Miitomo Meets Its End On 9th May
"Evidently, Nintendo has decided that Miitomo isn’t worth keeping around anymore; it was just announced that the app is getting the axe. Sales of Miitomo coins ended today, they will now be distributed along with game tickets via daily logins until the app closes up shop for good on 9th May. Until then, there'll be a Miifoto event on Twitter as well as a topic on Miitomo memories in the Answers Central. It’ll be sad to see Miitomo go, but at least it had a good run of a couple years."
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Guess there aren't enough active users to justify continuing the service. In all reality, the app was just a glorified survey system with microtransactions. Hopefully it gave Nintendo insight on how the mobile market works so they don't make similar mistakes in the future, because after a few days I was pretty bored of using Miitomo 
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