Pour colors from tube to tube until each holds one. A calm water sort, offline.
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Pour liquid from one test tube into another until every tube holds a single color. When a tube is sorted, a cork goes in.
SortFlow is a color sort puzzle set on a chemist's bench: real test tubes in a brass rack, twelve mineral pigments and the sound of glass. There is no timer and there are no lives, so you can think each pour through.
How it plays
• Tap a tube to lift it, then tap another to pour
• Pour onto the same color or into an empty tube
• Sort every tube to finish the level
• Fewer moves earn more stars
Hundreds of levels
Every level is generated and checked by a solver before you play it, so every board can be solved. From level 51, every fifth level is a mystery: the colors below the top stay hidden until they rise to the surface.
Help when you need it
A hint shows the best next move, worked out by the same solver. Undo a pour, add an empty tube, or skip a level.
Every day
A daily challenge with a streak to keep, and a free spin of the lucky wheel for coins and power-ups.
Worlds and collections
Six worlds, from Ocean to Volcano, open as you progress. Spend the coins you earn on tube styles and backgrounds.
Easy on the eyes
• Colors chosen to stay distinct, with an alchemical sign on every color in color-blind mode
• Light, dark and AMOLED black themes
• Plays offline
• Free with ads; one purchase removes them