The app works well on Wi-Fi service, Yet the free continuous service is not free sim card service. The app ask you to give information about your ICCID and IMEI numbers, which is part of your own private phone system security information. Before the the text now app, then ask you to pay 99 cent's, The app doesn't tell you you must pay to receive free Wi-Fi service continuously when you are not on a Wi-Fi service. The cost is and is not acceptable, do to the fact you have already put info in.