I have been using it on the iPad for years and it really works great. It connects to every kind of local and cloud storage you can imagine at the same time. No need for jiggling with many different cloud apps. Makes working with or backups of important files real easy. It's so much better than the crappy Apple files app. It can even play music and video. Really recommend this one.
FileBrowser is available for download on the iOS AppStore.
Read more FileBrowser reviews