I'm creating a game where the player can buy non-consumable items, there are 10 to buy and once bought they stay bought. The transactions for these items (a simple boolean for each item) is recorded on a server (Parse.com).
So I'm unsure what I need to do with my restore button as it doesn't matter what device the player signs into my game on, as long as they use the same account (which is tied to their GameCenter details) the game will know what items they have bought anyway, so there's no need for my game to have a restore button, but Apple says I need one, so what should I do?