General questions
No, it isn't! You don't need to register to play in a server!
A lot of features are not working, that's because ultrapowa is on an alpha stage!
Yes, every Android version is supported.
Problems using the App
Don't worry, there are usually two kinds of errors, you can identify them by reading the exit code. The most commons are:
  • 127: There app is unable to launch the command cp, as it is not found on your device, you can easily solve it by installing BusyBox.
  • 1: Is a generic error, I'm sorry but I actually don't know how to fix this, some user reported me that editing /etc/hosts file permission to rw with a root browser did the trick, you can try :)
Sure, on the left side menu you can add whatever ip you want!