• WhoApp developed by TelTech is designed to protect the users' privacy against unknown callers and call scammers.

WhoApp developed by TelTech is designed to protect the users' privacy against unknown callers and call scammers. (Photo : YouTube/ WhoApp)

iPhone users do not need to be bothered anymore by unknown callers or possible scammers. A new iOS app WhoApp launched on May 18, Wednesday, is designed to track the detailed information of the unknown callers and return them to the users at no cost at all.

TelTech developed the iOS app that could trace calls from wrong numbers, telemarketers and potential scammers. WhoApp traces the unidentified callers' name, address, photo and provide a Google street view of their location.

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To use WhoApp, users need to hit the decline button and send it to the app once they received a call from an unknown number. As what it promises, it will then send the pertinent information to the users to help them decide whether to accept or to drop the call, MacRumors reported.

"For nearly a decade, we have focused on building innovative privacy and security apps that help people take control of their phones, and WhoApp will be another game-changer for iPhone users constantly wondering, 'Should I take that call?'" the publication quoted WhoApp CEO Meir Cohen as saying.

Other features of WhoApp include its own phone dialing pad that allows users to determine more details about the caller before contacting them.  The iOS app is also designed to determine various types of calls, from telemarketers, fake callers to significant callers, whose details were not yet saved in the users' phones.

Despite the smart features of WhoApp, some users may have privacy and information concerns because the app requires the users to connect to their Facebook account. It also needs to access the users' iPhone's address book.

It was not the first project for the New Jersey company to develop an app that protects the users' privacy. TelTech had won the Federal Trade Commission's 2015 anti-robocall competition title after it created the app RoboKiller. This app imparts some of its features to WhoApp.

WhoApp was developed to address the growing issues of spams calls to mobile phones, according to CNET. The Do Not Call list that bans telemarketers' calls to users is reportedly not enough to stop these kinds of calls.

Currently, the app is only available for iPhone users, but TelTech has plans to make it accessible also to Android users this coming fall. Watch how WhoApp works in iPhones: