Truecaller - Find a person by a name or phone number worldwide for free using Truecaller.
Blinq.me - Create your free digital business card in seconds. Recipients don’t need the Blinq app to receive your card. Raise your networking game today.
CallApp - Free Caller ID & Call Blocker app that allows mobile users to block phone calls, identify calls, blacklist unwanted callers and much more.
Typecard - The free and easy way to create your digital business card
CallerSmart - CallerSmart is an application that is basically used for the purpose of looking up mystery phone numbers for free.
Haystack - Your new business card.