Sort colorful spheres into tubes, challenge your brain with 150 levels, earn achievements, and conquer daily challenges — all for free.
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Progressively challenging puzzles from 3 colors and 5 tubes to 10 colors and 12 tubes. Earn up to 3 stars on every level.
A fresh puzzle every day. Build your streak, test your skills, and keep coming back for more.
Stuck on a tough level? Use hints to find the next move. Earn shields through achievements to get extra moves when you need them most.
From First Steps to Master Purist — unlock achievements as you progress and earn special rewards along the way.
Race the clock in a separate timed mode. Shields add bonus time. Can you beat every level before time runs out?
Smooth animations, vibrant sphere colors, and satisfying audio feedback make every sort feel rewarding.
Select a tube to pick up the top sphere. It lifts out and waits for your next move.
Tap another tube to drop the sphere. You can only place it on a matching color or into an empty tube.
Fill each tube with spheres of the same color. Clear them all to complete the level and earn your stars.
Download Sphere Stack free on Google Play and start sorting today.
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