Rule 1 of picking mobile games: If it's "free" and is sponsoring a YouTube video, or if it's advertised in another mobile game, or if it advertised in the store

Rule 1 of picking mobile games: If it's "free" and is sponsoring a YouTube video, or if it's advertised in another mobile game, or if it advertised in the store, DON'T PLAY IT, because it is not a game! I wish the stores had an "In Game Currency" filter, not just "In App Purchases".