CrossCalc is day to day Scientific Calculator that can be used on Windows devices, Android phones, tablets, iPhones, iPad, Mac and Linux. It asks for no permissions and does not show any ads. The User Interface is simple and easy to use with functions that are used in everyday life. It also provides many advanced functions provided by modern Scientific calculators. # Keyboard input The mouse, keyboard and touchpad can all be used to operate the Calculator. # Dual mode The calculator can be used in two modes: Interactive mode and Direct expression input mode. ## Interactive mode The interactive mode is the same as any regular calculator that responds to the pressing of buttons for calculations. ## Direct expression input Alternatively, complex expressions can be composed using brackets, functions and operators, and evaluated. # Responsive UI The user interface automatically re-arranges the function pads according to space available on the screen, be it a mobile phone, tablet or desktop monitor. # Functions The Cross Calculator supports around 70 functions. Detailed description and usage of each function can be found at https://github.com/siara-in/CrossCalc. # Issues If you find any issues, kindly report them at https://github.com/siara-in/CrossCalc/issues.