Right now, I use both for note taking. Which one I use just depends on the situation.

I prefer Google Keep for speed; besides Apple’s native Notes app, it feels the fastest to get a new note open and get started before whatever I was thinking about has disappeared from my head. I also like it for the ability to set a reminder within the note. That said, I really got hooked on Google Keep when I had a Chromebook and a Pixel phone; after thinking about it further, Apple’s Notes may end up replacing Keep as it is now the fastest option (and the default), with a Control Center shortcut on my phone, the lock screen Pencil tap on my iPad, and Siri support to dictate a note.

I still prefer OneNote for longer note taking because I can do notebooks and tabs within those notebooks, which helps me organize my notes better for projects, and which I personally find easier to use than tags or labels (mostly because I forget to add a tag or label).

I used to use Evernote for the same reason I use OneNote, and I still really like it, but I disliked having to pay to have Evernote available on more than two devices, and I like OneNote’s extra layer of tabs/sections within each notebook for further organization, so while it is definitely installed on my Mac, it is primarily there in the event I need to access some really old notes.

Now that I’m all in on one ecosystem and on the verge of a new project, I may end up reevaluating which note-taking app(s) works best for my workflow.