Never too late if it makes sense, although it's different enough if you ask me

Disagree. You definitely need to reconsider the name. It was my first reaction as well.

This very much tells me you need to change the name.

It might be difficult now, but it will only get more difficult as time passes.

In another comment you said you are relaunching your website soon. That’s a perfect time to either rename or pivot to ereader tools. :)