At what point in my game do I add IAP and a Leaderboard? I'm done with my game and ready to publish, but I need to configure IAP for some sprites, as well as a Leaderboard, but both things are new to me. My first game didn't use either of the two
Which do I do first? Do I do them after exporting my game? Do I configure a leaderboard in my board AND in Google play?