I have minecraft no idea how long ago i bought for iOS. Now I wanted to install it again, but it will display the price again. Do I have to pay this now or does he realize that I have already paid for it?
You do not have to pay for apps that you already bought.
If there's a price deposited which you should pay, this is a completely different version or you have bought the former version with a different AppleID.
If you've changed the AppleID, you'll have to buy it again.
It's the same appleID. Ne other version would be really nonsense. Had I installed it all the time, the updates would have come. It's the same game after all.
I have not