I'm on a posting binge tonight, forgive me. I've seen countless posts from people on many forums about suddenly finding themselves on a level 10 or 20 lower than they were, having lost all progress (and gem purchases). The most common are people who find themselves at the very start. I know why this is happening and can only make one strong recommendation. Your game is saved locally to your device. In my case, my Ipad memory. Any corruption in that database can be catastrophic. I strongly recommend backing up your device to avoid such losses. In my case, I sync to iTunes on my laptop saving the backup both to iCloud, my server, and my computer for good measure. I refuse to do less after having lost a month of hard work and long hours on an animation project plus the backup in one swipe. I was sleep deprived and believed I was cleaning up my workspace. The client was due to edit the show in 10 hours and I had to start over. Trust me, that's far worse than loosing a game. I learned my lesson and it cost me tens of thousands of dollars in lost revenue and a customers trust. On a hopeful note, I've read feedback from Tribez developers that they are working on a system to allow you to save your game data on their servers. It's anyone's guess how long this will take, if it actually gets released into the wild, and what issues may arrive from it. Backing up your system is still the safest course of action. Now watch me eat my own words. I'd better back up tonight.