100AM - Next gen business cards: always up-to-date, bright design
Truecaller - Find a person by a name or phone number worldwide for free using Truecaller.
Haystack - Your new business card.
CallApp - Free Caller ID & Call Blocker app that allows mobile users to block phone calls, identify calls, blacklist unwanted callers and much more.
PING - PING (Partimage Is Not Ghost) is a free software Linux-based live CD ISO built upon the partimage...
CallerSmart - CallerSmart is an application that is basically used for the purpose of looking up mystery phone numbers for free.