Algorena vs Kitti

Don't just watch algorithms. Call their next move. Algorena teaches algorithms the way they actually make sense: by running them. Every lesson is the same four steps. Watch the algorithm run, step by step, with every decision narrated. Then the machine stops mid-execution and asks you to call the next move — which cell does binary search look at now? Which neighbor does the queue serve? You answer, you find out immediately, and a wrong answer tells you exactly which idea slipped. Then three questions prove you understood the concept, not just the animation. Nothing here is a video. Every animation is the real algorithm executing on real data, generated fresh each time you practice — so you can never memorize a run. WHAT YOU LEARN • 58 skills across 18 tracks, from linear search to A* pathfinding • Free forever: arrays and search, two pointers and sliding window, prefix sums, the first sorts, stacks, queues and linked lists — 15 complete lessons, full quality, no teasers • Pro adds the advanced 43: merge and quick sort, heaps, radix, Timsort, hash tables, Bloom filters, LRU caches, BSTs, BFS and DFS, Dijkstra, topological sort, union-find, Kruskal, Prim, Bellman-Ford, Floyd-Warshall, recursion and backtracking, dynamic programming, flood fill, A*, KMP, Rabin-Karp, Boyer-Moore, tries, Huffman coding, minimax, alpha-beta pruning, quadtrees, convex hulls and Monte Carlo HOW IT WORKS • See — the algorithm runs on a live stage, with pseudocode highlighting the exact line executing • Predict — the run pauses at every real decision point and hands you the wheel • Understand — miss one and you get the specific misconception, not a red X • Prove it — three concept questions close every lesson A COACH THAT ACTUALLY WATCHES Algorena remembers which mistakes you repeat — not how many, but which kind. "You've been eliminating the half the target is actually in." Then it offers a three-round drill on exactly that. The Daily 5 mixes five skills a day, weakest first. BUILT FOR THE INTERVIEW, AND FOR AFTER IT Mastery per skill, a rank that climbs with the whole curriculum, and a streak that only asks for five minutes. ALGORENA PRO • All 43 advanced lessons • The Coach's drills and the Daily 5 across all 58 skills • No ads, ever • Every future lesson — included as the curriculum grows • One payment, shared with your family — no subscription PRIVACY, FOR REAL No account. No sign-in. No analytics of our own. No servers. Your progress never leaves your device — we couldn't see it if we wanted to. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Learn anything with a plan built around you. Kitti turns your learning goal into a personalized roadmap with bite-sized lessons, quick quizzes, daily reviews, and protected focus time. Choose what you want to learn, tell Kitti what success looks like, and follow a clear path from your first lesson to course completion. LEARNING MADE PERSONAL • Create a course for nearly any topic • Set your experience level and desired outcome • Review and refine your roadmap before starting • Learn through clear explanations, practical examples, and memorable takeaways • Test your understanding with quick quizzes and answer explanations REMEMBER WHAT YOU LEARN Kitti brings back previously studied concepts through daily challenges, helping you revisit material that is ready for another look. Track your review streak, mastery, and progress across each module. FOCUS WITH A COMPANION Start a flexible focus session whenever you are ready to study. Your animated companion stays beside you while you work, celebrates completed sessions, and earns fish as you make progress. MAKE KITTI YOURS Give your companion a name, choose from six colors, and select a backdrop that feels like home. Earn fish through learning and focus sessions, then use them to care for your companion. FOLLOW YOUR PROGRESS See your course progress, module mastery, review streak, earned fish, and total focus time in one place. Start a new learning plan anytime while keeping previous courses in your archive. Kitti uses AI to create personalized roadmaps, lessons, and quizzes. AI-generated content may contain mistakes, so verify important or fast-changing information with an authoritative source. An internet connection is required to create courses. Sign in with Apple is optional and can be used to keep your Kitti profile and progress available across supported devices. Terms of Use: https://kitti-rho.vercel.app/terms/ Privacy Policy: https://kitti-rho.vercel.app/privacy/