TRUE CALLER.

 

Truecaller: Caller ID & spam block

Identify unknown calls with the most powerful Caller ID in the United States. Stay protected from spam and scams - Truecaller’s Caller ID will identify and block robocallers, fraudsters, telemarketers and other unwanted phone numbers. The advanced spam detector will automatically block and protect you from fraudulent calls and SMS, and is updated in real time by millions of users worldwide.

World Class Blocking & Spam Detection:
- Block calls and SMS - Identify and auto-block telemarketers, robocallers, scammers, fraud, sales, and more
- The spam list is updated by millions of people across the world in real time
- Advanced blocking options for blocking countries, similar phone number sequences, and more!
- Automatically identify + block every unknown, spam or telemarketing SMS.
- Automatically organized tabs for your SMS - Personal, Important, Other and Spam

Powerful Caller ID & Dialer:
- The leading Caller ID shows who is calling
- The Caller ID will tell you if an unknown caller is a business or spam.
- Use Voice calling to talk to your friends on Truecaller for free
- Robocallers and scammers identified in the Caller ID

Truecaller does not upload your phonebook to make it public or searchable. We are trusted by 270 million users globally and exist to make your communication safer.

How does Truecaller app work?  

Truecaller acts on a give and take scenario... You want those unknown numbers then you have to part with your phone book contacts.. Now apparently everyone who has installed the app has surrendered his phone book. The data is crowd-sourced from the millions of users who have downloaded the truecaller app on their smart phones. As part of the end user agreement, the truecaller app asks the user to allow access to the user's address book/contacts on the smart phone. This data is then uploaded by the app to the company's servers. After going through several data matching/refining algorithms, this data is made available to all truecaller users to search upon.

The story must start from the login screen. If you have already used Truecaller, you might have seen

 that Truecaller only allows either Facebook, Yahoo! or Gmail to access Truecaller app. If you don't

 have one you cannot connect to Truecaller database. This is because, Facebook, Gmail and Yahoo! are

 the most widely used social networking sites that contain a lot of phone numbers and other contact

details. It implies that when you use one of the social sites, your entire contacts including phone

numbers, contact names, email ids will be uploaded to a secure Truecaller server. In case you login to

  the app using your mobile phones then your entire address book will be sent to the Truecaller servers.  These are organized into records and each number will be assigned a Truecaller id. When some one searches the number using Truecaller number search, the caller id associated with that number will be  displayed.

DOWNLOAD  THE  APPLICATION 

So out of all the people who know you and have your contact number stored against your name in their

 phones - if even 1 person uses the truecaller app, your contact number and name would end up in the

 truecaller database.