Easy, fun, free, but ads – Montezuma Puzzle 2 Review

Maybe I just haven’t looked hard enough, but I would like to play without the ads... I don’t mind paying... Because of the shapes, there are often more than one correct answers. It’s a good info for little minds into shape puzzles that do not have a specific outline or picture scheme. It was a free app, so ads are expected, but can I buy out of them like in some other apps?
Review by Revmat on Montezuma Puzzle 2.