The backend is a necessary part of a mobile app that stores, secures, and processes the data. A backend app is like a server for the users to sort the required information. One can say that it refers to the activities that happen behind the scenes when you are performing a task on an app.
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A backend allows you to implement functionality such as backing up user data to the cloud, serving content to client apps, real-time interactions, sending push notifications through Google Cloud Messaging for Android (GCM), and more.26 Haz 2013
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