Data Monitor for BlackBerry 10 will give you some peace of mind
Worried about exceeding your data allowance with your new BlackBerry 10 smartphone? You can now rest easy as Data Monitor for BlackBerry 10 will take away the stress. As the name of the app suggests it will record how much data your BlackBerry is using and will even warn you when you are at 50%, 75% and 90% of your monthly allowance - good stuff.
Within the settings of the app you can enter the amount of MB's per month you have to use and there are toggles to turn off the warnings if you like, although I think that would kind of defeat the object.
If you don't have a data plan with unlimited usage then you really do need this app and it won't break the bank either. Data Monitor costs £0.75/$0.99 which is a wise investment if you have ever exceeded your limits.
More information/Download Data Monitor for BlackBerry 10