Why Build a Custom Shopify App?
Off-the-shelf apps serve common needs, but unique business requirements demand custom solutions. Whether it is a proprietary fulfilment integration, custom pricing logic, or a unique customer experience, custom Shopify apps give you exactly the functionality your business needs.
Architecture Decisions
Embedded vs Standalone
Embedded apps run inside the Shopify admin using App Bridge, providing a native experience. Standalone apps have their own interface and connect to Shopify via API. Most merchant-facing apps should be embedded for the best user experience.
Technology Stack
Shopify recommends Remix as the app framework, paired with Polaris for UI components and Prisma for database management. Node.js with Express or Ruby on Rails are also popular choices. We use the stack that best fits each project’s requirements.
Shopify API Essentials
Admin API
The Admin API provides access to store data — products, orders, customers, inventory, and more. Available in both REST and GraphQL versions, though Shopify increasingly favours GraphQL for new features and better performance.
Storefront API
The Storefront API enables headless commerce, custom storefronts, and buyer-facing experiences. Use it for building custom product pages, cart experiences, and checkout flows outside the traditional Shopify theme.
Webhooks
Subscribe to events like order creation, product updates, and customer registration. Webhooks enable real-time data synchronisation between Shopify and external systems — ERPs, CRMs, fulfilment centres, and custom dashboards.
Authentication and Security
Shopify uses OAuth 2.0 for app authentication. Implement session tokens for embedded apps using App Bridge. Validate webhook signatures to prevent spoofing. Store API credentials securely and never expose them in client-side code.
Billing and Monetisation
The Billing API handles recurring charges, usage-based pricing, and one-time purchases. Shopify manages the billing relationship and takes a revenue share. Design your pricing tiers based on value delivered and competitive positioning.
App Store Submission
- Listing quality: Clear screenshots, compelling description, honest pricing
- Performance: Fast load times, efficient API usage, minimal impact on store speed
- User experience: Follow Polaris guidelines, intuitive onboarding, helpful documentation
- Support: Responsive customer support and regular updates
Have an app idea? Discuss your concept with our app development team.
