Negative Calculator is a free calculator app developed by Pluribus Web LLC for Android devices. As the name suggests, it is a calculator with a focus on negative numbers. The user interface is straightforward and easy to navigate, making it suitable for anyone who needs a quick and reliable calculator.

The app includes all the essential functions of a calculator, such as addition, subtraction, multiplication, and division. In addition, it has a negative and positive button (+/-) for quick number inversion. Another useful feature is the inverse (1/x) button, which allows users to calculate the inverse of a given number.

Overall, Negative Calculator is a simple and effective calculator app that gets the job done without any unnecessary frills. It is perfect for those who need a reliable calculator for everyday use.