Calculadora XXL is an educational and reference tool designed specifically for users with vision problems. Featuring a high-contrast blue background and large yellow numbers, it enhances visibility for better usability. This calculator supports basic arithmetic operations and includes a built-in cash register and operations register, making it a versatile tool for everyday calculations.

Additionally, Calculadora XXL offers a unique auditory feature that names numbers and operations when the user hovers the mouse pointer over them. This function, along with keyboard shortcuts that allow for mouse-free operation, ensures that all features are accessible to users with varying degrees of visual impairment. The program is available for free on the Windows platform.