Hi! I’m the developer of Bound, an iPhone audiobook app. My app supports DRM free audiobooks with the ability to save your place and save individual bookmarks. Please check it out if you are interested:
https://bound.timbueno.com/
Been using Bound for a couple of years, it's great. CarPlay is solid and it has upload options for any scenario. I even use https://openaudible.org on my DRM books to play them on Bound, that's how much I appreciate the clean interface.
Thank you! This is a very attractive reading app. I think I'll purchase this when Im finished with my current book. Is there a way to export the list of bookmarks to a file or email or something? I usually have to manually type them all up with other apps