A free app for Android, by TouchSpot MX.
Data Usage - Call Timer is a utility for monitoring and managing your mobile data usage, helping you to save money on your monthly phone bill.
Why use this app?
If you use your phone more for gaming or watching videos, you might want to consider using a data monitoring app like this one. Not only will it help you to save money, but it will also give you a more reliable way to keep an eye on your data usage, and you will be able to have a better idea of when your data plan is going to be charged.
Data Usage - Call Timer is a free app. You can download it for free from Google Play. There are no hidden fees, no special memberships, and no annual subscription fees.