Pulsedmedia has some decently priced offerings. I’ve used them a few times here and there. Pretty solid. You can probably find something to your liking in the neighborhood of 9 to 10 bucks a month.

You do realize that what borg and restic do is make copies of your data, right?

Floccus

It does not import directly, but you can export and then import on mobile.

I pay the $20 per year and use it as a backup for my local and vps wireguard/pihole installs. Works great and you can use custom local dns records for your Lan if you wish. Plus you can use it on android/ios without any extra software installs.