Land the job. Own the interview.
Three steps, zero friction.
Select the technologies for your next interview. React, Node, PostgreSQL, Kubernetes — we've got you covered.
Targeted cards, replayed at the right interval. Like Anki for devs — concepts stick for the long run, not just the night before.
Honestly rate each answer from 0 to 3. The system identifies your gaps and revisits them at the right time.
Adapt your practice to how you feel today.
Reveal the answer, rate yourself. Spaced repetition does the rest — concepts stick without effort.
4 choices, 1 correct answer. Auto-scored instantly — perfect for a quick knowledge check.
Write your answer like in a real interview, then compare it to the model answer. AI analysis available.
Spaced repetition locks concepts into long-term memory. After 3 sessions on React 19, hooks come naturally — even at 11pm the night before your interview.
Our Chrome extension automatically detects technologies on LinkedIn, Welcome to the Jungle, and Indeed. One click, and your revision session is ready — with the right stacks already selected.
Install the extension74 stacks available — more added regularly.
backend
database
Yes, you can try via Quick Start mode (10 questions, no account needed). Free plan: 3 stacks max, 3 card sessions/month, 10 questions, 1 free MCQ session/month. Mission (€9, 7 days) unlocks everything: unlimited stacks and sessions, Simulation mode, unlimited MCQ, 1-month history and 5 AI analyses. Monthly (€19/month) adds 12 months of history and 20 AI analyses.
No, you can start right away — no sign-up needed.
Yes, each stack is precisely versioned (e.g. Java 8, Java 11, React 18, React 19). Questions are scoped to the version you select — not just the latest LTS.
2222 questions ready for your revision.
devops
frontend
language
other
testing
Revision cards: reveal the answer and self-assess (spaced repetition). MCQ: 4 choices, 1 correct, auto-scored — great for a quick test. Simulation: write your answer as in a real interview, then compare it to the model answer (paid plan).