What this guideline means in practice
Guideline 5.4 applies to apps that offer VPN services. They must use the NEVPNManager API, and they may only be offered by a developer enrolled as an organization. An individual Apple Developer account cannot ship a VPN app.
Before the user pays or turns the VPN on, an in-app screen has to say what user data is collected and how it is used. The privacy policy has to commit that the app will not sell, use, or disclose that data to third parties for any purpose.
The app must not violate local law. If you distribute in a territory that requires a VPN license, put the license information in the App Review Notes field. Parental control, content blocking, and security apps from approved providers may also use NEVPNManager. Using the API, or the word VPN, for a different product is the bait case reviewers reject.