Ok nice. The idea is to make something like Telegram (totally encrypted) but we give you a phone number.
So if another user has the app, all communication is secure and nothing is viewed or stored. Of course, no ads.
And if the user is communicating with someone without the app, the UI is the same except a few functions go away (like file transfer). Because now it can be only standard SMS.
But then your whole phone experience is synced in the cloud. It's cool!