Inoreader. Has all the features of Feedly (that I care about) at half the price. I switched recently after using Feedly for years and so far I'm very happy with it. Migration process was very painless.

On mobile, it has a killer feature. For the feeds that only give a short snippet and then require you to go to the site (i.e. ArsTechnica), you can just pull the page down and release. Inoreader will load the full article without requiring you to go to the website.

I also use it to subscribe to all the newsletters to keep my mailbox clean and Twitter users that I want to monitor but not follow on Twitter itself.

If you don't want an app/want to control your data, you can use other services that can be self-hosted service too (miniflux, ttrss, etc.). It will handle syncing and often has a fine web client, or else compatible with most RSS readers through e.g. Fever API. Miniflux has hosting they provide if you don't want to self-host. Been using miniflux for a few weeks and enjoying it, but I know ttrss and others are popular too.

Sure, you can use Feedly* as a sync service and then use Mac and Android apps that use Feedly as their back-end.

https://feedly.com/apps.html

* I assume there are other ways to skin this cat, but this is what I do.

Feedly for the third time :) Been using it for years. Works fine on desktop/mobile, synchronizes great, has a bunch of useful features (bookmarks, tags, IFTTT integration, etc)

Newsblur

Reeder on Mac, Feedly on Android. Works for me.

Feedly!