WiFiPerf

For the price it should be operational if not superb.

...for restoring support for the iPhone 4S / iPad 2.

Ripped of!...keep crashing!!,

This app is quite helpful for testing wireless network performance when a large network is being deployed. It is expensive, considering it uses an open protocol, and possibly even library. However, it has a good featureset, and the bandwidth graph is a nice touch. Overall, if you need this functionality, the price is minor, especially if you are deploying a wifi network for iPads that is important. On my iPad 1, I occasionally have to kill the app, because each interval reports data twice. This is ios 5.0.1. When I kill the app(double-click the button, find the app, hold down its icon until it shakes, and click on the minus symbol), and start it again, the reporting is correct.

I have been doing a lot of wireless tuning for iPads lately and this app is just want I was looking for. It's missing a few parameters that you can set on a Windows/Mac/Linux box like parallel streams but it is still very useful. I had no problem using jperf3 on windows or iperf3 in a terminal on OSX as the server. A couple reviews mentioned trouble using it. If you have never used iPerf before you may be a little frustrated. It isn't like running a "Ping" app. You have to use two devices, you may need to turn off the windows firewall on a Windows box and iPerf isn't rock solid. There are times it will quit responding on the server and you will have to restart it. But, if you need to do network bandwidth testing iPerf is well worth learning. It will test ANY link type. I have used it on VPN tunnels, MPLS, P2P WAN, server to server on a LAN and now on IOS. Plus you can test switch ports by plugging directly into a switch with two devices. A good test if you supect the switch can't keep up. On a 10Gbe network it was able to generate 8+GBps from a Windows VM on one VMWare host to a Windows VM on another VMWare host.