Offline
A level can be played with no connection. The shared list updates when the phone is online and signed in with Apple.
For iPhone and Android
TubeSort
Sort the colored water until every tube holds a single color. Pour a color onto the same color, or into an empty tube, and clear the level.
1.1.1 (29) is in TestFlight for invited testers. It is not a public download, so this page does not offer one. Android is in Google Play internal testing as version 1.1.1 (5) for invited testers. Both are the same game: one empty tube, harder levels from level 100, helpers that still work after an empty tube the player places, and an Extra tab that sells packs of a single extra. This page does not offer a download for either platform and does not publish the internal testing link.
At a glance
There are 1,000 levels. Every level is prepared in advance, so the same level is the same for every player. Levels 5, 10, and then every 25th level are a step harder. Every level can be solved.
Beside the level on the home screen, the path runs back to level 1 and ahead only as far as the next 25 levels. The current circle starts that level.
What you can use
Coins
Pouring a color onto the same color adds one coin for each segment that moves. The shared list ranks players by level, then by coins.
Helpers
An extra empty tube costs 500 coins and is available from level 1. Undo costs 400 coins and is available from level 5.
Shop
Backgrounds cost 500 coins or €0.99. Tube designs other than Classic cost 500 coins or €0.99. Classic is free. An empty tube costs 500 coins. Undo costs 400 coins and opens at level 5. Coin packs are 600 coins for €0.99, 1400 for €1.99, 2500 for €2.99, 4500 for €4.99, 7000 for €6.99, 12000 for €9.99, 23000 for €14.99, and 37000 for €19.99. Coin packs are consumable. After Apple delivers them, they are not returned. The coins stay in the progress on the phone.
Remove ADS
Remove ADS costs €4.99. It stops the ads between levels and adds 1000 coins and 5 empty tubes once. It does not add undos. When the app opens again, the purchase is recognized and that bonus is not added a second time. There is no Restore Purchases button. Optional ads in the shop remain.
Color marks
Color marks are optional in Settings, for players who find colors hard to tell apart. They are symbols on the liquid, not a separate mode.
The developer, the languages, and the shared leaderboard are described in About.