About this app
Satisfying sorting meets smart strategy. Tap the boxes, release the balls, and sort them by color to serve every customer — one perfect delivery at a time. Sand Up puts a fresh spin on the classic sorting puzzle. Open boxes to send colorful balls rolling into the dock, group them by color, and hand them over to waiting customers. Sounds simple? Tunnels, gates, locks, and gift boxes will make every level a brain-teasing challenge! Why you'll keep playing: - Easy to Learn, Hard to Master: one-tap controls, endless depth. - Oddly Satisfying Sorting: watch the balls roll, click, and fall perfectly into place. - Ever-Evolving Puzzles: hundreds of levels with new mechanics unlocking as you go. - Handy Boosters: stuck on a tricky level? Hammer, Shuffle, and Sweep have your back. - Offline Play: no WiFi needed — perfect for your commute. Plan your moves, serve every customer, and become the ultimate sorting master. Download Rainbow Balls Loop and let the rainbow roll!
Latest release
What’s New
Version 1.10.00 A BIGGER FINISH The level complete screen is now a full-screen celebration: your coins burst across the board, and you can tap once to double them. BOOSTERS YOU CAN ACTUALLY READ Boosters are larger, sit higher on the screen, and every coin cost now uses the same clear style — no more guessing what a booster will run you. A SMOOTHER CLIMB The conveyor belt now grows steadily as you progress instead of jumping in size at one fixed level, so early levels stay tight and later ones open up. SPEED BOOST, FIXED The speed boost is tuned for better control, survives closing the app, and counts down in real time — no more losing it on relaunch or getting a timer stuck for days. Thanks for playing Rainbow Balls.
Audience growth
Ratings growth
Momentum comes from crawler snapshots for the tracked storefront. “Viral growth signal” means unusually fast recent rating gains; it is an indicator, not download data.
Price tracking
Price intelligence
- First observed Aug 13, 2026 · 9:37 PM Free