OmniFocus VS EssentialPIM

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.

Todo.txt - Track your tasks and projects in a plain text file, todo.txt. A todo.

Todoist - Todoist is a to-do list that helps you get organized, at work and in life.

Task Coach - Task Coach is a simple open source todo manager to keep track of personal tasks and todo 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.

Strikethru - Strikethru is a kind of to-do list notebook for managing work lists and staying updated with the important tasks.