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Shopify Store Build

Custom Shopify App Development

When no existing app does what you need, we build it. Custom private apps, Shopify Functions, API integrations and admin extensions — purpose-built for your store.

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Certified Shopify Partner 4.9★ Client Rating UK-Based Team
150+
Stores Built
£20M+
Client Revenue
4.9★
Average Rating
7 yrs
Shopify Experience

No Existing App Solves Your Exact Problem

Shopify's App Store has thousands of apps — but not one that does exactly what your unique business process requires. You've tried three different apps, combined two workflows with Zapier and you're still not there. Custom development is the only path that gives you exactly what you need.

How We Deliver Custom Shopify App Development

A clear, proven process — no surprises.

Scoping & Architecture

Define requirements, map the data model and choose between private app, custom app or Shopify Function.

API Development

Built against Shopify's Admin REST and GraphQL APIs. Follows Shopify's extension-only model for future compatibility.

Testing & Security Review

Unit tests, integration tests against a dev store, and a full security review before deployment.

Deployment & Docs

Deployed to your store with full API documentation so your team can maintain it.

What's Included

Every engagement includes:

Custom Shopify App Development Pricing

Transparent, fixed-price packages. No hidden fees.

Store Starter

Simple private app or webhook handler

£1,997

One-time fee

  • Simple API integration
  • Webhook setup & processing
  • Basic admin data sync
  • Test coverage
  • Documentation
  • 14-day delivery
Get Started

Store Scale

Full custom app or Shopify Plus Functions

£7,997

One-time fee

  • Everything in Growth
  • Shopify Functions development
  • Checkout UI extensions
  • Public app submission
  • Ongoing maintenance option
  • Priority support
  • 30-day delivery
Get Started

Start Your Custom Shopify App Development Project

Tell us about your store and goals. We'll send a tailored proposal within 24 hours — no commitment required.

Response within 24 hours
No long-term contracts
Certified Shopify Partner
Fixed-price, no surprises

Get Your Free Quote

Custom Shopify App Development — Frequently Asked Questions

Private apps are single-store integrations that don't go through the App Store. Custom apps are built and distributed through Shopify's partner program. We recommend private apps for internal tools and custom apps when you need advanced permissions or distribution.

Yes. Shopify Functions let you customise checkout logic — shipping filters, discount rules, payment method hiding and cart validation. We build these for Shopify Plus stores.

We implement request queuing, exponential backoff and webhook processing queues so your app never hits rate limits, even at high order volumes.

Yes. We've built integrations with Linnworks, Brightpearl, Inventory Planner, ShipBob, Fulfilment by Metapack and others. If your ERP has an API, we can connect it.

We build against stable API versions and include documentation of any version-specific calls. We also offer an ongoing maintenance retainer that covers API version updates.