Another free success for Backflip Studios.
iPhone games developer Backflip Studios has seen its new NinJump game downloaded more than two million times in its first seven days on the App Store.
CEO Julian Farrior tells ME that in that first week, people have played more than 10 million sessions, averaging five minutes each time.
650,000 unique users are playing the game every day, too. "It's been our strongest launch to date, far surpassing what we initially saw with Paper Toss," says Farrior.
That game is what made Backflip famous - earlier this month, it revealed that Paper Toss downloads had passed the 24 million mark.
The studio currently has four free games in the App Store Top 50, and more than 38 million installs across its suite of games, which also include Graffiti Ball, Strike Night and Ragdoll Blaster.
Backflip makes its money from a combination of in-game advertising and upselling players to paid versions of the games.
In May, AdMob's Russell Buckley confirmed that Backflip was making $100,000 a month from using AdMob's ad units in its games - which he said was half the developer's monthly revenues.