CallerSmart vs Shifty

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

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