OpalCalc VS Calculator by Xlythe

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 .

Console Calculator - Console Calculator is a powerful calculator with a simple console interface.

Qalculate! - Qalculate! is a multiplatform multi-purpose desktop calculator.

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.

HEXelon MAX - HEXelon MAX is a science calculator. It solves math expressions like: Sin(Pi)-Root(-8;3)+3.

Numi App - Numi is a beautiful text calculator for Mac.