Description"Network Traffic Monitor" is a featured network traffic tracing tool.
Network Traffic Monitor measures data traffic consumed by your EDGE/3G/HEDGE/GPRS and Wi-Fi. It is based on open source app NetCounter.
It can show your data usage in a special period. Data are persistent and you can set the counters (monthly, last 7 days, today, etc) as you need.
It is very easy to use, and is very useful to help you know network usage any time.