Quote:
Originally Posted by Dopedangel
I personally feel a reader app that can sync positions between ios and android and works with calibre companion will sell well. Currently I don't think any epub app has a reading position sync even just for android that is good enough or if its good its very convoluted to set up so most people don't bother.
As you will be the author for both calibre companion and this you should be able to find a way to sync positions without having to upload the whole book somewhere with the same exact filename etc which many app require. With chaley involved with calibre as well you could probably also make a system where lets say I have marked errors that I have found in a book while reading. When I sync calibre with calibre companion those errors are synced with calibre and I can use calibre editor to fix those errors.
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This is the one feature that I think could justify building an app. It is very possible to sync reading positions across devices as long as the book comes from the same calibre library: is the same file and has the same unique calibre ID (UUID). Syncing for different formats could be done but it would need to be based on % complete, which is at best approximate.
It would even be possible to sync annotations and bookmarks, assuming that the reader app supports them.
The downside here is that the reader app would need to be subscription based, not purchase based. We would need to support a separate storage facility for the sync data, which is a continuous expense. The subscription would pay for development and for the network and storage costs.