Apps can now increase subscription prices without a user needing to take action to allow it.
Apple’s latest update to the App Store rules allow subscriptions to more easily auto-renew at a higher price. Currently, if a subscription costs more than your previous payment when it comes time to renew, a user must explicitly accept the price hike or the subscription will automatically stop. Moving forward, though, developers can—»under certain specific conditions and with advance user notice»—increase the price of a subscription without the customer taking any action, thus avoiding any interruption to service.
