Coins come in different values, and in Coin Sort Puzzle they are all mixed up in stacks. Your job is to tap a stack to pick up its top coins, tap another slot to put them down, and sort everything by color and value. When a stack of one value is full, it merges into a coin of a higher value.
The goal is to finish each level in as few moves as possible. The game is relaxing and demanding at the same time: it tests attention and logic, and it rewards you for thinking before you tap. Keep one slot empty for big moves, merge as soon as a stack is full, and think about the space you will need next. For something similar, 2048 Classic has a comparable feeling of merging numbers.