Hacker News Reader

I also use https://newsblur.com/ . Other good options was http://theoldreader.com/ but after a time I switched to newsblur.

NewsBlur is awesome, it's supported by a number of frontends (including Reeder) and has a very capable web app and a nice Android app. I've also used the iOS app from time to time, and new features on all of these are still rolling in from time to time.

The dev is responsive on Twitter (just today we debugged some issues) and the entire thing (including both iOS and Android apps!) is open source, so if they decide to discontinue it you could stand up your own local copy.

Hopefully all the premium members make it a little less likely that that'll happen.

I'm also a happy NewsBlur premium user, and RSS is the only way I could keep up with all the blogs I follow. In fact, I'm reading HN via its RSS feed right now...