What are /r/collanote's favorite Products & Services?

From 3.5 billion Reddit comments

I completely hear all your viewpoints. I think the fact that Collanote is built by one person and is free (I would pay a one off fee for it if it further supported development) is a great achievement.

I use Collanote, Things3 and Obsidian in my work flow with the occasional Walling.app thrown in.
I used to subscribe to Notability but I just didn’t get on with it and not sure why.