SpeedTest for iPhone - Measure your Speed

Use it to measure speeds wherever you may be. If you using Skype, Truphone, Viber or Whistle this is the best app to test the local area WiFi to see why your calls keep dropping. In fact, Youtube videos aren't load fast enough, use SpeedTest for iOS. The utility lets you benchmark how fast data is being transferred over either Wireless or 3G. Within seconds can see if the hot spot your using will work for your next call or video. 

Makes full use of the global Speedtest.net testing infrastructure

Shows real-time download and upload graphs

Stores results both locally and on the Internet for sharing

Works over both WiFi and cellular networks