Writing Apps: The good, the bad, and the confusing

Several blogs either posts or comments have mentioned writing apps. Evernote and a few others keep coming up, but I can’t seem to figure out what is so special about them. Also I get emails from microsoft promoting onenote or onedrive, whatever they call it, and google doc emails. I consider myself pretty techy but I can’t seem to find clear purposes or function of these programs.

Anybody out there use any of this stuff? Drop me a comment if you do, because I must be missing something. Cheers on a Thursday night, james