Apart from normal editors such as LibreOffice or Word, do you use programs specifically designed to keep track of the characters, places and chapters of your novels or stories? I have never felt the need. I have found OmniaWrite, for example, but I have not tried it yet. Does anyone use it or similar ones? Does it really help?
I would have a look at Manuskript.
However, I tend to write with whatever’s in front of me. Currently using WordGrinder for one thing, Joplin for another, and Pages '09 on my sixteen-year-old MacBook.