Onion browser can be signed with a Enterprise Distribution certificate, to get around China's censorship
Onion browser can be signed with a Enterprise Distribution certificate, so that the app can be Distributed outside the App Store and allow users in China to Obtain the app evening though may be removed from the App Store in China.
Here is information on the Distributing Apple Developer Enterprise Program Apps. https://developer.apple.com/library/content/documentation/IDEs/Conceptual/AppDistributionGuide/DistributingEnterpriseProgramApps/DistributingEnterpriseProgramApps.html
There is the possibility that distributing the app like this may not be acceptable for their terms of service.