Block! Hexa Puzzle is a game where you drag the blocks to move them around and try to fit them all in the frame. The blocks can’t be rotated and sometimes there is an extra one thrown in which is not required for the puzzle.
The game can be played offline and there are many puzzles to solve, so that should keep most amused for a while
Again there are various types of ads which can be removed via an in-app purchase if you want and you can also buy hints if you were desperate for help, you don’t really need these to enjoy the game although the interstitial ads are annoying.