Catch22 Supercalc is described as 'Supercalc is an expression calculator for Windows. An expression calculator gives the user the ability to type an equation exactly as it is to be evaluated. This allows for much more intuitive use of the calculator' and is an app in the education & reference category. There are more than 25 alternatives to Catch22 Supercalc for a variety of platforms, including Windows, Android, Mac, Android Tablet and Linux apps. The best Catch22 Supercalc alternative is Wolfram Alpha, which is free. Other great apps like Catch22 Supercalc are SpeedCrunch, Numbat, Google Calculator and Windows Calculator.