I have a client with existing products available on their website, and we are beginning to offer those products for sale as IAPs in their app. One of these products is a monthly subscription (let's just say it's $20/month), but the first month is priced higher (let's say $50) due to setup fees (the client truly does have justifiable reasons to charge more to cover their own up-front setup costs).
How can we offer such a situation via IAPs on the App Store? My initial guess is to create a subscription IAP product with an introductory price that is set higher than the regular monthly price, but I have concerns this might be rejected after all the work to update the app to handle such an IAP product.
Otherwise, I suppose we'd have to fire off two IAP product purchases in series, one for the non-consumable IAP that costs $30 once and another for the subscription IAP that costs $20 per month – but of course that's a pretty suboptimal user experience.
Does anyone have experience with this? Or with other means to achieve the same ends?