FE File Explorer Pro is a file management application designed for iOS devices. It offers advanced features for managing files on your iPhone or iPad, including accessing files on various cloud services, a built-in FTP server, and more. The "Pro" version likely offers additional features compared to the standard version, such as increased storage support, more advanced file editing capabilities, and possibly an ad-free experience. IPA Files and Installation The ".ipa" extension refers to the file format used for iOS applications. When you download an app from the App Store, it comes in .ipa format, though users typically install apps directly through the store without dealing with the file format directly.