CallerSmart vs PINGTAG

Investigate mystery phone numbers, and avoid unwanted calls

CallerSmart is a free app for your iPhone that helps you identify mystery callers and block those you don't want to hear from ever again. How? By bringing you an up-to-date nationwide phone book that's supported by an ever-growing community of passionate users. Thanks to a revolutionary game system which rewards you for your contributions to our phone book, together we're now able to outsmart unknown & unwanted callers.

Location: Vancouver, Canada

The emergency contact QR tags for your car and personal items

A PingTag is a printable tag with a QR code that you attach to your car and your personal items, so that people can scan it to message you in case of an emergency, without revealing your phone numbers to each other.

Each PingTag you create and attach to an object acts like a dedicated phone number that privately relays messages to your phone and/or email, while keeping your actual phone number private.

Location: Los Angeles, United States