Working on every version of Madden Mobile Both iOS, and Android.
Ok so this is pretty simple and straight forward but i haven't seen any posts on this before so here it is.
1.) Download GameGem from Cydia, simply search GameGem in the search bar and install it! (I dont know of a Android counter part to GameGem, though im sure there is one!)
2.) Once Installed open up Madden Mobile and then hit the home button and open up GameGem.
3.) You then need to select Madden Mobile as the application and do the following.
[Hidden Content]
This is great for getting 99 Odell done quickly, and 99 Gronk done. Also you can set the quarter to a crazy amount and run a season bot to help "grind" yards for Emmit, Rice, or Hester.
Hope this helped!
This can also be used for a point hack, but you have a chance of getting banned using it, as well as the fact that its game ruining.