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Plan, gather, and organize data about astronomical observations.

Converts between several values of different units of measurement.

Shoulder Pro III gives users an in depth look into the body region.

VectorDesigner is a vector drawing application to create fancy vector graphics.

Most powerful emulator of HP 12C RPN financial calculator on Mac.

AcaStat statistical software is an inexpensive and easy-to-use data analysis tool.

Windows

Windows Mac

Beijing YunSi Software Technology Co., Ltd.

MarginNote 3

Free

Study and digest your books with a smart e-reader app.