The built-in Files app on your iPhone has only gotten better since it was introduced in iOS 11, with small improvements after each new iOS version. You can manage files on your internal storage as well as in iCloud Drive, but one of the best features is being able to manage media and documents from all of your cloud storage accounts in one place. Almost all file-hosting services can be connected to the Files app. At first, it was just Box, Google Drive, and Dropbox, but in iOS 13, that's just...
