Drupe - Next generation contact manager and dialer.
Truecaller - Find a person by a name or phone number worldwide for free using Truecaller.
True Contact - True Contact is a special caller ID revealing app for those smartphone users who want to resolve their issue of unknown and unwanted calls.
Google Contacts - Google Contacts is Google's contact management tool that is available in its free email service Gmail, as a standalone service, and as a part of Google's business-oriented suite of web apps Google Apps.
WhosCall - WhosCall is a reliable caller ID app whose popularity has led to its adoption by many users including international media. You can now manage the numbers calling you regardless of whether they are part of your contact list or not... read more.
Bluff My Call - Bluff My Call app provides features to allow users to make prank calls to their friends and family members by changing their voice and caller ID in a few simple steps.