The inventor of DBD Soft created the Android app Skull Calculator. The first Google Play release took place four years ago, while the most recent one was made three years ago. On Google Play, this app has been downloaded 249 times.

This item is an app in the productivity category. A calculator has standard functions but what's unique about it is the design. This calculator app provides simple and advanced mathematical functions in a beautifully designed app. It can also perform basic calculations such as addition, subtraction, multiplication, and division as well as do scientific operations such as trigonometric, logarithmic, and exponential functions.