The iPad does not have overage charges. If you use up your data, you have to manually sign up for more data. If you sign up for more, it's like starting the mo

The iPad does not have overage charges. If you use up your data, you have to manually sign up for more data. If you sign up for more, it's like starting the month over from the time you sign up. You're also given the opportunity to switch to a plan with a different data size.