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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.

Organizes and reminds you about important events in your life.

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

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

Create and publish various diagrams to represent your idea.

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Acorah Software Products

TaxCalc

Free

You can see your tax liability as you progress through the program