I have an iPad with iOS 9.2 and yesterday I purchased Rex Rocket and got a "Rex Rocket can't be downloaded right now" after some minutes. I've tried multiple times and got the same message or it just stops downloading. I have 1.2 GB of memory and even tried installing on the PC with the same outcome. Anybody knows what should I do?
I find the App Store acts kind of strange sometimes. First try rebooting your device. If that doesn't work, try again in a few hours.