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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.

Organizes and reminds you about important events in your life.

Create and publish various diagrams to represent your idea.

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

Windows

Windows Mac

IORodeo

colorimeter-v04

Free

A scientific colorimeter kit for educators, students and DIY scientists.