Pokémon is taking over the world. Again.

Last week, Nintendo and Niantic brought out "Pokémon Go," an augmented-reality smartphone game that has players exploring the real world to collect Pokémon and items and to battle other players.

It's proving wildly popular. Just how popular?

Well, it's already bigger than Tinder.

According to data from SimilarWeb,

"Pokémon Go" has already been installed on more Android smartphones in the US than the dating app Tinder, which is itself a runaway hit. As of Friday, the game was on 5.16% of all US Android phones — versus just over 2% for Tinder.

And that's not all.

According to a different metric, "Pokémon Go" is set to shortly overtake the social network Twitter.

Daily active users measures what proportion of the smartphone population uses an app on any given day. And on Friday, just over 3% of US Android owners were using the game daily — against about 3.5% for Twitter — with Pokémon Go's rate rising fast as new users continue to install the app.

More recent data is not available, but "Pokémon Go" may have already overtaken Twitter.

Tinder was launched back in 2012, five years ago, while Twitter came out in 2006 — a decade ago. "Pokémon Go" came out last week.

This success is causing teething problems for the app. Users are reporting frequent crashes and bugs, while Niantic has "paused" the game's international rollout — meaning it is officially available only in the US, Australia, and New Zealand. (There are workarounds, however, that let you install it in other countries.)

The runaway success of "Pokémon Go," which was built by the Google spin-off Niantic, has sent Nintendo's stock soaring 23% in a day. It's the company's best one-day jump since the 1980s. Nintendo is an investor in both Niantic and The Pokémon Company, which manages the Pokémon property.

Here's one last chart showing how "Pokémon Go" compares with other apps, again from SimilarWeb. Users are spending far more time in the app each day than some other popular apps, including WhatsApp, Instagram, and Snapchat.