The truecaller is a wonder app but it takes so meny time to so that. The truecaller app is also provided the information about the contact mobile number. There is wonderfull concept it is , now a days we cheated by so meny people even when we in facebook there is no idea, where the speaker is male or female. Thats the problem in now a days is, so to eradicate this problem truecaller, gives the correct information about the others. Thats app also useful to the dictators who chets the people.