I would like to create my own addon for a quite simple mobile game. The project should be that of trying to predict the enemy's next move based on my empirical data and some action that he does IN game. This should be summarized in a few lines of text that I would like to superimpose on my screen. I am new to mobile programming and I would like to know how to understand what data I can retrieve from the original game and in which form, so to start thinking about how to implement my ideas.
PS: Nothing illegal and no cheating in game intended!
I think the first step would be to find out what kind of API that app makes available for other apps to use. I don't know what mechanisms iOS has for this scenario; on Android, Intents would likely be involved.