Real Time Calculator is described as «practical browser calculator that outputs results in real time!» and is a Calculator in the education & reference category. There are more than 100 alternatives to Real Time Calculator, not only websites but also apps for a variety of platforms, including Android, Mac, Windows and iPhone. The best alternative is SpeedCrunch, which is both free and Open Source. Other great sites and apps similar to Real Time Calculator are Wolfram Alpha, Qalculate!, fxSolver and Windows Calculator.
