Starting on 8 December 2020, anyone publishing a new app on Apple's App Store or updating an existing app will have to complete and publish the App Store privacy label.
The label, similar to the nutrition labels printed on food products in supermarkets, must clearly and transparently list the user's personal data processed by the app and by third parties, and the purposes of the processing.
The information must be published directly on the store and made available to the user before they decide to download the app.
Below is an example provided by Apple of how the new privacy label will look:

Developers must still provide users with a complete, GDPR-compliant privacy policy to be linked on the app's store page. Optionally, they may also provide a link to the so-called “Privacy Choices”, i.e. the section explaining to users how they can exercise their rights over their personal data and/or change their privacy preferences and consents.
For details on how to complete the privacy label, see:: https://developer.apple.com/app-store/app-privacy-details/
If you need more information or support in carrying out this task, send an email to protection@argobs.com