IP Mask Calculator for iOS

* "Simply Elegant" -SMC* "Nicelly done, that's exactly what I need. I use it for my CCNA preparation" -Jason MingThis IP Subnet Mask Calculator is designed for Network Engineer that need to calculate or verify the ip mask, hosts range, broadcast ip, etc. Handles truly like a calculator with keys and display in a single view, all the values updates in real time as you increase or decrease the mask bit. AN EASY, SIMPLE, MUST HAVE APP FOR IT PROFESSIONALS !!Features:- Easy edit with custom keyboard- Entry validation with sound feedback- Class A,B,C,Reserved- Display realtime IP mask, first last host, network IP and broadcast IP- Subnetting and Supernetting- Decimal, Binary and Hexadecimal- Results are formatted and ready to be emailed for report or printingBONUS: - Fetch IP address registration information from IANA.org database using whois protocol.