(Self-promo here, but hope ya find it useful...)
After a few months’ break I’ve finally had the time to update my Push 3 Standalone app PushKin - file upload and download is now available so now you can fully manage files on the go w/o a laptop.
(Note that this is an initial version of uploads/downloads and only supports single files for now. Adding support for folders and multiple files is a bit more tricky so that will be coming up shortly in the next release, along with full iPad support.)
Grab it from the App Store for free:
https://apps.apple.com/app/pushkin-stan ... 6475042552
(If any of you are interested in joining TestFlight beta you can do so here https://testflight.apple.com/join/G7HDPFBn - would be happy for a few additional testers! iPad support is now in Beta.)