After the CloudCam launched a lot of people had questions about how much data their iPhone/Android handsets would use. We've put together a general list based around the typical 2GB data plan found on most smartphones today. Test results are available here - CloudCam Data Usage
With all the different video settings on CloudCams it's near impossible to account for all the different combinations. If you plan to use a 3G/4G connection to run the CloudCam we recommend combining that with either a Peplink or NetBSD Cradlepoint router to monitor your monthly bandwidth usage.