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This mean, if you receive a call from someone who is not in your phonebook then TrueCaller displays who the caller is.
TrueCaller is the most used Caller ID application with social media integrations and intelligent call blocking functionality against spam calls.
In Canada, Denmark, Italy, Norway, Sweden, US â€“ TrueCaller is a 7 days trial application. If you live in these countries, you can buy a license.
In the rest of world is free.
TrueCaller from True Software on Vimeo.