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.
Knotable - Cut the noise out of busy email threads
Day One - A simple journal application for the Mac, iPhone, and iPad. AboutTo learn more about Day One, see these two excellent reviews . PublishPublish is not available in Day One 2.
Scrapbox - A new style of note-taking that lets you create, discuss, and learn together in one self-organizing space.
Standard Notes - A safe place for your notes, thoughts, and life's work
Google Keep - Capture notes, share them with others, and access them from your computer, phone or tablet. Free with a Google account.