My watch app will put a portion of its features behind a subscription paywall, I'm following a few tutorials I found re: implementing an auto-renewing subscription: savvyapps and RW
Is there any reason I cannot/should not build this code on watch and have the user make the purchase there? Or should I write the IAP code on the iPhone app and pass a subscribed Bool message to the watch upon load?
StoreKit is not available in WatchOS. The user has to make the purchase on the iPhone, then use WCSession to pass a message to the watch to keep whether the user's subscription is current in sync.