app
noun [ C ]
uk/æp/ us IT
abbreviation for application or application program: a computer program that is designed for a particular purpose:
After plugging the unit into your wired network, you run a little app on your PC that searches the network to locate the camera.
See also
killer app
IT, COMMUNICATIONS
abbreviation for application or application program: a small computer program that you can download onto a mobile phone:
There are apps for everything, from learning Swedish to booking cinema tickets.