I selfhost FreshRSS and connect to it with Reeder on iOS.

I haven’t. I just installed it to check it out, but I don’t even see a freshRSS sync option.

Ok it works, I tried it a little bit. I like the swipe left/right to get to move around and get options, but I’m not a fan of the way groups/categories work. On Reeder I get the classic folder structure: each feed is inside the category. On Unread I can select the single feed (but they’re all unorganized) OR I can select the category (in that case the feeds are mixed by default, or they’re ordered by website but in that case I have to manually scroll through all posts of other websites of the same category before I can get to the one I want to read). I don’t know if I explained myself, but I basically find it quicker to get to the content I want using Reeder’s way. In the same category/topic I might have feeds that I check daily and other ones that I barely check every now and then, and that’s not a problem with Reeder (I do a weekly “mark all as read” if the backlog gets too long), while I feel it gets a little hard to do the same thing on Unread.

Anyway, that’s how I browse feeds. If you like Unread, go on with it. Sorry for the wall of text.