Stop reading interview questions.Start training.
Reading the right answer feels like knowing it. Then the interview comes and you blank. DevFlash makes you answer first, compares it to the model answer, and turns every gap into a flashcard that comes back until it sticks.
Built by a senior engineer who got tired of flashcard apps that don't understand code.
Five steps that turn reading into retention
Every other platform stops at step one. That's why you forget everything a week later.
- 01
Read
A focused chapter or a real interview question, with code that actually compiles.
- 02
Answer
You write your answer before seeing the solution. No peeking, no illusion of competence.
- 03
Compare
AI reads your answer against the model one and tells you exactly what you left out.
- 04
Convert
Whatever you missed becomes a flashcard automatically. You never build a deck by hand.
- 05
Review
Spaced repetition brings each card back right before you'd forget it. Open the app, it tells you what to study today.
Everything is built around active recall
Not a bigger library. A better training loop.
Interview questions with depth
Model answer, common traps, and the follow-up question a real interviewer would ask next.
Structured learning paths
Chapters that build on each other, with prerequisites mapped. No more jumping between random blog posts.
Hands-on projects
Real specs with acceptance criteria, progressive hints and a commented solution.
Automatic flashcards
Generated from the content you're studying, scheduled by spaced repetition. Zero manual setup.
Retention quizzes
Multiple choice derived from each chapter, so you practice recall instead of recognition.
Mind maps
Every chapter mapped visually, so you see how the concepts connect before the interview.
One payment. Every technology. Forever.
Including every technology we add from here on. The roadmap below is the commitment.
Free
See if it clicks
R$ 0
- First questions of every technology
- First chapters of every path
- 5 AI interactions per month
- No flashcards or spaced repetition
Lifetime
Most popularPay once, keep it forever
R$ 67
- Every question, chapter and project
- All technologies, including future ones
- Flashcards with spaced repetition
- Retention quizzes and mind maps
- 300 AI interactions per month
- No subscription, no renewal
Monthly
If you prefer not to pay upfront
R$ 19/month
- Everything in Lifetime
- 1000 AI interactions per month
- Cancel anytime
Payments are processed in Brazilian Reais. International checkout is on the roadmap — join the waitlist and we'll tell you the moment it's live.
What's live and what's coming
Selling lifetime access only works if we keep shipping. Here's the plan, in public.
- ReactIn progress
- TypeScriptPlanned
- Node.jsPlanned
- SQL & PostgresPlanned
- System DesignPlanned
- Next.jsPlanned
Questions you're probably asking
Be there when React goes live
One email when the first path ships. Nothing else.