Instello is the Instagram-style feed that teaches you data structures & algorithms, one bite-sized swipe at a time. Same thumb. Wildly better outcome.
Free · no app store · add it to your home screen in two taps.
You already scroll for hours, and the feed already won. So we built a feed worth losing yourself in: one that leaves you sharper, not emptier. Every swipe is a rep. Every story is a recall. Five minutes here beats an hour of doomscrolling.
Every concept gets a clean, animated diagram that moves as the idea unfolds: pointers slide, nodes light up, the answer falls out. These are real slides from the app:
Some ideas are easier shown than told. Narrated, animated reels walk you through a problem end-to-end, like this one on a binary tree's right side view. Tap to play. →
Quick recall reps where the wrong answers are real beginner traps, so a miss actually teaches you.
It quietly resurfaces what you're shaky on and hides what you've mastered. Tap "Again" and it comes back sooner.
Ask anything on any post and get a patient, beginner-first answer grounded in that lesson.
Correct, runnable code and honest complexity, explained like you're new, not like a textbook.
Your next scroll could be a step toward the offer. Start now. It's free.