Custom Shopify App Development
For when no app in the Shopify store does the thing your business actually needs.
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Private and custom apps on the Admin and Storefront GraphQL APIs
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Shopify Functions for discount, shipping, and payment logic
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Webhook-driven syncing into the systems your team already runs
GraphQL APIs
Admin and Storefront
Functions
Discounts, Shipping, Payments
Code Is Yours
Delivered In Your Repository
No App Fees
You Own It Outright
When the app store runs out of answers
Most requirements are met by an existing app, and we will point you at one when that is true — paying a monthly fee beats commissioning a build. Custom development earns its place when the logic is specific to how your business operates, when you are paying for four apps that each solve a fraction of the problem, or when the apps you rely on are quietly slowing the store down.
Stacked subscription costs
Four or five apps at monthly fees, each covering part of one workflow, adding up to more than a build would have cost outright.
App scripts slowing the store
Every installed app injects scripts into the storefront. A handful of them is often the single biggest cause of a slow Shopify site.
Logic that no app supports
Pricing rules, approval workflows, or fulfilment logic specific enough to your business that no generic app models them.
Manual re-entry between systems
Someone copying orders from Shopify into an ERP or accounting system daily, because no off-the-shelf connector fits the data.
What we build
Everything here runs on Shopify's supported extension points, so it survives platform updates rather than breaking on the next release.
Admin and Storefront API apps
Private and custom apps built against the GraphQL APIs for reading and writing store data programmatically.
Shopify Functions
Custom discount, shipping, and payment logic that runs natively on Shopify's infrastructure instead of as storefront JavaScript.
Checkout UI extensions
Custom fields, upsells, and validation inside checkout — the supported route now that checkout.liquid is retired.
Theme app extensions
App blocks merchandisers can drop into any section from the theme editor, with no code edits required.
Webhook integrations
Event-driven syncing so orders, customers, and inventory reach your accounting, ERP, or fulfilment systems as they happen.
Embedded admin interfaces
Custom screens inside Shopify admin built with Polaris, so your team works in one place rather than a separate tool.
What changes with a custom app
Before
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Five app subscriptions covering one workflow between them
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Storefront slowed by scripts from apps you barely use
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Someone re-keying orders into the ERP every morning
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Business logic that no available app can express
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App vendor changes pricing or sunsets the product
After
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One app that models your actual workflow
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No third-party scripts injected into the storefront
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Orders reaching your systems automatically via webhooks
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Logic built precisely to your rules
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You own the code — no vendor can withdraw it
How we build an app
Check the app store first
We look for an existing app that solves it before proposing a build. If one exists and fits, we will tell you — a monthly fee usually beats a development project.
Model the workflow
We map the actual process, including the exceptions people work around manually, because those are usually where the real requirement hides.
Build and test
Developed against a development store with real data volumes, so behaviour under load is known before it reaches your live store.
Deploy and document
Installed on your store, delivered into your Git repository, with documentation covering how it works and how to run it.
Custom Shopify app questions
Should we build a custom app or use one from the app store?expand_more
Use an existing app when one fits — it is almost always cheaper and better maintained, and we will say so rather than sell you a build. Custom development makes sense when the logic is specific to your business, when you are stacking several apps to cover one workflow, or when app scripts are measurably slowing your storefront.
What is the difference between a public app and a custom app?expand_more
A public app is distributed through the Shopify App Store to any merchant and must pass Shopify's review. A custom app is built for your store alone, installed directly, and never listed publicly. Nearly all client work is custom — you own it, and there is no review process or ongoing subscription.
Will a custom app slow down our store?expand_more
Done correctly it should be faster than the alternative. Work that runs server-side through Shopify Functions or webhooks adds nothing to page load, unlike storefront apps that inject scripts into every page. Where a storefront component is genuinely needed we build it as a theme app extension and measure its impact.
Can you integrate Shopify with our ERP or accounting system?expand_more
Yes, and it is a common request. We are a certified Zoho partner, so Zoho Books and Zoho Inventory integrations are routine. For other systems we build against whatever API they expose, using webhooks so data moves as events happen rather than on a nightly batch.
Do we own the app code?expand_more
Yes. It is delivered into your Git repository with documentation, and installed on your store. There is no licence, no subscription to us, and nothing preventing another developer from maintaining it later.
What happens when Shopify updates its APIs?expand_more
Shopify versions its APIs and announces deprecations well in advance. Because we build on supported extension points rather than workarounds, updates are usually a small maintenance task. We will flag when a version is approaching end of life if we are supporting the app.
Custom apps are one part of what we do
App work usually sits alongside a theme that has to surface it, or a migration that changes what the data looks like. See the full picture, or read about the pieces next to this one.
Also see: Shopify theme development · Shopify migration services