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CUUUUBE

Drag to twist the layers of a 3D cube until every face matches. Scramble it and solve it again.

CUUUUBE web game showing a colorful cube puzzle
Play in the browser, then grab the app for offline rounds.

iPhone and iPad 1.0.2, July 22, 2026. Android 1.0.5 (5), November 3, 2026.

Google Play beta: Prefer Play Store updates to sideloading? Join the Coolhand beta group first (I’d really appreciate it). I’ll add this app’s opt-in link here when its Play beta is ready.

Installing on Android: Tap Download for Android, open the downloaded file, and allow installs from this source if Android asks. If Android blocks installation, tap Advanced, then Install anyway.

  • A 2×2 cube in red, yellow, navy, pink and cyan, the timer at 0:00 and the size buttons along the bottom.
  • A 3×3 cube partway through a turn, its top layer twisted out of line.
  • A 5×5 cube in cyan, green, navy and white, mid-turn, on the pale cyan theme.
  • A 3×3 cube in blues and greens under the word HELLO.
  • The best-times board: the fastest solves for each size from 2×2 to 5×5, with a Close button.

How it plays

Drag across the stickers to turn a layer; drag the empty space around the cube to turn the whole thing. The bar along the bottom scrambles, changes the colors and picks the size, from 2×2 up to 5×5. The clock starts with your first turn after a scramble and stops when every face matches.

  • Best times. The ten fastest for each size, with your initials.
  • Five color schemes, tuned so the six faces stay apart under simulated protanopia, deuteranopia and tritanopia. The faces are still told apart by color alone.
  • Picks up where you left off. A half-solved cube and its time are saved.
  • Light heckling. Sit at 0:00 and the timer says hello, then asks if anyone’s there. Finish a face and the cube does a little bounce; flail long enough and it shakes at you.

The cube started as The Cube, Boris Šehovac’s Three.js pen on CodePen. I added the sizes, the color schemes, the timer and the best times. The web version is the same game. On Android it draws at a lower resolution and skips the soft shadows, so tablets keep up.

What you need

  • iPhone or iPad with iOS 16 or later.
  • Android 8.0 or later, on a phone or tablet with a touchscreen.
  • No account, and no connection.

What stays on the phone

Your saved cube, best times, initials and colors are kept in the app, on the device. The Android app asks for no permissions at all and blocks network loads. The App Store label for the iPhone app reads Data Not Collected.