Handy app but only 1 year and dosent seem to know the free space left on webdav servers, where as CarotDav does. Worse, I couldnt upload a file because it says Ive run out of space, most likely because of the previous problem (but then RaiDrive doesnt know the space left and I can still upload). Personally Ill be sticking with the two free apps, CarotDAV and RaiDrive (this one is just like this app (mount cloud drives) but totally free for ever).
https://community.cryptomator.org/t/webdav-urls-of-common-cloud-storage-services/75
Handy list for webdav.