CrossGL Surface Calculator for Windows

CrossGL Surface Calculator is a free, Windows-based program developed by MicroInvention. As a standard calculator, it offers a real-life, fully resizable interface that can be freely adjusted without losing any quality. In addition to its calculator functionality, it also includes a built-in currency converter. While it only supports one currency exchange at a time and requires manual entry of exchange rates, it offers more features than the default Windows Calculator. Users can also customize transparency, digit style, and other details to suit their preferences.

The interface of the CrossGL Surface Calculator resembles a real-life calculator, making it visually appealing on the desktop. However, the buttons to access the configuration menu, resize, rotate, or close the app are slightly hidden, requiring users to hover their mouse over the calculator's corners to reveal them.