We have an iOS app with the following requirement.
- The app must be accessible only to those participating in a research study
The app will be published to the public App Store, however, it will launch with a lock screen. If a valid PIN code is entered, the lock screen will disappear to reveal the app.
We are looking for examples of other apps that follow a similar restricted-access model.
There are a lot of apps that require login prior to use. However, most of them also have a registration button, a preview mode, or provide unrestricted content. In our case, the PIN code will be provided in person to those participating in our research study.
We are look for examples to emulate so in order to avoid issues with the app review process.