Algo Demo

Learn Algorithms Visually

Only for iPhone

Free · Designed for iPhone

iPhone

Algo Demo — Visualize Algorithms & Data Structures Designed for CS students, interview preppers, and educators, Algo Demo demystifies algorithms through interactive animations and step-by-step visualizations. Covered Topics: • Data Structures: Linked Lists, Binary Trees, Stacks, Hash Tables • Algorithms: Sorting, Two Pointers, Dynamic Programming, Binary Search Key Features: • Live Animations: Break down each step of algorithm execution • Interactive Playback: Adjust speed, pause, or rewind for deeper learning Turn complexity into clarity with Algo Demo!

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New Features • Added multiple algorithm demonstrations: • Stack: Wildcard parenthesis matching • Two Pointers: 3Sum, Longest unique substring, Minimum window substring • Hash: String permutation, First missing positive • Binary Tree: Construction from preorder and inorder • Binary Search: Peak finding, Closest K values, Wood cutting • DP: Maze with obstacles, Stay-at-origin paths, Coin change, Knapsack problems • Enhanced binary tree traversal with stack operations • Improved sorting animations with smooth arc transitions Improvements & Fixes • Fixed display issues in cycle detection, substring coverage and parenthesis matching • Enhanced algorithm explanations with indexes and position markers • Redesigned maze examples for better clarity • Fixed interaction issues in quick sort and selection sort

The developer, zhuo zeng, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Not Linked to You

    The following data may be collected but it is not linked to your identity:

    • Identifiers
    • Usage Data
    • Diagnostics

Privacy practices may vary based, for example, on the features you use or your age. Learn More

The developer has not yet indicated which accessibility features this app supports. Learn More

  • Provider
    • zhuo zeng
  • Size
    • 34.3 MB
  • Category
    • Education
  • Compatibility
    Requires iOS 13.0 or later.
    • iPhone
      Requires iOS 13.0 or later.
    • iPod touch
      Requires iOS 13.0 or later.
    • Mac
      Requires macOS 11.0 or later and a Mac with Apple M1 chip or later.
    • Apple Vision
      Requires visionOS 1.0 or later.
  • Languages
    • English and Simplified Chinese
  • Age Rating
    16+
  • Copyright
    • © 2025 Zhuo Zeng