Best free Selling products Shopify apps in 2026 [Updated]

The Best Free Shopify apps for selling products help merchants expand their sales capabilities without added costs. From simplified COD order forms and wholesale bulk ordering to appointment booking calendars and digital product delivery - these essential tools streamline how stores handle orders, manage product variants, schedule services, and process deliveries. Whether you need customizable order forms, real-time price lists, or subscription management, these free apps provide core features to improve your store's selling functionality and customer experience.