End in-app purchases!!!!!

I love the graphics, music and adventurous feel of this game, but I hate that it is too hard to progress without purchasing power-ups. In each level, many points are gained but for no apparent reason. The points do not advance progress in any ways. I despise these types of in-app purchases. I would prefer to pay more for the game initially than to be a slave to power-ups.
Also, if the game is deleted and re-installed, all progress is lost, even if I specifically selected "Keep" at the time of deletion.

Puzzle Jumper about Gemcrafter: Puzzle Journey, v1.1.1