Enlighten vs BIT

Learn AI, Python, SQL and more than 30 other skills in just five minutes a day. Enlighten turns real tech topics into a deck of simple cards. Each card teaches one idea in plain words, shows you real code, and ends with a quick quiz so you know you actually understood it. Cards you have already learned come back for a quick review just before you are about to forget them, so what you learn actually stays with you. HOW IT WORKS • Swipe through short cards that each explain a single idea • See real code examples on the cards, not just theory • Answer quick one-tap quizzes and see the answer right away • Review old cards at the right time so you never forget them WHAT'S INSIDE — 32 roadmaps and more than 3,900 cards • AI and Machine Learning: Machine Learning, Deep Learning, Generative AI, LLM Engineering, Computer Vision, NLP, PyTorch, TensorFlow, MLOps and Agentic AI • Interview subjects: Data Structures and Algorithms, System Design, Operating Systems, Computer Networks, Databases and SQL • Languages and tools: Python, JavaScript, TypeScript, Java, C, C++, Go, Rust, React, Node.js, Git, Docker, Kubernetes, Linux and Statistics • Cards range from easy to expert level, so you can start anywhere and go as deep as you like PREPARING FOR AN INTERVIEW? Ten minutes a day is all you need. A little practice every day beats staying up all night before the interview, and your daily streak keeps you on track. NOT LOOKING FOR A JOB? Enlighten is also for people who simply want to stay sharp. A few minutes with your coffee keeps your basics fresh, and the app makes sure you never forget what you already know. Enlighten is free to start. Enlighten Pro unlocks every roadmap plus other productivity features with a monthly or yearly subscription.

BIT turns computer science fundamentals into an endless puzzle game — not flashcards, not video lectures, just real questions with real answers, one after another. WHAT'S INSIDE Play — An endless stream of puzzles drawn from everything you've learned, weighted toward what you're starting to forget. Build a streak, chain a combo, and watch a running total climb. Explore — Every concept BIT teaches, organized like a real curriculum: prerequisites, learning objectives, worked examples, and real-world uses. From what a bit actually is, through binary arithmetic, arrays, linked lists, sorting, searching, and networking basics. Build — Hands-on projects where you actually build something: wire up a binary counter, construct an array from scratch, and see the concept work, not just read about it. Lab — Interactive playgrounds for experimenting freely with the ideas Play and Explore introduce. Puzzle of the Day — One challenge, the same for everyone, every day. Solve it, share your result, keep your streak alive without committing to a full session. WHAT BIT DOESN'T DO No ads. No accounts. No leaderboards. No in-app purchases. No data collection of any kind — everything you do stays on your device. BIT works completely offline because it has to: there's no server to talk to in the first place. WHO IT'S FOR Students learning computer science for the first time, self-taught programmers filling in fundamentals they skipped, and anyone who likes the idea of a daily brain-training habit that leaves them knowing something real. New content is added regularly — more domains, more concepts, more puzzle types — as an ongoing project, not a finished product.