The price can only be raised once per year without requiring an opt-in, which should keep scammy apps from gradually raising their prices by a buck or two every other month. Apple also states that the price rise must be “permissible by local law,” which is obviously a given.
If any of those conditions are not met, you must still opt-in to the price rise, or your subscription will be canceled. Users will be notified of forthcoming automatic renewals with price increases by “email, push notifications, and in-app messaging,” according to Apple. It’s worth mentioning that you could easily flip Apple’s logic: if customers missed the renewal opt-in alerts, wouldn’t they also miss the new price change warnings? However, it appears that they will be relatively intrusive.
