Support

Yes, completely free. Ads support maintenance and improvements. Ads are never shown during animations.

iOS 17 and later (iPhone / iPad), Android 8.0 (API 26) and later.

Sorting (6): Bubble / Selection / Insertion / Merge / Quick / Heap
Searching (4): BFS / DFS / Dijkstra's algorithm / A*
Recursion: Tower of Hanoi / Koch curve / Sierpinski triangle / Recursive tree

Race Mode runs multiple algorithms on the same initial array side-by-side and compares finish order plus compare/swap counts. Watch Quick Sort blow past Bubble Sort in real time.

The app follows your device language. Both the iOS and Android versions support more than 70 languages. Change your OS language in Settings. You can also change the language just for ARURAKU (on iOS: Language in the ARURAKU section of Settings; on Android 13 and later: App languages).

Personalized ads: "Ad settings" at the bottom of the home screen lets you switch between Allow and Don't allow at any time.
iOS tracking (ATT): Settings → Privacy & Security → Tracking → ARURAKU.
Android advertising ID: Settings → Privacy (or Google) → Ads to reset or delete it.
See the Privacy Policy for details.

Please contact us via the email below. Including reproduction steps, device model, and OS version is appreciated.