RealCalc Scientific Calculator - RealCalc Scientific Calculator
Calculator++ - Calculator++ is an advanced, modern and easy to use scientific calculator.
makina - The only gesture-based calculator on the Play Store. makina |m??ki?n??| Noun
Qalculate! - Qalculate! is a multiplatform multi-purpose desktop calculator.
CalcTastic Scientific Calculator - Scientific Calculator with Fractions, Complex Numbers and RPN Support
HiPER Scientific Calculator - Scientific calculator with up to 100 digits of significand and 9 digits of exponent.