loved it online, but iphone port not reliable

In my experience, this game is unplayable on an uptodate iphone 5s. Levels crash without saving before they can be completed. I contacted the developer and they said that unfortunately theyve moved on to newer projects. I love their other games and this one online, but I want to make sure people know what theyre getting tion before they pay for this. It just doesnt work.

Joecool9034568 about SteamBirds, v1.3.1