I went through this migration last year. A few things that helped:
Calibre is the escape hatch. Converts everything to EPUB. Even if you don't use it day-to-day, it's the best tool for getting your library out of Amazon's format.
Public domain catalogs are huge now. Standard Ebooks, Internet Archive, Gutenberg - tens of thousands of well-formatted free EPUBs. Most people don't realize how much is out there.
For actually reading on macOS/iOS, I ended up on BookShelves (https://getbookshelves.app) after trying a few options. Native app, reads EPUB and comics, has Calibre wireless sync, and browses those public domain catalogs directly. Books are just files on your device - no account, no cloud lock-in.
Honestly the hardest part was realizing how much of my library I'd been renting rather than owning.
Calibre is the escape hatch. Converts everything to EPUB. Even if you don't use it day-to-day, it's the best tool for getting your library out of Amazon's format.
Public domain catalogs are huge now. Standard Ebooks, Internet Archive, Gutenberg - tens of thousands of well-formatted free EPUBs. Most people don't realize how much is out there.
For actually reading on macOS/iOS, I ended up on BookShelves (https://getbookshelves.app) after trying a few options. Native app, reads EPUB and comics, has Calibre wireless sync, and browses those public domain catalogs directly. Books are just files on your device - no account, no cloud lock-in.
Honestly the hardest part was realizing how much of my library I'd been renting rather than owning.