What are some alternatives?
WorkFlowy - WorkFlowy is an organizational tool that makes life easier. It's a surprisingly powerful way to take notes, make lists, collaborate, brainstorm, plan and generally organize your brain.
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.
Dynalist - Dynalist is a web app that lets you break down and organize your thoughts in the format of lists.
OneNote - Get the OneNote app for free on your tablet, phone, and computer, so you can capture your ideas and to-do lists in one place wherever you are. Or try OneNote with Office for free.
Checkvist - Checkvist is a tool to create and share checklists, plans, and outlines.
Standard Notes - A safe place for your notes, thoughts, and life's work