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 .

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

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.

SymCalc - Symbolic Calculator - Math toolbox for iOS. Advanced calculator features with a tape-like history, not requiring internet...

RealCalc Scientific Calculator - RealCalc Scientific Calculator