Social gaming network PapayaMobile's Social Game Engine and Social SDK are now available on iOS. "While we've experienced great success and growth by mainly focusing on the Android platform since our launch in 2008, we feel that now is the right time to expand our offerings to the iOS market," said CEO Si Shen. "Both iOS and Android are here to stay and the release of our iOS toolset allows our developers to maximize user engagement and distribution through our cross-platform social graph." The beta release of the Social Game Engine allows developers to build games for both iOS and Android from one code base, while the Social SDK makes it easy to connect gamers across both platforms. PapayaMobile was founded in 2008, and in August announced user numbers of 25 million.