What is an App?

Definition: 
Apps is an abbreviation for application. An app is a piece of software. It can run on the Internet, on your computer, or on your phone or other electronic device.

Google refers to their online services as apps, but they also sell a specific suite of services known as Google Apps and have an application hosting service called Google App Engine.

Also Known As: applications, software, programs

Common Misspellings: ap, aps

Examples:
You can download iPhone apps from Apple App Store and Android apps from the Android Market.