We tried to use it once and couldn't even get it to connect. You can only send text messages, which means you have to send it through another app (which is completely broken). It's not intuitive at all. I've had no luck getting any sort of response from customer service either. Not useful if your phone isn't supported by this app or the other one. Also the free version is limited. If you want more than 200 characters per message they will charge $10/month plus tax. So when you're trying to contact someone who has an iPhone 7S Plus and 4G LTE connection there really isn't much point using it.