Since nobody else replied, I'd like to broaden the scope of the question a bit, by getting a little creative.
Since there's no eBook app that does what I want natively, what about treating this as a simple file sync problem, putting aside the fact that the files in question are eBooks?
Basically I see two options here:
- An app for the Mac that can use the File Sharing feature (similar to iTunes), but which supports automatic syncing between an iPad app's files and a folder on my Mac. Anyone knows of one?
- Lastly, a path I'd rather not take, I could use a cloud storage solution like OneDrive or Google Drive to sync my books to a supported reader (sounds like KyBook 3 would do the job). If anyone has gone down this path, with one of these two services (I have storage space avalable on both), could you report on your setup, which app you use, how well it works, etc.?