I really enjoyed Libro.fm, it works the same as Audible but you can either use their app or download the book files, and I think they’re DRM free.

Also it’s really cool because you get to choose a local book store to support and I think they share a part of what you spend with them.

I have it enabled, I used to love it in Apollo and was really happy when you released it in Voyager. Thanks for all the great work by the way!