The ClassWiz Calc App is a free mobile app from CASIO COMPUTER CO. LTD. that lets users use the functions of genuine Casio ClassWiz Series scientific calculators on their smartphones or tablets. Available for Android 9 or later, the app allows users to perform various calculations free of charge, including fractions, trigonometric functions, logarithmic functions, statistical calculations, spreadsheets, and matrix calculations. The app works just like a physical ClassWiz calculator and offers an intuitive UI for ease of use. The app also allows users to connect to ClassPad.net for graph display functions. This app is an excellent choice for students, teachers, engineers, and anyone who needs a reliable calculator for their daily calculations.