Custom Shopify App Development

A custom Shopify app is a piece of software built specifically for your store, installed inside your Shopify admin and able to extend the platform with bespoke functionality — custom workflows, integrations, B2B features, loyalty engines, internal dashboards or automations that off-the-shelf App Store apps cannot deliver.

Either. Most of our builds are private (custom) apps installed only on your store, which is faster, cheaper and avoids App Store review. We also build public apps for clients who want to list their app in the Shopify App Store.

Yes. We build apps using Shopify Functions, B2B APIs and Checkout Extensibility, all of which require Shopify Plus. We also build standard embedded apps using Polaris and App Bridge for any Shopify plan.

A simple private embedded app starts from £6,000. A more complex app with multiple integrations, custom UI and Shopify Functions typically costs £10,000–£25,000. Public App Store apps with billing, multi-tenancy and review submission typically start at £20,000.

A focused private app typically takes four to eight weeks from kickoff to launch. A complex public App Store app with billing and multi-tenancy usually takes ten to sixteen weeks including the App Store review window.

Yes — we build to Shopify's current stable API version and follow the deprecation calendar. With an optional retainer we proactively update apps when Shopify announces a breaking change, well before deprecation. Without a retainer we are happy to schedule paid update work as needed.

Yes. Most of the apps we build connect Shopify to a client's internal CRM, ERP, warehouse system, internal database or bespoke web service. The app sits inside Shopify admin but talks securely to your other systems via authenticated API calls.

Yes. We offer optional monthly retainers covering monitoring, bug fixes, Shopify API version updates, performance tuning and incremental feature work. Many clients keep us on a small ongoing retainer rather than rebuilding internal capability.

You do. Full source code, designs and intellectual property transfer to you on delivery. There is no vendor lock-in — another developer can take over maintenance at any time.

Yes. We frequently take over apps originally built by another developer, refactor the codebase, bring it onto a modern stack (Next.js + Vercel + Supabase) and add the new functionality the client could not get from the original developer.