The IP Subnet Calculation app is like a super handy calculator that gives you all the juicy details about Internet Protocol version 4 and version 6 subnets. Its like having a subnet expert in your pocket! With this app, you can find out things like possible network addresses, usable host ranges, subnet masks, IP classes, and more. Its super useful for both IP v4 and IP v6 calculations and getting detailed IP information. Just plug in the numbers, and voilà, all the subnet info you need is right there at your fingertips!