While Miitomo only came out in Japan a couple of days ago, it's already quite a success by anyone's standards.
It surpassed LINE, Japan's biggest social app, on the charts and now Nintendo is boasting that Miitomo has been downloaded over a million time on the course of three days.
It also became one of the top trending topics on Twitter and this bodes well for its worldwide launch soon.
If you want, you can already download it right now using this guide but you won't be able to link your European Nintendo Account just yet.
We'll let you know when it launches worldwide.