We can definitely offer support for you as well. We know how vital it is that you're able to track your data usage. We can't recommend using any third party applications besides Apple's built in monitor or ours. I would stay away from those because we have no knowledge of how they work. If you wish to use Apple's monitor for your daughters phone, you can check this at the very bottom of Settings > Cellular. Keep in mind that for iPhones, this does not automatically reset. The only way this will remain close to accurate is if she or you goes in and selects "Reset Statistics" in the morning on the first day of the billing period. Is that something you've been doing?
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