Free "Port Scan Pro" for a limited time only [iOS] iTunes

Port Scan Pro - Full feature TCP Port Scanner
Port Scanning is a essential network utility for every IT professional and this is the best scanner available for your iOS device. This utility application lets you check what services are listening on a network and is useful for making sure no service ports are open that shouldn't be. Use this security tool as a conveinant portable app to check on open ports behind your corporate firewall via connection through the WiFi network or from the Internet through the cellular network. This app is a must have for every network/system administrator but simple enough for the non-professional to use and understand.
Features include:
* Ultra-Fast multi-threaded TCP port scanner for cellular or WiFi networks.
* Quick scan for the most popular ports, does a scan within a few seconds.
* Send scan results via email to save and record open port status.
* Display common protocol used by each open port and allow connection if port protocol known.
* Scan using Hostname/URL or IP address with history of last 50 hosts scanned.
* Port scan parameters are fully adjustable to handle different network environments.