The app, which is synchronised to 25 Freeview channels, provides social networking features and show-related bonus content such as quizzes and games.
TVcheck uses the device's camera to establish which channel the user is watching, and relays this information through social networks such as Facebook and Twitter.
Orange debuted the service in France, where it has deals in place with various reality television shows. It is now available for iPhone users in the UK, and is compatible with programming from BBC, ITV, Channel 4, Channel 5 and more.
In the US, broadcasters ABC and FOX have created interactive iPad apps to accompany their respective shows Grey's Anatomy and Bones.
TVcheck is available to download from the UK App Store now. It will be released for other platforms, such as Android, in the future.