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 .
Unit Converter Ultimate - A simple, lightweight, Material Design themed unit converter for Android.
Qalculate! - Qalculate! is a multiplatform multi-purpose desktop calculator.
unitMeasure - A sleek unit calculator for android
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.
VATCalculators.co.uk - Free UK VAT calculator. We have created this VAT calculator as a free to use tool for calculating VAT rates in the UK.