This is by far the most enjoyable puzzle game on Android I've tried so far. Pros: 1. No advertising whatsoever! 2. Very straightforward game mechanic 3. Easy in the beginning, challenging in the end 4. Simply calming and relaxing 5. Simple and colorful graphics 6. Endless supply of new puzzles! 7. Create your own puzzles too! Cons: 1. Battery consumption is huge on my Huawei P30 Pro. Review: So far I managed to finish all puzzles from the adventure mode and finished the 50 daily puzzles too. Do not believe the reviewers who say some puzzles don't recognize when the screen is one color - look at the corners of your screen please. They simply didn't see the small patches in the corners. I finished every single puzzle without any technical problems described in some reviews. Considering that this game is free and doesn't feature any in-game advertising whatsoever, I almost feel guilty for not having spent some money on hints how to solve some puzzles. I simply didn't need them. But, you can unlock some nice color patterns for 0,89 € (probably 0,99 $) for creating your own puzzles once you blasted through the main adventure mode. I think I will do this right now because seriously: With an endless supply of new puzzles and being as fun as this is, this would be a steal even for around 4,99 €. Great little gem of a game you should definitely try out today if you like logical puzzle games which are not solely aimed at very young audiences!