Coloreku - Support
How the puzzle works, the settings that change how you play, and how to reach us.
What the game is
Coloreku is a colour logic puzzle for iPhone and iPad. Fill the empty pieces so that each colour appears exactly once in every row and every column. The pieces marked with a dot are already planted: they are your clues, and they cannot be changed.
Getting started
The first time you open the app, a three-step introduction explains the rule on a 2×2 practice board. After that, Home is where your next puzzle waits.
There are 32 phases across eight board sizes, from 2×2 up to 9×9, with four difficulty levels each: Easy, Medium, Hard and Very Hard. Finishing a phase unlocks the next one, and every time you open a phase the board is generated fresh, so a phase you have already beaten is a new puzzle rather than a repeat.
Garden collects the phases you have finished, arranged as eight chapters, one per board size. Progress adds up phases in bloom, wins, moves, play time and your best times.
Playing and correcting moves
"Color first" is on by default: pick a colour in the palette, then tap the pieces to paint them. Turn it off in Settings and the order flips — tap the piece first, then choose its colour.
Undo, Redo and Erase sit under the board, so a move you regret costs nothing, and Pause stops the clock when you need a break. Colours that clash in the same row or column are highlighted as you play.
Reading the board another way
The coloured pieces carry plant stickers. If you would rather read the board by shape, turn on "Simple symbols" in Settings and each colour gets a geometric symbol instead. Coloreku also follows the system's Differentiate Without Color and Reduce Motion settings, so turning either one on in iOS changes the game without a setting of its own.
Where your progress lives
Your sessions, progress, statistics and preferences are saved on your device. There is no account and no cloud sync, so progress does not follow you to another device, and deleting the app can delete what it saved. Device backups are Apple's, and depend on your settings.
Requirements
Coloreku runs on iPhone and iPad with iOS or iPadOS 26.5 or later. The interface is available in English and Brazilian Portuguese, and the game plays offline.
How to reach us
Email us at mgbirkans@gmail.com or use our contact form at Contact. We usually reply within two business days.
It helps to include your device model, your system version, the app version and what you were doing when it went wrong. Avoid sending personal information that is not needed to answer you.