Truecaller is best app to identify any one. Before install this app I did not understand who called me. But after install this app I can easily know about caller. I can block any person direct from this app. I can also use it for sms. Now truecaller keep one facilities to send money to any one direct by this app. Their support is also good. Truecaller always notify me before I receive any call. If many persons block any number it show red colour. Red means denger. Easy to install this app from google play store. And mb of this app also small. Features in this app is so usefull to me. I really happy to use this app. Thank u Truecaller.