I'm using Papers 3 right now, and it is fairly buggy. I'm not a fan of switching to a subscription model (especially as I'm not an academic, which makes it too

I'm using Papers 3 right now, and it is fairly buggy. I'm not a fan of switching to a subscription model (especially as I'm not an academic, which makes it too expensive), so I was looking for something else. I like Zotero, but the lack of an ipad client is annoying. The file plugin requires more forethought than I really like. Bookends having a mobile client was one of the attractive features. What is the work that it takes to get set up?