Hi,
Is one allowed to create a consumable IAP product with variable content?
An example.. A client buys the consumable product ‘extra time’. On selecting the product in my app, the app informs the user the extra time that will be added. This time is calculated based on my internal formula and can vary depending on the users state in the app.
Is this allowed?
I do not see anything in 3.1.1 In-App Purchase that would forbid it.
Just take care of 3.1.2:
Apps that attempt to scam users will be removed from the App Store. This includes apps that attempt to trick users into purchasing a subscription under false pretenses or engage in bait-and-switch and scam practices; these will be removed from the App Store and you may be removed from the Apple Developer Program.
Also take care to inform user of how much time he/she would buy before completing transaction.