Normally, I prefer websites over apps, as I do almost everything on my computer, and I never understood the need for an app when a service has a website. But in the case of Friendica, while the website is fully accessible with NVDA, I do find that a web client such as Semaphore does it make it even easier to use. For Android, I originally tried Tusky, since I heard that it was very accessible. But it didn't seem to be with keyboard navigation (I avoid touchscreeens as much as possible). it also wasn't sending me immediate notifications, which is why I downloaded an app in the first place. But then, I read a post in which someone mentioned an app called Pachli, which is supposed to be even more accessible to the blind, as it uses Talkback actions. I installed it, and from what I can tell right now, it's fully keyboard accessible! I went back to Tusky, to see if it employs Talkback actions as well. It does. Both apps also seem identical, though I just started using them, so I can't say. I might keep Pachli, though, since they're truly focussed on accessibility. But really, either one is probably good for those starting out.