This app is an easy-to-use calculator. The calculator supports all basic functionality for daily-life situations. As an addition to a normal calculator, this calculator can be styled to any theme. The app contains several themes, but the user can also create its own theme! The calculator is very intuitive. The entered equation is always shown, together with the intermediate result. All the basic functionality is supported, such addition, subtraction, multiplication, and division. Also, percentage values and parentheses are supported. As mentioned before, the user can create it's own theme. The user can choose a background image from the gallery. Also, the text colors can be chosen by the user. This makes sure that the text is always clearly readable. As a summary, the calculator supports the following. • Addition, subtraction, multiplication, and division. • Percentages. • Parentheses. • Standard themes. • Custom themes.