Angry Birds has managed 30 million downloads on mobile platforms, including 12 million paid downloads on iOS platforms. While it is free to download on Android, the 5 million downloads have worked out well for developer Rovio Mobile.

“By end of year, we project earnings of over $1 million per month with the ad-supported version of Angry Birds,” says Peter Vesterbacka of Rovio.

Vesterbacka notes that Angry Birds has an 80 percent retention rate and the game is played a collective 65 million minutes a day on the iPhone alone.

Source: TechCrunch