I agree with gerad, use "My" -- it's shorter, cleaner, and appeals to the user more. "Your" creates distance between the app and the user, if one were all alone

I agree with gerad, use "My" -- it's shorter, cleaner, and appeals to the user more. "Your" creates distance between the app and the user, if one were all alone, "My" would still exist, but "Your" would not.