Is my phonebook shared to other users?

If you have downloaded Truecaller from Google Play or iTunes, your phonebook will not be shared.

For other platforms: Your phonebook is only available if you enable ’Enhanced Search’ within the app, and is removed when you disable the ’Enhanced search.’ However, Truecaller users cannot see whose phonebook the numbers have come from, and numbers are only searchable if another user has the number from another source.