This app was mentioned in 2 comments, with an average of 16.50 upvotes
If anyone wants to try it out.
It actually ended up being a pretty relaxing game once I put music in. There are ads in the game but none of those full page pop-up ads, just little banner ads and you can turn those off if you feel like. (edit: Oh and don't worry the only permission it needs is one to be able to save to your phone)
(edit^2 : I was actually going to save this as a joke for any friends that play it but a couple of you guys like it so here's to you: if you go in the options and put in the code "thatsagoodsauce" you get a little easter egg)
Android:
https://play.google.com/store/apps/details?id=com.OpacityEntertainment.Kewb
iOS is being reviewed but honestly it's a lot less friendly. Doesn't compress as well.