Files is a file management app developed by Apple Inc. for devices that run iOS 11 and later releases of iOS and devices that run iPadOS.

What is the Files app used for?

Use Files by Google to free up space on your device and browse and share your files. Files by Google works on Android version 5.0 and up. If you don't have the app, you can download it from the Play Store.

Do I need the Files app on my iPhone?

You don't have to use the Files app. ... But, if you do want to manage files, you can open the Files app. By default, it will provide access to files stored in your iCloud Drive and perhaps local files “On My iPhone” or “On My iPad”. You'll only see the local files option if you have an app installed that enables it.