Creator of this app records your calls and ends them at will and controls your info. When someone calls you, THEY will take THAT PERSONS phone number and later make fake calls to you using that unsuspecting person's phone number-called spoofing and for who knows what else??To scam?? It's unfortunate that this app is one of the only apps that provides clear calls and is free. Also, after 30 min on a call, the signal will be staticky, badly muffled and robotic to the other person and will freeze.