Ongoing is a subscription app based in the USA, offering premium recurring billing services for Shopify Store owners. With Ongoing, store owners can easily create a 'Subscribe & Save' option on products with automatic recurring charges and scheduled orders. Additionally, the Build-a-Box feature allows shoppers to subscribe to multiple products at once, helping to increase the average order value. Ongoing also offers incentives such as product bundling, minimum order amount, and discounts based on frequency.