Facial scan app wants to get to know you
6 December 2016 Last updated at 09:59 GMT
Augmented reality app Blippar has been updated to recognise faces as well as objects.
The app can now identify up to 70,000 public figures by looking at images, video or an actual person.
The BBC's Rory Cellan-Jones raised privacy concerns with the company's co-founder Omar Tayeb.