I opened up Mr. Number today and I got a popup saying that Hiya is going to a premium service for complete caller ID and call blocking of spam and potential fraud numbers. Is this worth it? Or just continue with the free app? Maybe that's why the phone still rings with the strange number then I have swipe left to hang up on it, then go over to the app to block it. The premium service might not let the phone even ring with the spam number.