Web search shows that a bunch of Android clients exist for Rclone: the project's wiki points to ‘RCX’. will have to try it and see.
I dream occasionally of an encrypted file-level-Raid-5 made from free storage that the services have already bestowed on me.
I use Rclone on my Android device through Termux[2] which works pretty well. Termux includes Rclone in its repo[3]. I just set it up to `serve webdav` then access it through my file browser app which includes WebDAV support.
* [1] https://github.com/rclone/rclone/issues/1647
* [2] https://github.com/termux
* [3] https://github.com/termux/termux-packages/tree/master/packag...
I've thought about including Cryptomator support in the app by reusing the java libaries, but licensing issues make that hard. Support in rclone itself would be really great.
BTW: RCX exposes serve as well, and will get Storage Access Framework (SAF) support in the near future. When it works, SAF seems like magic.[1]
I also have this RAID idea, because the free offers are a marketing tool, and providers have no problem shutting off rclone access even for paying customers (happened with Amazon Cloud Drive, Yandex Disk).
There is currently a beta of new remote type "multiwrite union" (RAID-1 style). But for RAID-5, storage is just too cheap - some providers are as low as $5/TB-month.