How to turn off data after a certain amount How to turn off data after a certain amount

Aim: To make my data turn off after it reaches a predefined amount of data to use. For example, I am using my portable hotspot to my computer with my phone. After the data used on my phone goes over 100 Mbs of used data the phones then turns the data switch off. 

Problems: Since my phone is android gingerbread (2.3.6) I don't have the built in data counter that is available in the newer versions of android.

Is this possible with tasker or a play store app?

Any help would be appreciated 



To anyone wanting an a step-by-step Instructions just leave a comment and I will post a link to a word document, pdf and a txt file (I would have to write them up first)
Try My Data Manager - Data Usage app.
It will notify you when you reach your data limit.