iOS app makers will soon be able to discount subscriptions for current and past customers

Apple will soon give iOS and Mac App Store developers the option to offer discounted subscriptions to current and past customers, as noted by MacRumors and TechCrunch. As it stands now, limited-time subscription rates can only be part of introductory promotions; once you’ve signed up for a service or app, you’re stuck having to pay the regular subscription cost after the discount expires. And developers haven’t had any way of changing that — say, to entice former subscri