Nintendo Miitomo is a free-to-start app for iOS / Android

Opening of registrations for pre Miitomo the first app for the connected devices to be launched in March.

Create Account Nintendo before launch day to receive points Platinum My Nintendo :
https://www.nintendo.fr/News/2016/Fevrier/Ouverture-des-preenregistrements-pour-Miitomo-la-premiere-appli-pour-appareils-connectes-dont-le-lancement-aura-lieu-en-mars-1085678.html

Source ; www.nintendo.com