PCalc - PCalc is the powerful choice for scientists, engineers, students, programmers, or indeed anybody...
Soulver - Soulver is a software application that functions as a calculator that allows you type a continuous stream of information rather than having to input data into multiple cells.
Numi App - Numi is a beautiful text calculator for Mac.
Calcbot for Apple Watch - Calculate, convert, and split tips from your wrist
Calca - Calca is an advanced symbolic calculator for iOS, OS X, and Windows that's as easy to use as a text editor.
SpeedCrunch - SpeedCrunch. SpeedCrunch is a high-precision scientific calculator featuring a fast, keyboard-driven user interface. It is free and open-source software, licensed under the GPL. Download Documentation Donate .