This app is very usefull for everyone. With the help of this app you can get information about any unknown number and you may be safe from spammers and hackers.The call blocking facility of this app is to good. You can block any spam call from your network provider.It is very friendly to use and it’s dialer look is far better than any other app.I am using this app is about 2 years ago in different phones.I like it. You should try this app once.