To support more business models on the Shopify App Store, we’re introducing annual subscriptions through the Billing API. Merchants can choose a yearly subscription for your app, and you can track annual revenue from the Partner Dashboard.
We’ve also made it simple for merchants to upgrade an existing app subscription from a monthly to a yearly plan. Price differences will be prorated when merchants change plan intervals.
Learn more about enabling annual subscriptions for apps on Shopify Developers.