AlgoChronicle: Learn DSA

Daily DSA problems & reviews

Only for iPhone

Free

iPhone

A new problem every day, a 10-minute lesson the night before, and reviews after 1 day, 1 week and 1 month so it sticks. Learn data structures and algorithms one stage at a time — free, beginner-friendly, and built around a habit you can keep. EVERY DAY, ONE PROBLEM Your problem of the day waits until you solve it, then the next one unlocks. 159 hand-picked problems across 13 levels: arrays and strings, two pointers, sliding window, stacks, binary search, linked lists, trees, heaps, backtracking, graphs, dynamic programming, greedy and bit manipulation. LEARN THE TOPIC THE NIGHT BEFORE Each evening you get a 10-minute lesson on tomorrow's topic: why the pattern matters, what to know, a tip, and a short video. SEE THE ALGORITHM RUN Step through every solution on a real input with an animated, step-by-step visualizer — pointers moving, maps filling, stacks growing. A STEP-BY-STEP WAY TO SOLVE Every problem page walks you through it: learn the basics, try it on paper, code it yourself, watch the walkthrough only if you're stuck, visualize the approach, then get it accepted. REVIEWS THAT MAKE IT STICK Solved problems come back for a quick re-solve after 1 day, 1 week and 1 month, with notifications when they're due. KNOW WHO ASKS IT Company tags from real interview reports on every problem. OPTIMAL SOLUTIONS, WHEN YOU'RE READY Tested reference solutions in Python, Java and C++, with the key idea and time/space complexity, hidden until you've tried. SYNC ACROSS DEVICES Use it without an account, or sign in with Apple or email to keep your progress on every device and get daily reminders. Free. No ads. No tracking.

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Information

Seller
Srujan Chidarla
Size
4.9 MB
Category
Education
Compatibility
Requires iOS 16.0 or later.
  • iPhone
    Requires iOS 16.0 or later.
Languages
English
Age Rating
13+
Copyright
© 2026 Srujan Chidarla
  • Developer Website
  • Privacy Policy