The app itself is pretty much a clone of the popular app named iMessage. I would say that this is the worst software that I have ever seen. There is a bunch of bugs, crashes and errors. It was designed for iOS 10.3, however the current version is 8.2 They claim to support OS X Yosemite and higher, but they don't even provide the latest MacOS version. In fact, I am still unable to download their app from their website. They do not respond to any inquiries via email. They do not provide any kind of support or documentation. The developer is located in China and he does not reply to any of my messages. I cannot recommend anyone to use this app.