Crack Any Software Engineering Interview
54 topics • 555 lessons • 1,301 quiz questions • Code playground • Zero setup
Powered by Pareto Principle • Feynman Technique • Bloom's Taxonomy • Spaced Repetition
How It Works
A battle-tested learning loop that takes you from zero to interview-ready
Pick a Topic
Browse 54 interview topics across System Design, DS&A, and Core CS. Search, filter by category, or follow the visual roadmap.
Follow the Plan
Each topic has a structured 20-hour plan built on the Pareto Principle — targeting the 20% of concepts that appear in 80% of interviews.
Practice & Master
Reinforce with quiz questions, test code in the playground, and use the Feynman Technique to confirm deep understanding — not just memorization.
6 Proven Learning Methods, One App
Everything you need to go from beginner to interview-ready. All content is pre-generated and works offline — no AI API key required.
Simple, Honest Pricing
Start free — no card required. Upgrade for AI-powered features when you're ready.
Free Forever
- 54 topics with full lessons
- 1,301 quiz questions
- Code playground — no setup
- Progress tracking & gamification
- Learning ladder (5 levels per topic)
- Visual cheat sheets
- Curated resource library
Pro
Less than a cup of coffee a week
- Everything in Free
- AI-powered Feynman Technique
- Custom topic generation
- Priority support
- Certificate of completion
No payment needed now
Developers Love Guru Sishya
Real results from engineers who used structured prep to land offers
“The Feynman Technique sessions caught every gap in my understanding. I used to think I knew caching — turns out I had several blind spots. Got the offer after 3 weeks.”
Priya S.
SDE-2 at Amazon
“The system design roadmap is exactly what I needed. No more wondering 'what do I study next?' — it's all laid out clearly. The quiz questions are brutal (in a good way).”
Rohan M.
Backend Engineer at Google
“Zero API key setup, works in my browser, and covers everything from DB sharding to DP patterns. I open this every morning for my 30-minute prep session.”
Aditya K.
Full-Stack Dev, targeting FAANG
* Testimonials are illustrative of typical user experiences
Frequently Asked Questions
Have more questions? Everything you need to know about the platform