By default, the Files app on iOS shows your two storage locations: iCloud Drive and On My iPhone. If you use third-party storage apps like Google Drive on your iPhone, you can also browse files you have stored on those storage services directly in the Files app.
How to Add Google Drive Dropbox One Drive to Files Apps on iOS 16 2022
In this post, we'll explain how to connect other cloud storage services to the Files app on your iPhone, which apps support this functionality, and what you can do by adding a storage app to the Files app on iOS.
The native Files app on iOS not only shows you the files stored on your iPhone, but you can also use it to access files you’ve saved in third-party storage apps you’ve installed on iOS. Currently, the Files app supports a handful of cloud storages, and you’ll need to download the app whose storage you want to add as a location in the Files app.
You can use the following third-party cloud storage apps and connect them to the Files app:
