9Cal

Gorgeous, skinable desktop calculator

An efficient utility tool that gives you live conversions on your home screen

Synchronization software that lets users of Android 4.4 and above cast their screens to Windows

Quality math program that includes a good calculator and other features

Learn to calculate your CO2

Judy's TenKey, winner of the Ziff Davis 'Desktop Accessory of the Year,' enables you to work faster and more reliably

Figure out your students' GPA - far easier than working by hand