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.
Calculator by Xlythe - Calculator is a simple 4 function calculator.
Calcbot for Apple Watch - Calculate, convert, and split tips from your wrist
Console Calculator - Console Calculator is a powerful calculator with a simple console interface.
CALCU - CALCU is a simple, yet beautiful and powerful calculator.