my app is like an iPod for web articles. You can listen to the web articles. http://lisgo.org/
I am working on a free version with in-app-purchase now. But, I'm not sure if I can do subscriptions model for a upgraded version on app store.
There is no web version for my app, even though it needs to connect to the internet for article parser.
For example, I want to do like this. Free version = ads, voice speed 1x only, no offline mode. Premium version (subscriptions) = no ads, multiple voice speeds, offline mode.
I have not seen apps which unlock their features on subscriptions unless it has been provided as a web SaaS service. And, my friend told me it is against apple's guide line, but I couldn't find the page states that rule.
Any advice will be appreciated so much!
Thanks.
Apple said to me that auto-renewable subscriptions are only allowed to publishers, not for web service vendors.
It seemed that I can try non auto-renewable subscriptions because they suggested it, but I haven't tried it yet. I believe one time in-app-purchase is good for my model for the moment.
The author of Instapaper also talked about this on his podcast, and he needs to use non-renewable subscriptions for his additional subscription model.