IP Keypad - Subnet Calculator 3.1

This app is a subnet calculator, providing users with a range of essential features for network administration. It offers a dedicated keypad to facilitate efficient data input, along with pickers for selecting subnet mask and prefix length. With this tool, users can easily calculate various types of addresses, including network, host, and directed broadcast. Notably, the app supports both classful and classless modes, ensuring compatibility with different network configurations.

It is important to mention that starting from version 3.0.0, the app includes the "Special-Purpose" feature, following the guidelines outlined in RFC 6890 (April 2013). Prior to that, in versions 2.3.2 and earlier, the app displayed the "special use" functionality based on RFC 5735 (January 2010).