Since 2010
Building Software
Inside the Platform. Beyond the Template.
Shopify App Development Services
We build on Shopify properly: custom apps that extend the platform, headless storefronts on Hydrogen, and integrations that respect its rails. App-store-grade code, fixed pricing, full source ownership.
- 15+
- Years Building Software
- 9,000+
- Projects Delivered
- 500+
- Engineers
- 25+
- Countries Served
Trusted by the brands we build for
9,000+
Projects Delivered
3,900+
Apps Published
500+
Engineers
insight
What building on shopify properly means
Shopify rewards teams that work with its rails: checkout extensibility instead of hacks, admin extensions instead of screen scraping, and APIs used within their real limits. The failure mode is an agency that fights the platform until updates break everything; the craft is knowing exactly where Shopify ends and your requirements begin.
We build custom apps (public and private), headless storefronts, and integrations to that standard, with app-store review readiness included when you intend to publish. Wider custom commerce context sits on our eCommerce app development page.
What our shopify app development services cover
From private automation to app-store-published products.
Custom shopify apps
Admin and storefront apps that add the capabilities your store needs, built on current Shopify extension standards.
- ✓Admin UI extensions
- ✓Storefront app embedding
- ✓GraphQL API usage
- ✓Webhook-driven workflows
App store publication
Public apps taken through Shopify's requirements: linting, review process, billing integration, and listing assets.
- ✓Billing API integration
- ✓Shopify CLI tooling
- ✓Review process management
- ✓GDPR webhook compliance
Headless storefronts
Hydrogen and Storefront API builds when the theme layer cannot deliver the experience your brand needs.
- ✓Hydrogen framework builds
- ✓Storefront API integration
- ✓Preview deployments
- ✓Core Web Vitals budgets
Theme development
Custom Online Store 2.0 themes and section work that stays maintainable through platform updates.
- ✓OS 2.0 sections and blocks
- ✓Metafield-driven content
- ✓Performance-optimised themes
- ✓Editor-friendly settings
Integrations and automation
ERP, OMS, 3PL, and marketing stack connections with queue-based reliability and reconciliation.
- ✓ERP and 3PL sync
- ✓Order and inventory flows
- ✓Rate-limit-safe design
- ✓Reconciliation tooling
Checkout extensibility
Custom checkout experiences within Shopify's supported extension points, upgrade-safe by construction.
- ✓Checkout UI extensions
- ✓Function-based discounts
- ✓Post-purchase flows
- ✓Upgrade-safe patterns
What every engagement includes
Every Shopify project ships with the following, agreed in writing before the first sprint begins.
Discovery workshop
A structured workshop maps your goals, users, and constraints into a scoped Shopify roadmap with a fixed written quote before any sprint starts.
Named senior team
You get named, senior engineers with CVs you can review, not a rotating bench. The people in the kickoff are the people who ship.
Sprint demos every two weeks
Working builds are demoed live each cycle with CI running on every merge, so progress is visible in software, not slideware.
100% source-code ownership
All Shopify source, configurations, designs, and documentation transfer to you on delivery with no licensing strings or vendor lock-in.
60 days of post-launch support
Engineering time is on standby for two months after go-live to triage defects, tune performance, and stabilise the release at no extra cost.
12 months of free updates
Compatibility updates, security patches, and platform upgrades ship free for a full year after handover.
What you can build on shopify
Products our team ships on the platform, built to its standards.
Private merchant app
A custom app automating your store's specific operations, from pricing rules to fulfilment logic.
Public app store product
A Shopify app built, billed, and reviewed for the app store, with listing and compliance handled.
Headless brand storefront
A Hydrogen storefront with the UX your brand needs, on Shopify's commerce rails underneath.
Enterprise integration layer
Reliable ERP/OMS/3PL synchronisation that survives rate limits and Black Friday order volume.
Custom theme system
An OS 2.0 theme your marketing team can edit without breaking, with performance baked in.
How a Shopify Project Runs
Six stages, each with a sign-off gate before the next begins.
- 01
Discovery
We map your Shopify goals, users, and constraints in a structured workshop, ending in a fixed written quote and an architecture risk list.
✓ step 01 complete - 02
Solution design
The Shopify architecture, integrations, and delivery plan are designed and reviewed before build work starts, so scaling later is not a rewrite.
✓ step 02 complete - 03
Foundation sprint
Repositories, CI, environments, and a walking skeleton are set up first. Something real runs on a staging URL before feature sprints begin.
✓ step 03 complete - 04
Sprint delivery
Two-week sprints with live demos every cycle. Shopify work is reviewed, tested, and merged continuously, so scope surprises surface early.
✓ step 04 complete - 05
Hardening and launch
Performance, security, and accessibility checks run against agreed budgets, followed by a staged Shopify launch with monitoring from hour one.
✓ step 05 complete - 06
Support and handover
60 days of included support, 12 months of free updates, and documentation that lets your internal team own the system with confidence.
✓ step 06 complete
The stack behind our shopify builds
Default choices, stated with reasons.
App architecture
Current Shopify CLI and extension standards (admin UI, checkout UI, functions), so apps survive platform updates instead of fighting them.
APIs
GraphQL-first usage with rate-limit-aware design and webhook-driven state, because REST patterns that poll are the first thing to break at scale.
Headless
Hydrogen with Storefront API where headless is justified, with hosting, preview deployments, and Core Web Vitals budgets enforced.
Reliability
Queue-based integration layers with retries and reconciliation for ERP/OMS flows, tested against realistic order volumes.
How intelligence flows through the build
What each layer reads, and what it changes.
Product recommendations
Personalises discovery inside the storefront.
Reads
Catalogue, orders, browsing behaviour
Changes
Recommendation slots and sorting
Inventory intelligence
Forecasts stock and flags sync anomalies.
Reads
Inventory levels, sales velocity
Changes
Stock alerts and sync corrections
Merchant copilot
Answers ops questions from store data in plain language.
Reads
Admin data, app logs
Changes
Reports and suggested actions
What's included, standard
The baseline on every Shopify engagement. Not an upsell tier, just the floor.
Fixed written quote
The price agreed at discovery is the price you pay, with change handled through explicit scope changes rather than silent drift.
Solution architecture document
System design, data flows, and technology decisions written down so your team can audit and own the result.
Dedicated project manager
One accountable point of contact with real authority over the delivery, not a message relay between time zones.
QA on every build
Automated and manual testing on each Shopify release candidate, with defects triaged before anything reaches production.
Security review
A checklist-based security pass covering authentication, data handling, and dependency vulnerabilities before launch.
CI/CD and environments
Pipelines, staging, and preview environments configured from week one, so releases are routine rather than dramatic.
Analytics and monitoring
Instrumentation wired before launch so you can see real user behaviour and system health from day one.
Documentation and handover
Code comments, runbooks, and architecture notes written for your next developer rather than for our convenience.
Platform compliance review
A review against current Shopify requirements and deprecations so the build survives platform updates.
Case studies that speak volume
Etihad Airways
A high-traffic consumer platform our team ships and operates at national-carrier scale, the same bar every build is held to.
1M+
Monthly Users
40%
Engagement Lift
PragPlay
A consumer platform from the same engineering system, proving the infrastructure core holds under real-time load with strict uptime demands.
500K+
Players
99.9%
Uptime
Marvel Studios
A high-volume consumer experience our team ships at global-release scale, the same discipline applied to every launch.
10M+
Streams
65%
Completion
/11
Why teams pick us for shopify work
The differences live in engineering habits, not pitch decks.
We work with the rails
Extension points and APIs used as intended, so platform updates improve your build instead of breaking it.
Rate-limit-aware design
GraphQL usage and webhook architectures designed for real API budgets, the difference between scaling and stalling.
App-store-grade delivery
Publication requirements, billing, GDPR webhooks, and review management handled when you intend to ship publicly.
Integration reliability
Queue-based ERP and 3PL flows with reconciliation, tested against peak order volumes rather than happy paths.
Track record since 2010
9,000+ projects and 3,900+ apps across 25+ countries, held to the same delivery bar as everything else.
Shopify app development FAQs
$ moxace launch --nowReady to Build on Shopify Properly?
Talk to our Shopify team about a platform-native build with fixed pricing and full source ownership.
- 01
Share your idea
a quick call, no deck required
- 02
See the live demo
every screen, admin to user
- 03
Launch with source
full code, your brand, your servers
Independent Build
Moxace is an independent software development company. We are not affiliated with, sponsored by, or endorsed by Shopify.
Why This Name
The phrase “Shopify clone” is used descriptively. It is how the software industry refers to building a platform with similar functionality, and how buyers search for one.
Who Built This
The design and codebase are built entirely by our in-house team. Nothing is taken from the Shopify website, applications, or brand assets.
Trademarks
Shopify and all third-party names and marks remain the property of their respective owners, referenced here only to describe the category of software we build.
Read the full legal notice on our disclaimer page.