SymCalc - Symbolic Calculator - Math toolbox for iOS. Advanced calculator features with a tape-like history, not requiring internet...
Parsify Desktop - Extendable calculator for the 21st century ⚡
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.
Daysfrom.Today - Easily calculate the number of days, weeks, months, and years from today with our simple online calculator. Quickly find out how much time has passed or how much time is left with a few clicks. Try it now!
Caligator - An open-source calculator & convertor that thinks like you