An online app is an application that requires an internet connection for some or all of its functionality. It can retrieve information from remote databases, synchronize data, process requests, access cloud services, and display content stored on external servers. Many mobile applications combine online functionality with locally stored data to provide users with continuous access to essential features.
An internet connection allows a mobile app to work with current information and exchange data with external systems in real time. This is important for features such as shared databases, payments, bookings, frequently updated content, and synchronization between multiple users or devices. Understanding which features require connectivity also helps businesses decide what functionality should remain available when a user goes offline.
A booking application retrieves current availability from a database when a customer opens the schedule. An internet connection allows the app to display updated information and send the customer’s booking to the system.