Recently, there have been reports that some call-blocking apps have taken users' contact lists and put them into a public database. Up to 3 billion phone numbers and other personal information may have been exposed.
SmarTone is committed to protecting your privacy. and Our Call Guard service never saves your contact lists. Call Guard has blocked more than 100 million junk calls since its launch# and will continue to provide a hassle-free service to protect you from unwanted calls.
Call Guard can be used on smartphones running iOS 5.1.1 or above, Android 2.2 or above, Windows Phone 7.5 or above and BlackBerry® 6 or above.