Well done! That's a really good score! Also thank you for the kind words, glad you liked my sounds haha :D I used LootLocker for the Leaderboards and it was actually relatively easy to implement! I can recommend both of these tutorials on how to use LootLocker in Unity:
Ok great ! Thank for you answer :) I already used lootlocker too, it's very good and easy, that's right ! (But a bit expensive if your game has success and you use only leaderboards)