For the people coming in asking what app for Lemmy. You don't need it. Lemmy is great on a mobile browser.
The only reason why we all used third party apps for Reddit, is because their app and website is abhorrent trash. It's great to have a choice, but Lemmy's website is smooth to use. I know it's mind blowing not to use a app for everything in 2023 but Lemmy just works.
I could never log in to any of the Lemmy servers I tried using Firefox on mobile. All I'd get is an endlessly spinning circle. No error message or anything... just the online equivalent of the middle finger. Finally I installed Connect for Lemmy and now I'm at least able to log on to Lemmy World.
Kbin, conversely, has proven to be amazing on mobile Firefox.