Could you take BookFusion for a spin and let me know what you think?
BookFusion allows you to upload and manage your eBook collection across Android, iOS and Desktops. All your eBooks, bookmarks, highlights, notes and reading progress are always synced across all devices.
Right now, I support sharing via my own Ubooquity/elibsrv servers which run OPDS as well. OPDS works well with Kybook, which is what I run currently on iOS.
Unless this supports an OPDS server, I don't see myself using this long term, though. OPDS on Kindle (with KOReader) makes my life so much simpler (I can browse my entire collection on the Kindle).
Right now, I support sharing via my own Ubooquity/elibsrv servers which run OPDS as well. OPDS works well with Kybook, which is what I run currently on iOS.
Unless this supports an OPDS server, I don't see myself using this long term, though. OPDS on Kindle (with KOReader) makes my life so much simpler (I can browse my entire collection on the Kindle).