VideoLAN @videolan App Stores were a mistake. Currently, we cannot update VLC on Windows Store, and we cannot update VLC on Android Play Store, without reducing security or dropping a lot of users… For now, iOS App Store still allows us to ship for iOS9, but until when?
That’s right. Fdroid the app is just a program that accesses repositories. It’s not even the only one, Aurora has a similar version of their own called Aurora Droid.
Fdroid the repo is a repository of FOSS apps maintained by the Fdroid team with apps they’ve reviewed and compiled themselves, to provide an element of trust that you might not get from every random developer.
There’s no fool proof way of handling app trust other than developing your own understanding of the code. Otherwise you have to trust someone. Fdroid seem pretty trustworthy, more than the big corporations, and more than many unknown small time developers - however you can get app updates quicker direct from the developer, through the Fdroid app, if you’re willing to trust them.