Calculator with Sound is an Android app developed by SummerLights that provides a unique and enjoyable way to calculate. The app produces different sounds when you touch the buttons, making it easier to recognize which button you are pressing and transforming calculations into a fun experience.

Aside from the innovative touch sounds, Calculator with Sound also features useful functions for shopping such as calculating discounts and taxes. The app allows you to quickly calculate discounts by touching 12 buttons with discount percentages, displaying both the final price and the amount of money saved. You can also input the final price into an expression and continue to calculate. Calculating taxes is also made easier with just one click, and the app displays the amount of tax for your convenience.

Calculator with Sound also has a history feature that saves your expression, the date, and time each time you touch the "=" button or "TAX" buttons. You can input expressions from the history into the main screen and continue to calculate, delete the history one by one, delete the entire history, copy expressions to clipboard, and share expressions. The app also offers several settings such as tax rate, way of rounding the amount of taxes and discounts, and an option to keep the screen on.

Overall, Calculator with Sound is an impressive and practical calculator app that is both fun and useful.