It is a calculator app that changes color with a single button and reads out calculation formulas and calculation results.

There is such a function

☆ Calculation results and calculation results read aloud button

☆ Change background and button colors Setting screen

☆Reading voice reading speed and pitch setting screen

☆ Restore formulas and answers from history History button

☆ Select the history calculation results and add them up Total button

☆ ( ), negative numbers (e.g. -1, -4, etc.), decimal numbers (e.g. 0.5, 1.3, etc.)

☆Additional calculation using %, discount calculation, etc.

☆ +/- button to switch between positive and negative numbers * Only numbers are displayed

About changing colors

From the setting screen, you can change the background of the calculator and the color of the buttons. Buttons can be changed for each group, and you can select the button background, button frame, and button text color.

To change the color, check the part you want to change and tap the color sample to decide the color. By checking multiple boxes, you can set the same color all at once. You can choose from the color circle, 16 basic colors, pastel colors, and traditional Japanese colors.

The changed color is displayed with the U button on the left end of the color switching buttons on the calculator screen.

*Reading voice uses the text-to-speech function of the smartphone. Depending on the model and specifications of your smartphone, the app may not work properly.