iPv4Stuff!LITE is a lite version of the iPv4Stuff!PRO - a pedagogical tool that can be used to teach or learn about IPv4 addressing, including basic ANDing operations to find a network address.
Summary of its main features:
IPv4 CALCULATOR.
* It includes an Interactive Network Form to play with IP Settings (host, gateway and network). In addition, it includes a new classful and reserved addresses chart.
* IP GEOLOCATION.
* Tool for positioning on a map the entered IP addresses or dos names, including its related host and ISP data. It also gives your external IP and its Geolocation.
Optimized for iPhones 5/5S. Fully-compatible with iPhone 6, and iPhones 4/4S.