Do you want to know how much data you used?
Of course, you can open settings and go to 'Data Usage' and you can check how much data did you use
But it is TIRESOME! How can I check my remain data realtime?
Use this app to solve your problem!
Features
1. The blue bar indicates how much data remain
2. Warn you when you download large-file
3. Indicate your data-using-speed
4. Warn you when your data remained under limit
If there any problems, contact to me with email