"c++ faq" windows phone app developed by ' Gupta Information Systems ' is purely for information purpose. It only let user know about C++ programming language. The app uses contents available from internet as a public information. The usage of contents by the app has no legal business from company and various other companies if they are using the same . Therefore the app doesn't have Any copyright with the app content that it is publishing. Contents has been written and copied from various sources. For any further details please write to us at " support@guptainformationsystems.com "