Google it. This is also is a pay for software. Also keep in mind that VZW maybe able to monitor data. If they see that you are mass amounts of data, the account is subject suspension. Not that I have seen this happen, but the chance is there.
It will use the internal data plan of the device. This attaches to proxy servers though tetherberry. internal data is unlim., but VZW can still monitor that use and if are pulling large amounts of data it is a red flag.