I installed and paid for this app less than 2 months ago. While their customer service is quickly responsive, I have sent them screen shots of my phone and pictures of my daughter's phone settings twice and the app has only worked two times since installed. They refuse to give me a refund which makes no sense to me. I paid for a service, the service doesn't work, simply refund. That's how the world usually works. The other frustrating part is that they don't see my history of emails.