Algo Viewer vs Coding Interview

AlgoViewer helps you understand algorithms the way they were meant to be understood — by watching them work, step by step. Whether you're a CS student studying for exams, a developer preparing for technical interviews, or just someone curious about how sorting, searching, and graph traversal actually work, this app breaks it down visually so it clicks. WHAT'S INSIDE 40 algorithms and data structures across 6 categories: • Search — Linear, Binary, Interpolation, Jump, Exponential • Sorting — Bubble, Selection, Insertion, Merge, Quick, Heap, Shell, Counting, Radix • Linear Data Structures — Stack, Queue, Deque, Linked List, Doubly Linked List, Circular Linked List • Non-Linear Data Structures — Binary Tree, Binary Search Tree, AVL Tree, Heap, Hash Table • Graphs — BFS, DFS, Dijkstra, Prim, Kruskal, Bellman-Ford, Floyd-Warshall • Math — Factorial, Fibonacci, GCD, LCM, Sieve of Eratosthenes, Prime Factorization, Fast Exponentiation, Catalan Numbers • Home Screen and Lock Screen widgets: a new Algorithm of the Day every day, plus your streak and progress. HOW IT WORKS 1. Pick an algorithm 2. Enter your own data or use random values 3. Tap play and watch each step unfold with color-coded animations 4. Read the explanation to understand the "why" behind each step 5. Check out the code — every algorithm includes examples in Swift, Python, and Java BUILT FOR LEARNING • Step-by-step animations you can pause, step through, and speed up • Detailed explanations with complexity analysis and real-world use cases • Code examples in 3 languages with copy support • Time complexity charts so you can see how algorithms scale • Quizzes for every algorithm to test what you learned • Your progress, achievements, and favorites sync with iCloud • Light and dark mode • Available in English and Spanish FREE TO START, ONE-TIME UNLOCK 17 algorithms are free, forever. Unlock all 40 with a single one-time purchase: no subscriptions and no ads. Built with care by a developer who believes the best way to learn an algorithm is to see it in action.

Algo Mind turns abstract algorithms into something you can see. Every lesson pairs a step-by-step animated visualization with synced, highlighted code — you watch pointers move, trees grow, and tables fill in until the idea actually clicks. Stop memorizing solutions; learn the patterns behind them. WATCH ALGORITHMS THINK • 164 classic problems fully animated — play, pause, and step through at your own pace • Code highlighted in sync with the animation, line by line • A live memory view shows variables, pointers, and call frames as they change • Arrays, hash maps, linked lists, stacks, queues, binary trees, tries, heaps, graphs, matrices, DP tables, recursion stacks, sliding windows, and bit operations — one consistent visual language 1,576 PROBLEMS DEEP • The full interview canon, from Two Sum to hard dynamic programming • Solutions in four languages: Python, Java, Kotlin, and C++ • Plain-language explanations, worked examples, and time/space complexity for every problem • Filter by topic, difficulty, company, or your bookmarks — and track every solve A CLEAR PATH • Eight chapters from Foundations to interview-ready, picking up exactly where you left off • 21 animated cheatsheets with nearly 500 animated steps and predict-the-next-step quizzes — perfect for a fast review the night before an interview PRACTICE THAT STICKS • Quick 5, Daily Mix, weak-spot review, or build your own session by topic, difficulty, and company • Three question types: order the steps, true/false concept checks, and 176 fill-in-the-blank code puzzles • Timed Rank Mode for when you want a little pressure STAY ON TRACK • Daily streaks that count any learning activity • XP and per-topic progress tracking • Bookmarks and optional study reminders • Full dark mode • Core lessons work offline • No ads, ever START TODAY A selection of sample problems, puzzles, and cheatsheets is free. An optional Algo Mind Premium subscription unlocks the full library. Subscriptions renew automatically and can be managed in your App Store account settings. Privacy Policy: https://www.algomind.app/privacy.html Terms of Use: https://www.algomind.app/terms.html