How to tell you have a tracker on your iphone?

My mom just got an iphone and her boyfriend apparently put a tracker on her phone. I want to know if you can tell that she does have one on there and is there anyway to delete it?

Ashley,
The owner of the account has permission to learn GPS tracking information from the phones only on their account. So if your Mom's account is her own, and has never given away her account passwords, then she is probably safe.
The boyfriend, (unless he is states attorney or police detective with a court order) can't put 'tracker' on a phone.

Well it most likely would be an app. Google Latitude, Find My Friends, perhaps even Find My iPhone (though I wouldn't recommend deleting that app if it is that one). Press & hold on the app & you would be given the option to delete.