Board Thread:Plants vs. Zombies 2: It's About Time/@comment-26272337-20150403025145/@comment-25154254-20150403034908

For iOS, I don't know, maybe the difference is the file type. Synchronizing with G+ means you use your G+ account to save your progress. If you have lost your data for some reason, you could log in that account, and the data would come back. You can do this on main menu. There may be a g+ white button at the right bottom of the screen. G+ is Google Play. For Game Center, I will ask my friend to let me borrow his device.