview prep for developers. Its AI-powered mock interviews run timed coding, system design, technical screen and behavioral sessions by voice or chat, with follow-up questions and a feedback report.
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Detailed Analysis
Key features
- AI mock interviews by voice or chat for technical screen, coding, system design, behavioral and AI fluency
- 60-minute coding interviews where the AI asks clarifying and follow-up questions about your solution in a full IDE
- Feedback reports on code quality, problem solving, technical communication and language proficiency, with 15 minutes afterward to ask for tips
- Role tracks for software engineer, front-end developer and back-end developer, with live preview for web tasks
- Software Engineer Prep Kit with practice challenges, an AI tutor, timed mock tests and a role certification
Pricing
- Free — $0 — coding practice, one Software Engineer coding mock and one Technical Screen mock
- Mock interview credits — price shown at checkout — credits do not expire
- Prep Kit subscription — monthly and quarterly plans — prices not published
Developers who want to rehearse timed coding rounds in the same kind of environment many employers use for screening.
Non-technical candidates, or anyone who wants transparent pricing and delivery feedback on spoken answers.
How it scored
- Practice & feedback quality: 70/100. Its AI interviewer runs timed coding rounds with follow-ups and reports on code quality and communication, though users say it doesn’t always reflect real assessments.
- Role & format coverage: 70/100. It covers coding, system design, technical screen, behavioral and AI fluency for software, front-end and back-end roles.
- Value: 60/100. Two free mocks help, but prices for extra mocks and Prep Kit plans are not published.
- Privacy & reliability: 80/100. It says it does not train its AI models on your personal data and does not let its AI providers train on it.
- Expert & User Ratings: 50/100. Reviewers value its realistic coding environment, but users rate the platform poorly, mostly over its employer assessments.
Our verdict
HackerRank ranks tenth: its free AI mock interviews put developers in a realistic timed IDE with follow-up questions and a report on code and communication. Users say paid practice does not always match real assessments, user ratings are low and prices for extra mocks are not published.
- Two AI mock interviews are free
- Realistic IDE with follow-up questions from the AI interviewer
- Mock interview credits do not expire
- Prices for extra mocks and Prep Kits are not published
- Users report the practice doesn’t always match real assessments
- Limited to technical roles
- Free accounts get one coding mock and one technical screen mock, each usable once.
- Refunds for mock credits are reviewed case by case through support.
- A microphone is needed only if you want to answer by voice.
Comparison Table
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How to Choose
Match the tool to your interview type
Behavioral interviews call for spoken practice with feedback on structure and delivery, while coding, system design and data interviews need tools that can judge technical answers. Most tools are strong at one or two formats, so start with the round you are most worried about.
Practice out loud, with follow-up questions
Real interviews are spoken and interviewers dig into your answers. Tools that let you answer by voice or video and then ask follow-up questions prepare you better than ones that only show a list of questions or accept typed answers.
Look for feedback you can act on
Good feedback points to specific gaps, such as a missing result in a STAR answer, a weak trade-off in a design or too many filler words, and suggests how to fix them. Generic praise or a single score is much less useful.
Tailor practice to the job you want
Several tools build questions from a job description, your resume or a target company. This helps you rehearse the stories and skills that a specific employer is likely to ask about.
Check the real cost and billing terms
Some low monthly prices are only available when you pay for a year upfront, and refund windows can be short or limited by how much you have used. Check session or credit limits, renewal terms and whether your school or employer already offers a tool for free.
Know the difference between practice and live help
Some tools also sell an assistant that suggests answers during a real interview. This page judges tools on preparation only, and many employers don’t allow AI help during interviews, so check the rules before using one.
Frequently Asked Questions
What do AI interview prep tools do?
They run mock interviews where an AI interviewer asks questions, often by voice or video, follows up on your answers and then gives feedback on content and delivery. Many also include question banks, sample answers, lessons and practice tailored to a job description or company.
Are there free AI interview practice tools?
Yes. Google’s Interview Warmup is free, Huru says its app is now free for job seekers, and several ranked tools have free plans or free sessions, including Yoodli, Aced, Hello Interview and HackerRank. Free plans usually limit the number of sessions or feedback reports.
Which tool is best for coding and system design interviews?
Hello Interview, Interviewing.io and HackerRank focus on software engineering, and Aced covers system design alongside product, data and finance roles. For behavioral and general interviews, Yoodli and Big Interview are more suitable.
What is the difference between an interview practice tool and an interview copilot?
A practice tool helps you rehearse before the interview. A copilot listens during a real interview and suggests answers, and many employers don’t allow that. Several tools on this page offer both, but we rank them on their practice features only.
Do these tools keep my interview recordings?
It varies. Some keep recordings and transcripts until you delete your account, some use practice data to improve their AI unless you opt out or choose a higher plan, and a few say they do not keep voice recordings. Check each tool’s privacy settings before you record.
How We Evaluated
Every Flickthru ranking follows the same five-step process, applied the same way to every product on the page.
- Market scan: We gathered the 21 platforms recommended across current expert reviews, buyer guides and verified-user ratings, then shortlisted the 10 that best fit this category and offer their own built-in AI.
- Evidence gathering: For each shortlisted product we collected features, plans and current pricing from the vendor, alongside the strengths and weaknesses reported in recent expert reviews.
- Risk checks: We checked every product for recent price changes and service reliability. Anything relevant is summarised in the product’s Detailed Analysis and reflected in its score.
- Scoring: Each product is scored against the five criteria in our Evaluation Methodology using the same rules for every product, and the Flickthru Score out of 100 combines them. Practice & feedback quality, the main job these tools do, counts most. Value is judged on what the paid plans deliver for their price. Each product’s Detailed Analysis explains how it scored on every criterion. Each criterion is scored from 1 to 10, where 8 means good, 9 very good and 10 excellent.
- Editorial independence: Rankings are decided by Flickthru’s editorial process alone. Placement cannot be bought.
This ranking was last updated in October 2026.