Miitomo was a social media network that was released by Nintendo. The player avatar was a variation of the Nintendo Mii, the Nintendo avatars used by Nintendo since the Wii.
It was released for iOS on March 17, 2016, and for Android on May 1, 2016. It was discontinued on May 9, 2018.
On June 10, 2018, Kaeuru Team released Kaerutomo, a fan server that brought the service back online.