This game has a great price, nice pixel art style and is a lot of fun. However, its pretty hard to play as it constantly freezes or crashes, and requires a restart. This is likely due to it not being updated in a while, and so maybe its not so compatible with Apples constant updates to their OS. Yeah, i get it that its hard for developers to keep their apps up to date as well - but thats just the way it works on here. Either the dev needs to keep their apps updated, or remove them or have them removed so a customer isnt spending money trying to play what has become a sub-par product...
Tridus about Pixel Defenders Puzzle, v2.0.1