Joplin - Joplin is a free, open source note taking and to-do application, which can handle a large number of notes organised into notebooks. The notes are searchable, tagged and modified either from the applications directly or from your own text editor.

Startup Notes - Most actionable advice from each Startup School speaker

Reminisce Journal - Reminisce Journal is a free iOS and Android app that helps you to capture live moments, daily activities, thoughts, ideas and travel logs, etc.

Whimsical - The visual workspace for teams.

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.

Notion - All-in-one workspace. One tool for your whole team. Write, plan, and get organized.