The Arsse does not at this time have any first party clients. However, because The Arsse supports other protocols, most clients built for NextCloud News and Tiny Tiny RSS are compatible with The Arsse. Below are a few that we personally know of and have tested with The Arsse.
Name OS Protocol Notes
Nextcloud News Tiny Tiny RSS
CloudNews iOS

Very bland looking application, but it functions well.

FeedReader Linux

Excellent reader; one of the best on any platform.

Fiery Feeds iOS

Rentalware - For the software to be usable (you can't even add feeds otherwise) a subscription fee must be paid.

Currently keeps showing items in the unread badge which have already been read.

## Known Incompatible Clients
Name OS Protocol Notes
Nextcloud News Tiny Tiny RSS
tiny Reader RSS iOS

Does not support HTTP authentication.