Has anyone in the community setup a subscription app, that I can use (buy) as a starting point?
If you’re looking for a quick start, there are a number of templates that you could use as a baseline.
Though I think it would be good to narrow down what you’re looking to do with the subscription first. Subscriptions manifest themselves in many different ways (ie. Amazon Prime’s annual membership that gives you “premium access”, Netflix’s monthly membership to access it’s library of content, a Bubble subscription for your app to access advanced features, etc).
By narrowing things down to your general use case, you’ll likely get more targeted responses.