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Create and publish various diagrams to represent your idea.

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

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

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

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

Organizes and reminds you about important events in your life.

Windows

Windows Mac

Uranisoft

Gravity

Free

Gravity is a program to simulate the path of move for bodies (i.e. objects with mass) altered by the