Blippar
From Tardis Wiki, the free Doctor Who reference
Blippar was a phone app launched in 2013.
The app allows for a page (carrying the Blip it logo) to be scanned on a phone. It takes the user to additional content or added effects. The technology was recently used in the Radio Times Doctor Who 50th anniversary issue and has been extended throughout other magazines published by the Immediate Media Company London Limited, including Doctor Who Adventures from issue 334 onwards.
