Data Tracker is a user-friendly, free app for you to manage your data usage. Data Tracker helps you to accurately measure your daily data traffic, and analyze the data in a way easy to understand.

Features
• Track daily data usage
• App-wise data usage stats
• Stats for different time period (last month, this year, all time etc).
• Mobile data as well as Wifi usage stats
• Weekly data usage overview
• Data Monitor widget and notification
• Data usage alert
• Custom mobile data reset time
• Network diagnostics
• Live network speed monitor
• App usage time
• No ads or In-app purchases
• Light-weight and Open Source