[ermir]

This is called a "desync" and is a bug in a particular implementation of multiplayer networking. In this model instead of the server sending the state to each player, it sends their inputs, and allows the local device to completely determine the state of the game. If there are any differences at all in how the game's calculations are made, the game will have different states in different devices. Even different models of the iPhone may have tiny differences in how they calculate the square root for example, and over time these minor differences cascade into totally different games.