.

Regarding this, what is the backend of a mobile app?

Backend is the important part of a mobile app that is responsible for data storage, security, and business logic. An app backend is much like a server for mobile apps, as it stores and sorts the important information that the end user does not see.

Subsequently, question is, do I need a database for my app? Not all apps do - many don't store much information at all, and they store it in the app or in a text file. But if you want to use a database, yes - you'll have to learn how databases work in order to use them. And the one you'll be using in an Android phone is a SQL database, so learn SQL, and learn to use SQLite.

Also know, do I need servers for my app?

You don't need a server to host your app. But yeah you do need a server to store scripts and database if your app is using own build web services.

How do you make a backend for a mobile app?

The steps you need to remember while building a backend for the mobile application:

1. Write down the backend and frontend responsibilities.
2. Decide on process endpoints and get them working.
3. Design the API and write it down.
4. Design the database.
5. Get the backend test script ready.
6. Use Programming language to implement the API.