Somewhere in your Google Drive there is a folder of EPUBs. You know roughly what is in it. You have opened it twice this year, both times looking for something else. Here is how to turn that folder into something you actually use.
It is rarely one source. A Calibre export that got backed up to the cloud, a download from a store that does not lock its files, a personal digitised collection, something a friend sent in 2019 that you fully intend to read.
The common thread is that they are books you already own and are already allowed to read. What they have been missing is a way to hear them without first doing a small IT project.
This is the part that matters. You point PhonoLeaf at one folder, once. Everything in it becomes listenable, and so does everything you put in it afterwards.
No re-picking, no re-importing, no remembering which of your books you have "added" and which you have not. Drop a file in next March and it will simply be there.
PhonoLeaf's access to your Drive is read-only. It can see and download the files in the folder you choose, and that is the whole list. It cannot create, edit, move or delete anything, which means it also cannot tidy up, and nobody is sorrier about that than us.
The books themselves go from Google straight to your device. The voice is generated there too, so the text of what you are reading is never sent anywhere to be turned into sound.
It makes no difference whether the EPUBs came from Calibre, a bookstore export, or a decade of scattered downloads. If they are DRM-free and in the folder you connect, they are readable.
No. PhonoLeaf reads them from wherever they already sit in your Drive. Nothing is copied to another server.
It appears in your library on its own the next time PhonoLeaf checks the folder. There is no re-import step.
No. It requests read-only access, which can view and download files but cannot modify, move or delete anything.
PhonoLeaf reads the EPUBs directly inside the folder you connect, so point it at the one holding the books you actually want read.
Seven days free, and about a minute to connect it.