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Free open source todo manager. It grew out of frustration about other programs not handling composite tasks well.

Create and publish various diagrams to represent your idea.

It is designed for Mac and iPhone users to make lists and stay organized.

Momentum is a powerful habit tracker that boosts willpower and helps you reach your goals.

Find out how millions of users worldwide have revolutionized the way they think.

Organizes and reminds you about important events in your life.

Windows

Windows Mac

Gingko Inc

Gingko

Free

Write technical documentation, project specifications, science papers etc.