Restrict App Access
One of the biggest threats to your limited data allotment comes from installed apps. Many apps are voracious when it comes to data usage and can eat a chunk out of your total data in no time. To combat this issue, limit which aps have access to your cellular data service.
For iOS users, this is a simple process. To access the limiting feature in iOS 7, tap the Settings app, selectCellular, and look for the heading Use Cellular Network Data For. All you have to do to limit app access is to tap toggle the switch by the listed app’s name. By flipping the toggle, you will limit the app to only updating or accessing data through Wi-Fi.
Unfortunately, Android users no longer have the ability to limit access to apps outside of uninstalling. For a very brief moment recently, Android users were given the ability to limit if an app had access to certain phone features without denying the installation all-together. That ability was taken away, leaving Android users with no way to combat a popular app’s usage beyond deletion.
Click on 3 below to see the third page for more ways to limit data