Shopify app development

Shopify appdevelopment

Custom apps for your own store and public apps for the Shopify App Store — built on Shopify's React Router 7 template with Polaris, Functions and extensions.

Shopify case studies
31
Client brands
43
Team specialists
38

Quick answer

What is a custom Shopify app?

A custom Shopify app adds features your store needs that no off-the-shelf app does well — or connects Shopify to your own systems. It is installed only on your store, built on Shopify's APIs, and can add admin screens, checkout and theme extensions, Shopify Functions and background jobs. Public apps work the same way but are listed on the Shopify App Store for any merchant to install.

  • Built on Shopify's React Router 7 app template
  • Polaris admin UI and App Bridge
  • Functions, extensions, webhooks and billing

What we build

Shopify app development services

From a single private app for one store to a public app with billing and thousands of installs.

Get a fixed quote
  • Custom Shopify apps

    Private apps that automate your operations or add features built exactly around how your business works.

    • Admin GraphQL API
    • Webhooks
    • Background jobs
    App or custom build?
  • Public App Store apps

    Apps built to Shopify's review requirements, with onboarding, billing and support tooling — ready to submit and scale.

    • App Store review
    • Billing API
    • Onboarding
  • Shopify Functions

    Custom discounts, bundles, shipping and payment rules running inside Shopify's checkout, fast and reliable at any scale.

    • Discounts
    • Bundles
    • Delivery rules
  • Checkout and theme extensions

    Checkout UI extensions and theme app extensions, so your app adds blocks merchants can place without editing code.

    • Checkout UI
    • Theme app blocks
    • Customer accounts
  • Integrations and data sync

    Two-way sync between Shopify and your ERP, CRM, accounting, marketplace or warehouse systems, with retries and logging.

    • ERP
    • CRM
    • Marketplaces
    API & integrations
  • Remix to React Router 7 upgrades

    Move an existing Remix-based Shopify app to the React Router 7 template without breaking installs or billing.

    • Remix
    • React Router 7
    • Upgrade
    The migration guide
  • Admin UI and embedded apps

    Clean admin screens in Polaris that feel native to Shopify, with App Bridge navigation and modals.

    • Polaris
    • App Bridge
    • Embedded
  • App maintenance and API upgrades

    Quarterly API version upgrades, monitoring and new features, so your app keeps passing review and working for merchants.

    • API versions
    • Monitoring
    • Support

Build options

Three ways to build your Shopify app

Every app gets a fixed, itemised quote. Start small and extend it once merchants use it.

  • Start small

    Custom app for your store

    One focused app that automates a process or adds a feature to your own store.

    • Requirements workshop
    • Admin UI in Polaris
    • Webhooks and jobs
    • Install and handover
    Get a fixed quote
  • For scale

    App product team

    A dedicated team growing your app: new features, performance work and support tooling every month.

    • Monthly roadmap
    • Performance at scale
    • API upgrades
    • Merchant support tools
    Get a fixed quote

In every app

What every Shopify app project includes

  1. Shopify's React Router 7 app template
  2. GraphQL Admin API, not legacy REST
  3. Secure OAuth and session handling
  4. Mandatory privacy webhooks
  5. Automated tests and error monitoring
  6. Hosting and deployment set up
  7. Code you own once paid in full
  8. Documentation and 30 days of post-launch fixes

How it works

From idea to installed app

Apps are software products, so we agree the problem first, then ship in sprints you can test in a development store.

  1. Free 30-minute call

    Discovery

    The problem, the merchants and the APIs involved — and whether an existing app already solves it.

  2. Within 48 hours

    Spec & fixed quote

    Features, data model, extensions and price in writing, before any code.

  3. Weekly dev-store demos

    Build in sprints

    Each sprint installs on a development store, so you test real features as they land.

  4. 30 days of fixes

    Review & launch

    Install on your store or submit to the App Store, then monitor and improve.

Straight answers

Questions worth asking Questions worth asking

The things brands actually ask us before a build — answered properly, including the times the answer is that you do not need us.

  • How much does Shopify app development cost?

    It depends on what the app does. A focused custom app for one store costs far less than a public app with billing, onboarding and extensions. After a short call we send a fixed, itemised quote, so the full cost is clear before we start.

  • Should I build a custom app or use one from the App Store?

    Use an existing app when it does the job well — it is cheaper and maintained for you. Build a custom app when apps are close but not right, when you are paying for several apps to do one job, or when you need to connect Shopify to your own systems.

  • What technology do you build Shopify apps with?

    Shopify's React Router 7 app template with TypeScript, the GraphQL Admin API, Polaris and App Bridge, plus Shopify Functions and extensions where they fit. Apps are hosted on infrastructure you own, such as Fly.io, Render or your cloud account.

  • Can you help get our app approved on the Shopify App Store?

    Yes. We build to Shopify's app requirements from day one — performance, privacy webhooks, billing and onboarding — and prepare the listing and review submission with you.

  • Who owns the app's code?

    You do. Once the project is paid in full, ownership of the custom code we write for you passes to you, and the repository and hosting stay in your accounts.

  • Do you maintain Shopify apps after launch?

    Yes. Shopify releases a new API version every quarter, so apps need regular upgrades. Maintenance plans cover API upgrades, monitoring, fixes and new features.

Still weighing it up?Tell us the situation

Start a project

Let's build yours Let's build yours

Tell us where you are — a new build, a migration or a project that has stopped moving. You get a fixed scope and a plan in writing, not a sales call.

  • Fixed quote in 48 hoursScope, milestones and price in writing before anything starts.
  • No obligationThe plan is yours to keep, even if you build it somewhere else.
  • Straight to the teamYou talk to the people who design and build it, not an account manager.