An app is a small computer program. The features are limited, it is being used on the smartphone, tablet or desktop PC. Common applications include image or text processing software and games.
The word is short for "application". Since the establishment of the iOS App Store in 2008, the term is often used interchangeably with "mobile app" – meaning that the applications work on mobile devices exclusively.
A new report in US media has people worried about their privacy as more police forces sign on to use the program. Clearview AI offers facial recognition software that can identify a person even in poor-quality images.
"Carpooling" or "car-sharing" is when you rent a seat in a car to or from someone who's going to the same place as you. Using a smartphone app. Right now, France is in the middle of its most serious transport strikes in years and many people are discovering this way of getting around for the first time. Among them our reporter John Laurenson who is 30 miles outside Paris, hoping to get into town.