Data Counter is a widget that gives you the phone's overall data consumption rate.
Ranked in these QuestionsQuestion Ranking
Pro Homescreen widget
Has a homescreen widget that shows the usage for Wi-Fi and mobile data.
Con Widget has no settings
No setting to show (both) daily and/or weekly and/or monthly usage.
Con Only basic stats
It only shows the basic data usage (sent/received/total) per day, week, month, year. No graphs, no further breakdown.