While iOS apps like Evernote and Instapaper are able to provide users with in-app auto-renewing monthly subscriptions for services, the same functionality is not available in the Mac App Store at the current time. For example, Evernote is able to offer a renewable monthly subscription to its premium service via iOS, charging $5 per month. On the Mac App Store, however, Evernote cannot offer a subscription, instead requiring users to sign up each month or purchase a year of service in advance. As 9to5Mac notes, that is set to change in OS X Mavericks, with the introduction of Auto-Renewable Subscriptions for Mac Apps.
