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Create and publish various diagrams to represent your idea.

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

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.

Organizes and reminds you about important events in your life.

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

Windows

Windows Mac

Ben Blevins

Updraw

Free

Draw familiar shapes and add constraints to solve distances and angles.