Does Polar support audio books, .epub files, etc? My impression is that its mostly intended for .pdf files and HTML pages, and isn't meant to be a drop-in repla

Does Polar support audio books, .epub files, etc? My impression is that its mostly intended for .pdf files and HTML pages, and isn't meant to be a drop-in replacement for Calibre at all. With that said, the annotation support and integration with Anki both look like really cool features. [Edit] Yeah, after downloading, it appears that Polar only supports .pdf files and HTML pages. I tried to add .doc[x] and .epub files, but neither appeared to be supported. Additionally, Polar uses cookies and data collection for usage statistics and doesn't support disabling them. I don't see how this app is even remotely a replacement for Calibre and certainly doesn't solve OP's problem; it does have a nicer UI than Calibre though, if you can excuse the large and uncloseable (bright gold) banner asking for monthly donations that takes up the top of the desktop app.