iOS recurring subscription policy for service, not content

Question

Apologies in advance for a policy, rather than a programming question, but given the paucity of information available online I hope I can be forgiven for asking it here.

Answer 1

As for 2019, things have changed a little bit. Apple now do allow the usage of the SaaS model with IAP Auto Renewable Subscriptions:

Permissible uses: If you offer an auto-renewing subscription, you must provide ongoing value to the customer, and the subscription period must last at least seven days and be available across all of the user’s devices. While the following list is not exhaustive, examples of appropriate subscriptions include: new game levels; episodic content; multi-player support; apps that offer consistent, substantive updates; access to large collections of, or continually updated, media content; software as a service (“SAAS”); and cloud support. In addition: