It's a live, voice-to-voice interview — not a quiz. The AI gives you a problem you haven't seen, listens while you think out loud, pushes back on your trade-offs, and scores every dimension against a bar calibrated from L3 to Principal. The fastest way to judge it is to read a real scored report, or just use your two free mocks each month.

See a real scored report

Every account gets 2 free AI mock interviews a month, forever — no credit card required. Paid plans include a larger monthly allowance (the exact number is on each pricing card), and one-time credit packs top you up whenever you need extra rounds.

See pricing

Audio and transcripts from a mock are used to conduct the interview and generate your scored report, and are shared only with the trusted AI providers that power the interviewer, under our privacy policy. When you delete your account, your personal data is deleted or anonymized, and you can request deletion of your data at any time.

Read the privacy policy

Every mock is scored per dimension against the same calibrated rubric, with a seniority read and the key moments that drove the verdict. Two attempts at the same level are judged by the same bar — not by an interviewer's mood on the day.

See what the report looks like

Try before you pay: all the content is free and every account gets 2 free mocks a month. Because plans and credits unlock digital services that are accessed immediately, fees are generally non-refundable once used — except where the law requires it or something is materially defective. You can cancel any time and keep access until the end of the paid cycle.

Full terms

No scheduling and no peer roulette: a real interview round starts the moment you want one — 1am included — and a single human mock typically costs about as much as a whole month of Standard. You practice the interview itself: thinking out loud, defending trade-offs, and being scored the way a real interviewer would score you.

All three rounds of a modern SDE loop. DSA coding (LeetCode-style problems, voice plus a shared working page), low-level design (machine-coding rounds like a parking lot or Splitwise, and systems-programming rounds like a memory allocator or thread pool), and system design (voice plus a live whiteboard). Every round is calibrated to the level you pick, L3 to Principal, and ends in a scored per-dimension report. All three draw from the same monthly mock allowance.

See the tracks

Only the AI. Every course, every problem editorial, unlimited in-browser coding, and your personal lesson notes are free forever on every account, along with 2 free AI mock interviews and 5 AI tutor questions a month. Paid plans add a bigger monthly allowance of mock interviews, tutor questions, and complexity analyses — plus company-style interviewers; credit packs add extra mock rounds on top.

Every lesson has an "Ask tutor" panel — a live AI tutor that answers questions grounded in that lesson's content, and lets you save any answer to your personal notes. Free accounts get 5 questions a month to try it; Standard includes 100 and Pro 300. Your own lesson notes are free and unlimited on every plan.

On paid plans you can ask the mock interviewer to run in the style of a specific company — Amazon, Google, Meta, Stripe, Netflix, or Uber. It calibrates how the interviewer probes (pacing, follow-ups, what "good" sounds like there) based on publicly known interviewing culture. Scoring stays identical to a generic session, so your progress comparisons stay honest.

No. A plan is a one-time payment for its period — monthly or annual. When the period ends you simply drop back to the Free tier unless you choose to buy again. There are no stored-card surprise charges.

Your allowance refreshes every month on your billing-cycle day. If you need more rounds before then, one-time credit packs top you up instantly — no plan change required.

Credits are valid for 12 months from purchase and work on any round type — DSA, low-level design, or system design.

Try before you pay: the content is free and every account gets 2 free mocks a month, so you can judge the interviewer before spending anything. Because plans and credits unlock digital services that are accessed immediately, fees are generally non-refundable once used — except where the law requires it or something is materially defective. Cancelling stops the plan at the end of its paid period.

Full terms

Yes — students get 40% off. Email hello@thynclabs.com from your student address and we'll set you up. Prepping a team? Get in touch for group access.

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