A Beginner's Guide to Shopify App Development

Shopify apps extend the platform beyond what themes can do — from custom admin tools to storefront features and integrations. Here is what goes into building one.

The building blocks

• Shopify's Admin and Storefront APIs to read and write data.
• OAuth for secure authentication and installation.
• Webhooks to react to events like new orders.
• App extensions to surface features in the admin, checkout or theme.

Custom vs public apps

A custom app is built for a single store — perfect for bespoke features or private integrations. A public app is listed on the Shopify App Store, can be installed by many merchants, and needs review, billing and ongoing support. The right choice depends on whether you are solving your own need or building a product.

What good apps have in common

They are fast, secure, respect merchant data, and integrate cleanly using modern extensions rather than fragile hacks. They also handle errors, rate limits and edge cases gracefully.

Experts Cabin builds custom and public Shopify apps on the modern app stack, for merchants in Pakistan and worldwide.