Native App Privacy

Full Title and Meme

An application that is installed on a user's computing device can be given access to some parts of user Privacy.

The day when a personal computer was for running application for the user is long gone, never to return.
Today a personal computer depends on cloud based service for nearly all of its functionality.
Some of those sites are willing to use a trusted User Agent, typically a web browser from a well-known and trusted vendor for rendering its content.
The first of the Laws of Security tell us that when an attacker gets to run their code on your computer, it is not longer just your computer any longer.
For the case where the user is not forced to allow an application to run on their personal device, see the page Web Site Security.
Android App list of Data Categories that require User Consent. https://support.google.com/googleplay/answer/6270602?hl=en
Apple iPhone App Requesting Permission: https://developer.apple.com/design/human-interface-guidelines/ios/app-architecture/requesting-permission/
Apple iPhone app Requesting Authorization to use System Features: https://developer.apple.com/documentation/uikit/core_app/protecting_the_user_s_privacy
Apple CKContainer manages all attempts to access user data on the device or in iCloud. https://developer.apple.com/documentation/cloudkit/ckcontainer
Windows (UWP) settings are on all Windows 10 computer, but do not seem to be shown anywhere on the web. Just navigate start -> settings -> privacy -> app settings.

The Native App exposes its name and the web site that backs it in a manner that allows the user to make a meaningful trust decision.
Joint use Native Apps are provide to some industries for all to use. It makes the trust decision by the user much more difficult.