Nintendo launched its first ever app called Miitomo on March 31^st and just a few days later, around 3 million downloads were reported by the Japanese company.

The app has been made available in its country of origin, Japan, for a few weeks before its debut in the United States. And with the number of downloads it has steadily gathered since then, pretty soon additional millions will download this app in the coming weeks.

This app is a funny combination of Animal Crossing and Tomodachi Life and enables the user to create a Mii and use it to socialize with friends through a series of questions asked by the Mii. 

A player can choose from the many varying outfits and accessories to dress up the Mii. There are also Pachinko styled mini games that players can use that will give them the chance to win clothing items to dress up their Miis.

The app was given high approval ratings by Google Play, with 3.8 stars out of 5, and Apple App store, with 4 stars out of 5.

Nintendo is well-known for the creation of portable video-games such as Game Boy which it launched in 1989. Some have criticized the company for being slow in adapting its games to mobile devices.

But starting in 2015, the Japanese video game company produced three mobile games. Now, its first app Mii is something that users can expect to see on their 3 DS consoles or Wii U.

In 2006, Nintendo launched the Wii, wherein it also introduced the concept of the Mii - three dimensional avatars that players could create and use in the company's games and apps. This latest Miitomo app is practically just a continuation of that concept.

Since the launch of Miitomo last week, shares of Nintendo have risen 8 percent, according to a CNBC report. This app has suddenly become popular and several memes of it as well as their MiiFoto editor have started littering the internet.