
Shah then added how the spam list works – Truecaller also uses this data to organize the regional ‘spam list’ in a country, so it can notify you of spam callers that are most likely from your city or adjacent area. We have more than 250 million registered users across the world, who are contributing to the community.” Shah told us the platform works thanks to its community, where users submit the data and help others identify the numbers. He then explained that Truecaller hasn’t been using the address book of its users to build out their database since 2012, which is when the privacy policies came into effect on both Google Play and Apple App Store. Truecaller has been totally compliant with the app policies of both stores since the beginning. The app even took a lot of stringent measures, allowing users to view and delete records even before GDPR came into play. We do not upload the phone book from users who download the app from Google Play Store and Apple App Store.” Shah specifically stressed this point saying “We are 100% compliant with these policies.

Google Play Developer Policy Apple App Store Review Guidelines Both Google and Apple do not allow developers to upload address books to their own servers, however, they can access them on-device for services such as the dialer, messaging, and more. Well, that’s not actually the case, because of a very simple reason.
