CUSTOM APPSShopify App Development

Got a Business Problem Shopify Doesn’t Solve? We’ll Build the Fix

When no app in the store fits the way you work, we build one that does.

As an official Shopify partner, our team develops custom apps, integrations and automations that remove manual work and fill the gaps in your store. We always check what Shopify and existing apps can already handle first, so you only pay for what’s genuinely missing.

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Official Shopify Partner Since 2015 · Shopify store migration, design and development. View profile ↗
20+ years in ecommerce

What we build

  • Custom Shopify appsTools built around one store’s way of working
  • Public appsApps for many merchants, from plan to maintenance
  • API integrationsSuppliers, ERP, CRM, shipping and fulfillment
  • Shopify automationRules-based workflows and AI-assisted steps
  • Support & maintenanceFixes, updates and changes after launch

Scope is confirmed after we review your Shopify plan, access and data.

For store owners

Where does Shopify stop working the way your business does?

Store owners usually reach us with one of these six headaches. A custom app, an integration or a small automation can often fix it.

Systems that never talk to each other

Someone retypes orders, stock counts and customer records between Shopify and your ERP, CRM or supplier portal.

Weekly reports built by hand

Every week a person exports files, matches rows and chases down mismatches in a spreadsheet.

Problems nobody notices

A stock error or a stuck order sits between tools, and nobody knows whose job it is to fix it.

A rule that is yours alone

Special pricing, order routing, approvals or product data that neither Shopify nor the App Store handles.

An app that lets you down

The app you depend on runs slowly, breaks, has gone out of date or comes close to what you need without quite getting there.

An app idea of your own

You have an internal tool or a fresh idea and want it running as a Shopify app, for one store or for many.

Shopify app development services

Shopify app development services we offer

Start with one focused app or take on a bigger project. Before we agree a scope, we check which tools, data and access are available.

Custom Shopify apps

  • Admin tools for orders, products and customers
  • Custom data, settings and business rules
  • Built on Shopify’s Admin API
  • Installed on your store, or your Plus organization

You get: A custom app for your store, with the agreed features documented and tested.

Shopify API integration

  • Suppliers, ERP, CRM and accounting
  • Inventory, shipping and fulfillment systems
  • One-way or two-way sync, where the other system allows it
  • Retries, logging and error alerts

You get: Mapped data flows, and a named owner for every error.

Workflows & internal tools

  • Order routing, tagging and approvals
  • Reporting and reconciliation views
  • Dashboards for your team
  • Queues for items that need a person

You get: A daily-use tool shaped around how your team already works.

Shopify automation

  • Rules-based workflows and scheduled jobs
  • Shopify Flow where it already does the job
  • Functions and extensions where your plan supports them
  • Alerts when something fails

You get: An automation with set triggers, set limits and an off switch.

Existing app improvements

  • Review of an app you already use
  • Troubleshooting, fixes and performance work
  • Updates for API and platform changes
  • Documentation and handover

You get: A written diagnosis, a fix plan and agreed changes, with no surprise rebuild.

Public Shopify apps

  • Planning and architecture
  • Merchant onboarding and billing
  • Preparation for Shopify’s app review
  • Maintenance after launch

You get: A public app made for many merchants. The agencies and founders section below has more.

Our approach

Pick the right tool first

Sometimes you don’t need a custom build at all. We look at what already exists before we suggest writing code.
First choice

Start with what Shopify offers

A native feature, Shopify Flow or an App Store app, if one does the work.

  • No custom build presumed
  • Lower cost and less upkeep
  • Your team keeps tools it knows
When there’s a gap

Build only what’s missing

One focused app, integration or automation that covers the gap and nothing more.

  • We check access and feasibility first
  • Upkeep agreed at the start
  • Documented so you can take it over
Always

Your team stays in charge

Clear rules on what runs by itself and what waits for a person to approve it.

  • Prices, refunds and customer messages need sign-off unless agreed
  • Checks for missing data and failed runs
  • An easy way to pause or roll back
Example projects

What a Shopify app project could look like

Three typical starting points. Each lays out the input, what the app does, the result and who makes the call.
Supplier sync

A supplier stock and cost feed

Starts with
A supplier file or API with stock and cost data
What the app does
Matches supplier items to your products and updates inventory on a schedule
Output
Updated stock levels and a list of unmatched items
Human review
Your team decides what to do with unmatched or out-of-range items
ERP link

Orders sent to your ERP

Starts with
New paid Shopify orders
What the app does
Sends order data to the ERP and writes back status and tracking details
Output
Orders in both systems, with failed sends flagged
Human review
A named person resolves flagged orders
Reconciliation

A payout and order reconciliation view

Starts with
Order, refund and payout data
What the app does
Groups and matches records and highlights differences
Output
A report your finance team can check and export
Human review
Finance confirms the differences before any change is made

These are illustrations, not past client projects. For each store we confirm feasibility, data availability and effort.

Shopify API integration

Connect Shopify to the systems you already use

We build on Shopify’s APIs and on the other system’s API, file exports or connector, whichever each side supports.

Suppliers & inventory

Stock, cost and product feeds, purchasing workflows and inventory across several locations.

ERP & accounting

Orders, customers, invoices and payouts moving between Shopify and your back office.

CRM & marketing

Customer, order and segment data passed to the tools your sales and marketing people work in.

Shipping & fulfillment

Labels, tracking and fulfillment status shared with carriers, 3PLs and warehouse systems.

What we confirm before we quote. Which systems are involved, what data moves, which way and how often, and what API access you have. Systems differ in what they allow, and some Shopify capabilities depend on your plan.

Shopify automation

Rules first, AI where it helps

Automation should take repeated work off your team without taking the decisions away from them.

Rules-based automation

Plain instructions, like “when stock drops below this level, create a task for purchasing.” They behave predictably, they’re simple to test and your team can follow them.

AI-assisted workflows

AI can draft product content, sort incoming requests or summarize reports. A person reviews the result before anything customer-facing, price-related or financial changes.

How we use AI in development. Our developers may use AI-assisted coding tools. They still own the architecture, code review, testing and delivery, and nothing ships without that review.

For agencies and app founders

Got a Shopify app to build for a client or yourself?

Our developers handle the technical build while you run the client relationship or the business.

Agencies and client projects

  • Custom apps and integrations for your clients’ stores
  • White-label development under your brand
  • Specs reviewed with your team before work starts
  • Scope, ownership and hosting agreed per client

Good for: agencies that need more development capacity but no full-time hire.

Founders and public apps

  • Product planning and technical architecture
  • Merchant onboarding and billing
  • Preparation and submission for Shopify’s app review
  • Maintenance and updates after launch

Good for: founders making one app for many merchants.

About App Store approval. Shopify reviews public apps and has the final say, and apps with limited visibility face the same review requirements. We build to Shopify’s published requirements, but we can’t promise approval or a date.

Hire Shopify developers

Hire a Shopify app developer for one project or for ongoing work

Begin with a defined project, or bring in a dedicated Shopify developer who gets to know your store and your people.
Defined project

A build with a fixed scope

A set brief, like one app or one integration, with deliverables agreed in advance.

  • A written scope and acceptance criteria
  • Testing and handover included
  • Works well when the specs are clear
Dedicated support

A dedicated Shopify developer

Hire dedicated Shopify developers for continuing work on your own store or your clients’ stores.

  • One developer who knows your setup
  • A backlog you set the order of
  • Suits steady, ongoing improvements
After launch

Ongoing maintenance

Fixes, updates and small changes after a project goes live.

  • Monitoring and bug fixes
  • Updates for Shopify changes
  • Retainer arrangements

How engagement works. After we review the work, your proposal sets out the model, team size and any commitments.

Ownership & support

You decide who owns and hosts the app

There’s no one standard setup. We agree the arrangement that fits your budget and plans, and it changes the cost.
Option 1

Full ownership transfer

The code and the rights come to you. You or your team host and run the app.

  • Code and rights pass to you
  • You host it on your own hosting
  • The cost reflects the transfer
Option 2

We host the finished app

We keep the code, host the finished app and keep it running.

  • You use the app and we run it
  • A hosting fee once the project is done
  • The cost structure differs from a transfer
For agencies

White-label development

We build behind your brand for your clients, on whatever ownership terms you need.

  • Your brand stays in front of your client
  • Ownership and hosting set project by project
  • Partnership terms agreed at the start

Support after launch

Most projects come with 30 days of free support, and on larger projects we may stretch that. Once it ends, an optional retainer covers fixes, updates and changes. Your proposal spells out the exact terms.

What you receive

What you get with a project

Your proposal lists exactly what each project includes.
01

Written scope

The problem, users, data, integrations and acceptance criteria, all agreed before work begins.

02

The app or integration

Built to the agreed scope and installed on your store, or sent in for review if it’s a public app.

03

Testing and handover

Checks for normal use and for failures, plus documentation and a walkthrough with your team.

04

Operating arrangements

Ownership, hosting, subscriptions and support, spelled out in writing.

How we measure it. We agree a starting baseline and measures that match the problem, such as manual steps, processing time, error rates and reliability. Sales and conversion rates depend on other factors too.

How costs work. The price depends on scope, integrations, ownership and support. We quote once we’ve reviewed your specifications, and the clearer they are, the closer the estimate.

How it works

From first idea to a working app

We open with whether we’re a good fit. We confirm technical feasibility before we give you a quote.
1

Share the idea

Tell us the problem, the systems involved, your Shopify plan and the outcome you want.

Review
2

Confirm the approach

Existing features, an App Store app or a custom build. We settle scope, access and ownership.

Scope
3

Build and test

We build the agreed app or integration and test it for normal use and for failures.

Build
4

Launch and support

We document it, hand it over and begin the agreed support.

Launch
Storefront work

Need layout or storefront changes instead?

App development deals with functionality, data and automation. Page layouts, product pages and how your store looks come under our Shopify design services.

Our wider ecommerce work

Results we’ve delivered for online businesses

These come from our ecommerce and marketing work for real businesses. They are not app development results.
View all case studies
E-bike and bike finance platform, Australia
Ecommerce SEOAI Search (AIO)Local SEO

E-bike and bike finance platform, Australia

SEO, AI search and local SEO for an online bike and e-bike finance platform. Over 34 months: 97% of keywords on Google’s page one and 1,259 conversions a month.

Read the case study
Gaming and electronics retailer, Australia
OpenCart to ShopifyStore Design

Gaming and electronics retailer, Australia

An urgent OpenCart to Shopify move for an Australian electronics and gaming retailer whose store had broken. Live in four weeks, with checkout cut from six steps to one page and rankings protected by 301 redirects.

Read the case study
Adventure and eco-tourism business, New Zealand
Ecommerce SEOContent Marketing

Adventure and eco-tourism business, New Zealand

SEO for a New Zealand adventure and eco-tourism business. In six months: organic traffic up 121% and conversions more than doubled to 1,931 a month.

Read the case study
Client reviews

What clients say about working with our team

Real reviews from real clients.
Read all reviews

Web commerce pros created a really lovely design for our website. They also changed the layout for our images and updated/resized images so that the site is overall much more attractive. We have been receiving a lot of positive feedback from customers on the ease of use and the overall look of our site. In addition, we are very grateful to Roy for coming up with a creative solution for allowing customers to easily create their own quotes, which has been very helpful to both our operations and our customers.

Anna Flanguagelizard.com
Design & custom features

The team at Web Ecommerce Pros did an excellent job with our site migration. Roy and his team took great care in migrating the data from our 17yo Yahoo store to ensure a seamless transition at the time of launch. They showed excellent communication when site changes needed to be made prior to launch and also helped us choose the appropriate apps to attain the functionality we were looking for with our site.

ebuilderdirect.comebuilderdirect.com
Turbify to Shopify migration

I continue to enjoy working with this company. They created the most beautiful website ever! They are proactive and helped get my product off the ground quickly. Their knowledge in navigating the backend of Shopify as well as social media has been a huge help. I trust them implicitly and bonus they are fun to collaborate with.

Melissa
Shopify store
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FAQ

Questions to settle before a Shopify app project

Straight answers on apps, integrations, ownership and cost.

App development

A custom app is built for one store, or for the stores in one Plus organization. “Private app” was the old name for the same thing. New custom apps are now created through the Dev Dashboard in Shopify, and legacy custom apps already in use keep working.

Often an existing app or a built-in Shopify feature does the job, and we’ll tell you so. We look at those first and suggest a custom build only when there’s a clear gap.

Yes. We help with planning, onboarding, billing, submission and maintenance. Shopify reviews every public app and decides whether to approve it, so we can’t guarantee approval or give you a date.

Yes, white-label development is something we offer agencies. We agree ownership, hosting and how we communicate with your client on each project.

Let’s talk

What should your Shopify app fix?

Tell us how your business works today, which systems are involved and what you’d like to happen instead. We’ll talk through feasibility and a sensible scope. Let us know if you’re a store owner, an agency or an app founder.

Please leave out passwords, API keys and customer information.

Book a Call

Or call 888-711-2347

Discuss your app

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