Ping Analyzer is an easy to use graphical network ping tool that provides real-time average, minimum and maximum round-trip times (RTT), jitter and Mean Opinion Score (MOS) estimation.

Same as other ping tools for the iPhone, Ping Analyzer uses Internet Control Message Protocol (ICMP) Echo Request and Echo Reply packets to determine the availability and response time of a target machine. The key difference from other tools is that Ping Analyzer does not emulate the output you would get on any computer by running the original ping command, for example:

user@desktop:~$ ping www.google.com
PING www.l.google.com (74.125.229.50) 56(84) bytes of data.
64 bytes from 74.125.229.50: icmp_seq=1 ttl=55 time=9.50 ms
64 bytes from 74.125.229.50: icmp_seq=2 ttl=55 time=9.50 ms
64 bytes from 74.125.229.50: icmp_seq=3 ttl=55 time=8.24 ms
64 bytes from 74.125.229.50: icmp_seq=5 ttl=55 time=7.81 ms
64 bytes from 74.125.229.50: icmp_seq=6 ttl=55 time=8.02 ms
64 bytes from 74.125.229.50: icmp_seq=8 ttl=55 time=7.99 ms

For a few packets it is easier to determine that some of them were lost, but when you let the command run for a while, you will see that doing such a thing becomes more and more cumbersome. Wouldn't be nice to have a summary showing, for example, a percentage of successful packets and average response time? Sure, you can get this with other iPhone ping tools, but not until you stop pinging the target machine! In this case, you will get something like this:

--- www.l.google.com ping statistics ---
8 packets transmitted, 6 received, 25% packet loss, time 55133ms
rtt min/avg/max/mdev = 7.687/8.288/10.094/0.751 ms

Why would you want to stare to a bunch of lines when you have a nice display in your iPhone? With Ping Analyzer you not only have a graphical representation of actual response times and packet delivery rate, but you also get real-time statistics while you ping a host.

Ping Analyzer lets you quickly enter the host name (or IP address) of the host you wish to ping. You can also adjust the number of ping requests that will be sent, the time interval between packets, the packet size, and the maximum IP Time-To-Live (TTL) of outgoing packets.