Miitomo is a game for IPhone, iPad and iPod touch. You can make a mii and earn coins. You get a daily bonus for logging in daily, and you can buy your mii some clothes. If you don't wanna spend coins, there is a game called miitomo drop, where you can earn items, but it's really hard. You can friend people via Facebook, Twitter and an option in the app called face to face, where you can click a symbol and then it will locate another player who pressed that symbol at the same time.