Shopify App Development for Custom Apps, Integrations & Automation
Need Shopify to do something your current setup cannot?
Uptek provides Shopify app development for ecommerce businesses that need custom functionality, integrations, automation or internal tools built around the way they actually operate.
As a Shopify app development company, we build custom Shopify apps, public apps, API integrations, embedded admin tools, Shopify Functions, checkout extensions and customer account features.
You do not need to come to us with a technical specification. Tell us what needs to happen, what is getting in the way today and which systems are involved. We will help you decide whether the right solution is a custom app, an integration, an extension or something Shopify already supports.
What We Build
Our Shopify app development services cover both merchant-specific applications and apps built for wider distribution.
The scope depends on the problem you are trying to solve.
Custom Shopify Apps
We provide custom Shopify app development when native Shopify features or existing App Store apps cannot handle an important requirement properly.
A custom app can manage internal workflows, add customer-facing functionality, connect business systems or run processes in the background.
That can include custom pricing, B2B workflows, product configuration, order processing, inventory management, customer portals, reporting or functionality unique to your business.
Shopify Integrations
Shopify rarely operates on its own.
Our Shopify integration development work connects Shopify with ERP, CRM, PIM, WMS, 3PL, accounting, fulfillment, subscription, marketing and other systems.
We can synchronize products, inventory, customers, orders, fulfillment data and other information based on how your business needs the systems to work together.
Shopify Admin Apps
Sometimes the customer does not need a new feature. Your team does.
We build embedded Shopify apps and internal tools for order management, reporting, approvals, product operations, supplier workflows, integration controls and other processes that are difficult to manage through Shopify admin alone.
Shopify Automation
If your team keeps repeating the same Shopify task, it may be worth automating.
We can automate order routing, inventory updates, product changes, fulfillment actions, tagging, metafield updates, data transfers and other repeatable workflows using the right mix of Shopify apps, webhooks, Shopify Flow and Functions.
Shopify Functions & Extensions
We build custom functionality using Shopify Functions and supported extensions when stores need more control over discounts, validation, delivery rules, checkout experiences or customer accounts.
For more advanced Shopify Plus requirements, our [Shopify Plus development] team can also handle the wider checkout, B2B, integration and storefront work around the app.
Public Shopify Apps
Planning to build an app for other Shopify merchants?
We develop public Shopify apps with the backend, merchant interface and Shopify integration required to operate across multiple stores.
That can include authentication, permissions, billing, webhooks, merchant onboarding, embedded interfaces, app settings and preparation for Shopify App Store distribution.
Problems We Help Solve
Most leads looking for a Shopify app development agency are not really looking for “an app.” They are looking for a way around a business problem their current Shopify setup cannot solve.
We commonly help with requirements such as:
01
Shopify and ERP inventory not staying in sync
02
Orders needing to move automatically to a warehouse or 3PL
03
Staff manually copying data between Shopify and another system
04
Existing apps handling only part of a business workflow
05
Custom B2B pricing, approval or ordering requirements
06
Complex products that need a configurator or buying flow
07
Custom reports or dashboards for internal teams
08
Customer account functionality that Shopify does not provide by default
09
Checkout rules or promotional logic that need custom development
10
Supplier, CRM, fulfillment or marketing platform integrations
11
Existing Shopify apps that need new features or technical updates
12
Public app ideas that need to become working Shopify products
The solution is different for each business. We start with the workflow and then decide what actually needs to be built.
Shopify Work That Backs It Up
Custom Shopify development should be easier to trust when you can see the work behind it.
Joovv
241%
increase in sales
72%
Growth in conversions
Uptek has worked with Joovv on Shopify Plus development that includes custom web applications, checkout extensibility and third-party integrations.
The work has included integrations with services such as HubSpot and duty calculation tools, geo-based logic, custom storefront functionality and more recent Shopify Functions work.
Across the wider Shopify engagement, Joovv reported a 241% increase in sales and 72% growth in conversions.
Joovv case study
Filorga US
256%
increase in sales
191%
Growth in conversions
Filorga US, part of Colgate-Palmolive, worked with Uptek on a headless Shopify Plus implementation involving custom features, backend integration and advanced frontend development.
The wider project reported a 256% increase in sales and 191% growth in conversions.
Filorga US case study
These results come from the wider ecommerce engagements, not app development alone. The projects are useful here because they show the type of Shopify Plus, integration and custom development work our team handles.
Connect Shopify With the Rest of Your Business
A large part of Shopify custom app development is making Shopify work properly with systems that sit outside Shopify.
Your ERP may hold the official inventory count. Your PIM may control product information. Your warehouse may handle fulfillment. Your CRM may hold customer activity. Your company may also have internal software built around processes unique to the business.
Our Shopify API developers can connect these systems so the right information moves automatically.
ERP Integrations
Connect products, inventory, orders, customers and fulfillment data between Shopify and your ERP.
CRM Integrations
Send customer, order or activity data between Shopify and the platform used by your sales, service or marketing teams.
WMS & 3PL Integrations
Send orders to warehouses or fulfillment partners and return inventory, tracking and fulfillment information to Shopify.
PIM & Product Data
Keep Shopify product information connected with the system responsible for managing your product catalog.
Custom API Integrations
If your company uses proprietary software or another platform with a suitable API, we can build the integration layer between it and Shopify.
A reliable integration also needs to account for failures. We define which system owns each type of data, when information should move and what happens if one side is temporarily unavailable.
Custom App or Existing Shopify App?
You do not automatically need custom development.
Sometimes an existing Shopify app already solves the requirement well. In that case, installing or configuring the existing solution may be faster and more practical than rebuilding it.
A custom app becomes more useful when the missing functionality affects a core workflow, creates recurring manual work, causes data problems or limits an important part of the customer experience.
If what you need is mainly storefront functionality rather than application logic, our Shopify theme development services may be the better route.
Before recommending custom development, we look at:
Why Uptek?
There are plenty of companies that can write code. The more important question is whether they understand how the app fits into the rest of your Shopify operation.
01
Shopify Is Our Core Platform
That means we understand what happens outside the app as well as what happens inside it.
Our team works across Shopify apps, APIs, themes, checkout, Functions, integrations, Shopify Plus and ongoing development.
02
We Start With the Problem
We do not recommend custom software simply because you asked about custom software.
If Shopify already handles the requirement, we use Shopify. If an existing application is the better option, we will tell you. We build custom functionality when there is a clear reason to own it.
03
One Team Across the Shopify Stack
An app can affect the storefront, checkout, customer accounts, inventory, analytics or fulfillment.
Keeping those dependencies with one Shopify team reduces the handoffs that happen when separate developers are responsible for each part of the store.
04
We Can Work With Existing Code
You do not have to rebuild an application just because another team created it.
Our Shopify custom app developers can review the current code, integrations and architecture, keep what works and improve the parts that need attention.
05
Support After Launch
An application does not stop changing once it goes live.
Shopify evolves, third-party APIs change and your business will need new features. Our [Shopify maintenance services] cover ongoing Shopify app support, bug fixes, integration changes and continued development.
06
Flexible Development Support
Some businesses need one custom app. Others need Shopify development every month.
If you need continued technical capacity after the initial project, you can also [hire Shopify developers] through Uptek for ongoing development work.
How We Build Shopify Apps
You do not need to prepare a detailed technical document before speaking with us. We start by understanding what needs to happen.
01
Understand the Requirement
We look at the current process, the problem you are trying to remove and the people or systems involved.
For integrations, we also identify what data needs to move and which platform should control it.
02
Choose the Right Approach
We determine whether the requirement needs a custom application, Shopify integration, Function, extension, existing app or another solution.
This keeps us from overengineering something Shopify can already handle more simply.
03
Scope the Project
We define the core features, integrations, workflows and dependencies so you know what is being built.
For larger applications, we can separate the essential first version from features that make more sense in later phases.
04
Build and Test
Our Shopify app developers handle the frontend, backend, APIs and Shopify functionality required by the project.
Testing covers the complete workflow, including permissions, different data conditions, integration failures and other situations that matter in real use.
05
Launch and Support
Once the application is approved, we deploy it using the appropriate Shopify distribution method.
We can then stay involved for Shopify app support, improvements, API updates and future functionality.
Already Have a Shopify App?
Not every project starts from scratch.
You may already have an application that works but needs new functionality, better integrations or technical cleanup.
We review the existing application first.
Our team can help with:
If the current foundation is good, we work with it. If something genuinely needs rebuilding, we explain why before recommending it.
Shopify Plus App Development
Larger Shopify stores often have more systems and more business rules behind each transaction.
Our Shopify Plus app development work can support B2B commerce, checkout extensibility, Shopify Functions, customer account extensions, internal tools and complex integrations with ERP, CRM, PIM, WMS, 3PL and other systems.
Uptek’s wider Shopify Plus development experience also means we can look beyond the app when the requirement touches checkout, storefront functionality, headless architecture or another part of the Shopify Plus setup.
Joovv is one example of this. Uptek’s work with the brand has grown into a long-term Shopify Plus partnership covering custom apps, checkout, Functions, integrations, theme development and ongoing support.
Who We Work With
Our Shopify application development work is a good fit for businesses that have moved beyond straightforward storefront requirements.
Growing Shopify Brands
You have a working store but manual processes, disconnected systems or existing applications are beginning to limit how the business operates.
Shopify Plus Merchants
You need more advanced integrations, Functions, checkout functionality, B2B workflows or internal tools across a more complex ecommerce setup.
Ecommerce & Operations Teams
Your team needs Shopify to work more closely with ERP, CRM, warehouse, fulfillment or proprietary business systems.
SaaS & Product Teams
You are building a public Shopify app for other merchants and need a development team that understands both software development and the Shopify platform.
If the requirement is smaller, that is fine too. We scope the solution around the problem rather than around the size of the company.
Shopify App Development Cost
There is no meaningful flat price for custom Shopify app development because the scope can vary from one focused integration to a complete public application.
A project usually becomes more complex as you add custom business logic, external systems, merchant or customer interfaces, large data flows, authentication, billing and multiple workflows.
A focused automation or Shopify integration will therefore have a very different scope from a multi-merchant public app.
We first understand what the application needs to do, then define the work required to build it.
How Long Does Development Take?
The timeline depends on the functionality, integrations and number of workflows involved.
A focused Shopify API integration has fewer moving parts than a public app with onboarding, authentication, billing, dashboards and several third-party services.
Existing systems matter too. An integration is easier to plan when the external API is well documented and reliable.
Once we understand the requirement, we can define the dependencies and identify whether the project should launch as one complete build or start with a smaller first version.
Shopify App Development FAQs
Tell Us What You Need Shopify to Do
You do not need to decide whether the solution is a custom app, API integration, Shopify Function, webhook or extension before contacting us.
Show us the current workflow, tell us what needs to change and let us know which systems are involved.
We will help you turn that into a clear Shopify development plan.