IPv4 Calculator is a free Android application developed by colucci-web.it, designed to assist network administrators in calculating IPv4 subnets. It offers a range of features that make it a valuable tool for network professionals.

The application is straightforward and easy to use, providing a simple interface for users to enter their IP address and subnet mask. The app then calculates the network address, broadcast address, and available hosts. Additionally, it provides a subnet mask cheat sheet for quick reference.

Overall, IPv4 Calculator is a must-have tool for network administrators who need to calculate subnets quickly and efficiently. Its intuitive interface, accurate calculations, and subnet mask cheat sheet make it a valuable addition to any network professional's toolkit.