Ghostnote - Add notes to anything.
Dropbox Paper - A collaborative document-editing service
Somnote - More often than not, note-taking is a pressing, off the cuff movement that requests a quick and productive approach.
Evernote - Bring your life's work together in one digital workspace. Evernote is the place to collect inspirational ideas, write meaningful words, and move your important projects forward.
Apple Notes - Apple Notes functions as a service for making short text notes.
Workflowy - A better way to organize your mind.