After months at beta stage, the application eventually launched in November 2009 exclusively on the App Store for the iPhone . In January 2010, support for BlackBerry smartphones was added, and subsequently for Symbian OS in May 2010 and for Android OS in August 2010. In August 2011 a beta for Nokia's non-smartphone OS Series 40 was added. A month later support for Windows Phone was added, followed by BlackBerry 10 in March 2013.  In April 2015, support for Samsung's Tizen OS was added.  An unofficial port has been released for the MeeGo -based Nokia N9 called Wazapp ,  as well as a port for the Maemo -based Nokia N900 called Yappari .