Talk:FAQ/@comment-76.67.175.132-20121121025734/@comment-5085186-20121121042135

If you use an Apple device, no. It's all backed up onto your Game Center account. If you delete the game, then reinstall it, you just log back into GC before you open it again, and your data will be there.

If you are on Android, I have no idea how they are backing up the game information!