Not to derail, but does anyone have a suggestion for the same, but for audiobooks?
My SO's Honda doesn't support playlists or bookmarks, and most of the apps we've tried either don't scale well for large libraries or are built for podcasts, so something simple and standalone with those features would make her happy.
Not a full solution, but once upon a time I had a Sandisk Sansa e280 that I jailbroke with Rockbox, and it appears to have manual bookmarking
https://download.rockbox.org/daily/manual/rockbox-sansae200v...
"Note: Bookmarking only works when tracks are launched from the file browser, and does not currently work for tracks launched via the database. In addition, they do not currently work with dynamic playlists."
My SO's Honda doesn't support playlists or bookmarks, and most of the apps we've tried either don't scale well for large libraries or are built for podcasts, so something simple and standalone with those features would make her happy.