Onavo lets you easily set up according to your monthly data plan.
It gives the ranking according to your data usage like if you use excess of data in few days then it says that your bill for the given month will be very high.
And it has other features of sharing your data usage with your friends. So that they can know what improvements you made after using this data usage management app.
It works good having an intuitive design . But it takes background memory .
So i would not recommend it for low specs smartphones below the range of 9000 INR .
I give this app 4 STARS –
Happy data consumption !