Heyzap has launched a new check-in app for mobile games for Android phones, with an iPhone version planned for future release. Heyzap says that alpha testing of the new app has generated over 250,000 mobile check-ins in over 3000 games. The app is designed to drive social discovery of mobile content by letting users check-in to games they’re playing, which helps others discover new games. All of Heyzap’s 1.6 million users can now check into any Android games. Over 20 Android games have directly integrated Heyzap’s SDK.