Seeking Clarification

I have a side project, a Mac app, that I could also do as an iOS app. I have no plans to do so — but the news about subscriptions and free trials makes me reconsider.

It might be sustainable with this new model.

But here’s the thing: the app is a stand-alone thing. I’m not running a backend web service for it. Would it be okay to use the subscription-based pricing? Here’s what Apple says:

Starting this fall, apps in all categories on the App Store will be eligible to offer in-app purchases for auto-renewable subscriptions to services or content. Users enjoy the reliability that comes with subscribing to a service that they love, and the experience must provide ongoing value worth the recurring payment for an auto-renewable subscription to make sense. Although all categories of apps will be eligible, this business model is not appropriate for every app.

What does “not appropriate” mean? Does that mean rejection? Or is that just a warning that it’s maybe not the best fit, but it’s okay to try it anyway?