Interview prep that reads your resume

Stop practicing interviews that never happened.

Voice mock interviews grounded in your resume and JD. Join the waitlist — get 1 free mock interview and five easy LLD problems during beta.

1free interview
5free LLD problems
<200msvoice loop
Join waitlist

Get 1 free mock + 5 easy LLD problems

The free mock includes its report. Advanced LLD problems remain visible but locked.

Beta access includes one voice mock interview and five easy LLD problems. No card required.
01 / Platform preview

Everything you need to crack the round

Real product surfaces — not mockups. Scroll to explore what unlocks after waitlist.

01 / Mock interviewShips first

Voice-to-voice. Like Zoom — not a chatbot.

Upload resume, paste the JD, talk. Questions anchor to your projects. The interviewer pushes back when you hand-wave.

crackround.io / mock interview REC

interviewer ▸ Your resume says you cut p99 latency by 40%. Walk me through what you actually changed.

you ▸ We were fanning out to three services serially, so the first thing I did was…

listening · press space to answer
stt 182ms · tts 240ms · exchange 07 · persona: bar raiser
02 / Hiring report

Named failure modes — not "good job, keep practicing."

Five-dimension scorecard, per-question feedback, and a 3-step plan you can finish this week.

crackround.io / hiring report
Hiring signalLean Hire
communication8.2
technical depth6.4
problem solving7.1
failure mode: “answers before structuring” · 3-step practice plan attached
03 / Simulate meBeta unlock

Watch yourself answer — before you speak.

Agent-to-agent preview grounded in your resume. Learn STAR structure and depth from an AI candidate.

crackround.io / simulate me REC

interviewer ▸ Tell me about a time you disagreed with your tech lead.

agent-you ▸ At Oracle, our lead wanted to ship the cache without invalidation. I pulled the incident data from Q2…

SituationTaskActionResult
agent grounded in your resume · watch, then take the seat
04 / LLD in C++Beta unlock

Low-level design with a real judge.

Multi-file workspace, Monaco editor, public + hidden tests — LeetCode-style, but for design patterns.

crackround.io / lld in c++
✓ public 3/3✓ hidden 5/5Accepted · 12ms
05 / System designBeta unlock

Architecture under pressure.

Scale math, failure modes, CAP tradeoffs — in a live voice round grounded in your target role.

crackround.io / system design REC

interviewer ▸ 10× traffic tomorrow. What falls over first?

p99 240msqueue depth ▲ 4.2kreplicas ×3
scale math · failure modes · CAP tradeoffs — spoken, not typed
02 / Take the seat

Your resume. Their JD. Real pressure.

Limited early-access spots · no credit card