A: Up9 backs up your progress via iCloud (if enabled) or your email login. Simply re-download and tap “Sign In” using the same method as before.
Note: I assume you mean the iOS app named “Up9” (app availability can change). Follow these steps to find and install it on an iPhone or iPad.
Up9 is available in the US, UK, Canada, Australia, India, and most European countries. If you see “Not Available in Your Region,” skip to the troubleshooting section below.