Calculator++ - Calculator++ is an advanced, modern and easy to use scientific calculator.
Calculator by Xlythe - Calculator is a simple 4 function calculator.
RealCalc Scientific Calculator - RealCalc Scientific Calculator
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.
PCalc - PCalc is the powerful choice for scientists, engineers, students, programmers, or indeed anybody...