Mobile App
Simple Explanation
A program made to run on a smartphone or tablet. Apps help you do particular tasks, such as messaging, banking or checking the weather. Some need internet access; others work partly offline.
Technical Explanation
A mobile application is software designed for a mobile operating system, distributed through an app store or another supported channel. It can use device features subject to permissions.
Business Use Case
A restaurant uses a mobile app to let customers browse menus and place collection orders.
Real-Life Example
You open a transit app to see when your next bus is expected.