DSA Master - Data & Algorithms is a learning app for data structures and algorithms. It brings together more than 50 topics, each with an overview, commented code, and an animated visualization, plus a built-in code playground where you can run code on your phone. It is designed to help you build real intuition for how algorithms work, from arrays and linked lists to advanced graph algorithms.

The app is aimed at computer science students mastering fundamentals, software engineers who want to sharpen their problem-solving, people preparing for technical interviews, self-learners who want a structured path from beginner to advanced, and competitive programmers looking at advanced algorithms and optimization.

The content library is broad. Data structures include arrays, dynamic arrays, linked lists, stacks, queues, deques, hash tables, heaps, tries, suffix trees, graphs, and many kinds of trees: binary, binary search, AVL, red-black, segment, and Fenwick. Algorithms include bubble, selection, insertion, merge, quick, and heap sort, topological sort, linear and binary search, graph algorithms such as DFS, BFS, Dijkstra's, Bellman-Ford, Floyd-Warshall, Kruskal's, and Prim's, string matching with KMP and Rabin-Karp, and tree traversal.

Each topic page has Overview, Code, and Visualize sections. Step-by-step animations show how data changes as an algorithm runs, with play, pause, replay, and speed controls, and a full-screen mode. Code examples are well structured and commented, cover languages including Python, JavaScript, Java, C++, Kotlin, Dart, and Go, let you compare implementations across languages, and include time and space complexity analysis. Time complexity charts give a visual comparison of performance, and related topics point you to connected ideas.

The live code playground lets you write, edit, and run code in Python, JavaScript, Java, C++, Kotlin, Dart, and Go, and shows the output, any errors, and the execution time. It has syntax highlighting, and you can load any example into it with one tap, or copy and share code. For practice, there are daily challenges and a collection of problems marked Easy, Medium, or Hard, with tracking of your completion rate.

Progress tools help you study regularly. The app tracks topics completed, challenges solved, and study time, and offers achievements, daily study streaks, and daily and weekly goals. Search and filters find topics by category, difficulty, or learning path, and recommendations suggest what to study next. You can bookmark topics and add your own notes. All content is available offline, dark mode is supported, and the app includes full VoiceOver support. DSA Master is free to download from the App Store, with an optional in-app purchase to remove ads. It runs on iPhone and iPad and requires iOS 16.2 or later.