アル楽
Education Contains ads
Learn algorithms by doing them: Visualize algorithms and understand sorting, searching, and recursion.
- Downloads
- 2+
- on Google Play
- Price
- Free
- No in-app purchases
- Updated
- Oct 20
- 2026 · v3.0
Screenshots
About アル楽
Experience three areas—sorting, searching, and recursion—through interactive animations.
【Included Algorithms】
■ Sorting (6 types)
・Bubble Sort / Selection Sort / Insertion Sort
・Merge Sort / Quick Sort / Heap Sort
The "Race Mode" allows you to run multiple algorithms simultaneously on the same array, giving you a clear visual representation of the differences in computational complexity.
■ Searching (4 types)
・Breadth-First Search (BFS) / Depth-First Search (DFS)
・Dijkstra's Algorithm / A* (A*-Ster)
Visualize pathfinding behavior in a grid maze. You can tap and edit walls yourself.
■ Recursion
• Tower of Hanoi (3-8 images)
• Fractals such as Koch curves, Sierpinski triangles, and recursive trees
【Features】
• Intuitively understand "what's happening now" through color and movement
• Supports speed adjustment, step-by-step execution, and array pattern switching
• Each algorithm includes explanations of its mechanism, computational complexity, advantages/disadvantages, and real-world applications
• No ads during animation playback, designed to maintain immersion
• Smartphone/tablet compatible
• Supports both Japanese and English (follows device language settings)
【Recommended for】
• Students and beginners learning programming
• Those preparing for exams such as the Fundamental Information Technology Engineer exam
• Engineers who want to intuitively understand how algorithms work
• Intellectually curious individuals who "like watching things move"
【About Usage】
This app is completely free. There are no in-app purchases or subscriptions. To maintain and improve the app, we display ads (banner and full-screen ads) via Google AdMob, but the app is designed to not display any ads during animation playback.
The first in the "Easy Series" information-based category.
What’s new
Version 3.0 · Updated October 20, 2026
Version 3.0 - 70+ languages, including right-to-left layout (Android 13+: also via App languages). - Choose the array pattern and size in Sort and Race. - Reset replays the same array; "New array" makes a fresh one. - Corrected search descriptions and complexities. - Maze start and goal now have symbols, TalkBack reads the search progress, and playback is off while editing walls. - Color key under each board, Slow/Fast labels on the speed slider, and wall editing with TalkBack.
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| App | Rating | Price | Installs | Last updated | Compare |
|---|---|---|---|---|---|
| アル楽 | – | Free | 1+ | Oct 20, 2026 | |
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