I can't buy gems in Clash of Clans, conflicting Apple IDs I downloaded Clash of Clans using my sisters Apple ID and her Game Center, on my iPhone. I backed up my phone. Then when I got my new phone and I created a new Apple ID and new Game Center for me.

I had kept all my progress from my earlier phone. However, now when I try to buy gems, it pops up with this message:


  This item is for an app that has been purchased by a different Apple ID. To buy this item with this Apple ID you must first purchase the app.


I am guessing this means I have to delete the app and re-download it, but I am afraid I will lose all my progress.

Is there an easy solution for the Apple ID confusion?
Supercell saves your progress under your Game Center account. So, if you get a new device with a new Game Center account, you will lose your progress. To keep your progress, you will need to link your device to hers in the Clash of Clans settings.