Comparison

DSA Master vs Free

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

DSA Master

Master algorithms and data structures with interactive visualizations, executable code, and practice challenges. Supports multiple programming languages and offers progress tracking for technical interview preparation.

Highlights
  • Interactive visualizations
  • Live code execution
  • Multi-language support
  • Practice challenges
  • Progress tracking
  • Algorithm animations
Features
Read full description

Master algorithms and data structures with a comprehensive learning platform for computer science students, software engineers, and technical interview preparation. COMPREHENSIVE LEARNING PLATFORM Explore 50+ data structures and algorithms with interactive visualizations, executable code examples, and hands-on practice challenges. From fundamental arrays and linked lists to advanced graph algorithms. INTERACTIVE CODE EXECUTION • Live Code Playground - Write, edit, and execute code in the app • Multi-Language Support - Run code in Python, JavaScript, Java, C++, Kotlin, Dart, and Go • Real-Time Execution Results - See output, errors, and execution time • Syntax Highlighting - Professional code editor with language-specific highlighting • Code Copy & Share - Easily copy code examples or share ANIMATED ALGORITHM VISUALIZATIONS • Step-by-Step Animations - Watch algorithms execute with detailed animated visualizations • Interactive Controls - Play, pause, replay, and control animation speed • Full-Screen Mode - Immersive visualization experience • Visual Data Flow - See how data structures transform during algorithm execution • Multiple Visualization Types - Sorting, searching, tree traversal, graph algorithms COMPREHENSIVE CODE EXAMPLES • 8 Programming Languages - Learn from implementations in Python, JavaScript, Java, C++, Kotlin, Dart, Go, and more • Production-Ready Code - Well-structured, commented code examples • Language Comparison - Compare implementations across different languages • Copy to Playground - Instantly load examples into the code playground • Complexity Analysis - Detailed time and space complexity analysis MODERN INTERFACE & NAVIGATION • Topic Detail Pages - Comprehensive views with Overview, Code, and Visualize sections • Advanced Search & Filtering - Find topics by category, difficulty, or learning path • Smart Recommendations - Personalized topic suggestions • Bookmarks & Notes - Save favorite topics and add personal notes PROGRESS TRACKING & ANALYTICS • Learning Analytics - Track topics completed, challenges solved, and study time • Achievement System - Unlock achievements as you progress • Study Streaks - Build consistent learning habits with daily streak tracking • Study Goals - Set and monitor daily and weekly learning objectives • Performance Insights - Detailed analytics on learning patterns PRACTICE & CHALLENGES • Daily Challenges - New coding challenges every day with varying difficulty levels • Practice Problems - Extensive collection of problems to test understanding • Difficulty Levels - Problems categorized as Easy, Medium, and Hard • Challenge Tracking - Monitor completion rate and improvement COMPREHENSIVE CONTENT LIBRARY Data Structures: Arrays, Dynamic Arrays, Linked Lists, Stacks, Queues, Deques, Hash Tables, Trees (Binary, BST, AVL, Red-Black, Segment, Fenwick), Heaps, Tries, Suffix Trees, Graphs Algorithms: Sorting (Bubble, Selection, Insertion, Merge, Quick, Heap, Topological), Searching (Linear, Binary), Graph Algorithms (DFS, BFS, Dijkstra's, Bellman-Ford, Floyd-Warshall, Kruskal's, Prim's), String Matching (KMP, Rabin-Karp), Tree Traversal ADDITIONAL FEATURES • Offline Access - All content available offline for learning anywhere • Dark Mode Support - Comfortable studying experience in any lighting • Time Complexity Charts - Visual comparisons of algorithm performance • Related Topics - Discover connected concepts and build understanding • Accessibility - Full VoiceOver support and accessibility features • Computer Science Students - Master fundamentals and advanced topics • Software Engineers - Strengthen algorithmic thinking and problem-solving • Technical Interview Preparation - Comprehensive coverage of interview questions • Self-Learners - Structured learning path from beginner to expert • Competitive Programmers - Advanced algorithms and optimization techniques

About

Free

Read full description

This app consists of multiple mini games in which users learn and practice skills critical to the development of Free-Body Diagrams. This is a fundamental skill for engineers, generally learned in an Introduction to Statics or Mechanics course. The app provides users with asynchronous opportunities for training, varied tasks that target specific FBD issues, and several levels of immediate feedback.

Screenshots

DSA Master4 screens
Free4 screens

Verdict

The call

The clearest difference is in-app purchases: Free at none against DSA Master's 1. Free also leads on ads (none vs shown) and update cadence (every 4 days vs weekly). On price and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. DSA Master sells 1 one-off in-app purchase. Free asks for nothing beyond the download.

UpkeepUpdate frequency

DSA Master ships an update weekly, Free every 4 days. The most recent releases landed on September 7, 2026 and June 2, 2026 respectively.

Scorecard4 real differences · 6 level
DSA Master versus Free: the parameters behind the verdict, then further details
ParameterDSA MasterFree
PriceFreeFree
Rating4.2 (35 ratings) — better—
Positive reviews12.5% of reviews—
Number of ratings35 — better—
Update frequencyWeeklyEvery 4 days — better
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.211.0 — better
Further details — not scored
Size150 MB602 MB
Age rating4+4+
DeveloperAlok SinghWorcester Polytechnic Institute

In-app purchases

1 purchases

DSA Master

One-time1
  • Remove Ads$1.99
None

Free

No in-app purchases

Questions

Is DSA Master free?
DSA Master is free to download, with in-app purchases available.
Is Free free?
Free is free to download, with no in-app purchases.
Do DSA Master or Free have ads?
DSA Master shows ads; Free does not.
Which is updated more often, DSA Master or Free?
DSA Master ships an update weekly, and Free every 4 days. Most recently, DSA Master was updated on September 7, 2026 and Free on June 2, 2026.

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