This is a brilliant free app for anyone who worries about going over their data plan when traveling internationally. Mobidia’s My Data Manager helps you track your mobile data usage on iPhone, iPad and Android on a per application basis so you know exactly what applications and services are consuming your data. You can configure notifications to alert you when you are close to consuming all of the data covered in your plan so you can avoid overage charges (“bill shock”), and you can keep track of your data usage on your metered home plan or manage your data usage when you are traveling and using roaming data.
My Data Manager will also track your usage on Wi-Fi networks, as well as identify applications that are consuming data in the background and using your valuable data allocation. After a few months of usage, you’ll be able to determine how much data you need to use on a regular basis so that you can choose the best plan for you.