Portuguese). Subsequent upgrades included additional chapters, translation into two more languages (Chinese and Japanese) and support for retina display. A dedicated version for iPhone was released in December 2011. In June 2013, a version of the app for Microsoft Windows was released as a result of a collaboration between the developers and Intel with the purpose of showcase the capabilities of Windows 8. Reception and awards Upon release, Back in Time was featured in the App Store worldwide and rapidly became a success, reaching the top sales of iPad book apps in 38 countries. The app received generally positive reviews from the users (4.8/5.0 rating score on the App Store) and press. Back in Time was featured by The New York Times for the top 10 apps of the year. The app was selected by the American Photo Magazine for the top 10 Photo eBooks of the year, distinguished by BBC as one of the 10 best history apps, and was recommended by several education publications. In 2012, Back in Time won a World Summit Award (UN based initiative) for Learning and Education. References External links IOS software Educational software Educational technology 2011 software