Watch as the answer turns out to be stupidly simple, but I'm stumped. Is it possible to sync reading progress from the computer to iOS, or does the reading progress only sync iOS->computer? For me right now it's only syncing iOS->computer (so any progress I make reading on the computer doesn't show up on my iOS devices), and I'm not sure if that's a bug in my devices or the nature of the feature.
Addind bidirectional sync has a lot of implications, f.e: conflicts resolution. And I didn't have time to implement it, but I know that it is something necesary.
YACReader
