Shopify Application Development | Build & Publish

Q: How much does a Shopify developer cost?

The cost to hire a Shopify developer depends on your app’s complexity, required features, and overall business goals. At Mgroup, we offer flexible pricing models—hourly, project-based, or retainer—so the budget matches your scope. Clients choose us for long-term ROI and our expertise with Shopify architecture, APIs, and security. For a custom quote, contact our team for a discovery consultation.

Q: Why should I pay someone to build my Shopify apps?

Hiring an experienced Shopify app developer ensures your application is scalable, secure, and optimized for the Shopify platform. DIY or off‑the‑shelf tools often fall short on performance and UX. Mgroup builds custom Shopify applications that solve real business problems—automating back‑office workflows or adding customer‑facing features. We handle UI/UX, performance tuning for fast load times, seamless data integration, documentation, and ongoing support.

Q: How does a Shopify developer help me market my Shopify app?

Building the app is only the first step. A seasoned Shopify developer can position your app for discoverability and growth. Mgroup configures analytics to monitor usage and engagement, and we build with performance and search visibility in mind to support conversion from day one. If you want to expand your reach, schedule a Shopify app optimization consultation with our team.

Shopify App Development

Build, Customize, and Support Shopify Applications

Whether you need to create a Shopify application from scratch or extend the features of your existing Shopify app, Mgroup ensures high-quality development. We specialize in custom Shopify app development — providing tailored solutions across public, private, and custom apps for merchants and Shopify Plus brands. Our custom Shopify app developers work in your stack, not around it.

Hands editing an online store — Shopify Application

01 — Capabilities

Public Apps, Private Apps, and Custom Integrations

Our Shopify app development services cover all three Shopify app types: public apps distributed through the Shopify App Store, private apps installed on a single store via API credentials, and custom apps for Plus merchants with bespoke checkout and admin extensions. Every build uses Shopify's official surface — Polaris, App Bridge, OAuth 2.0, GraphQL Admin API, and webhooks — so your app stays compliant with Shopify's review process and breaking-change cycle.

Talk to an App Developer

Office desk flat lay — Shopify Application

02 — Apps we have built

Shopify Apps We Have Built

Mgroup Shopify applications are created to solve real eCommerce problems, not to fill an App Store slot. That is the difference a specialized Shopify app development company makes. We've shipped a Checkout UI Editor for Shopify Plus merchants, an Image Zoom app for PDP merchandising, a Dynamic Price engine for B2B and wholesale pricing rules, and a Scroll to Top theme block for Online Store 2.0.

Whether your app is a single-feature tool or a full platform extension, we plan, build, and ship it on the stack Shopify recommends — and we keep it running as Shopify ships changes. It is the fastest way to hire Shopify app developer expertise without the recruiting cycle.

Plan My Shopify App

Shopify Application

Shopify provides all the essential features out of the box, but if your business requires something more advanced, Shopify App Development is the key: we help you create Shopify application functionality that off-the-shelf tools cannot cover. With access to the Shopify App Store offering 13,000+ commerce apps, you can extend your store with specialized functionality—or build a custom app tailored to your unique business needs - exactly the ground our Shopify app development services cover.

Tech we build with

The Shopify stack behind every Mgroup app

The core APIs, frameworks, and surfaces we use to build maintainable Shopify apps — from embedded Polaris admins to checkout extensions, including the Store Credit API for balance and refund flows.

Talk to an App Dev

Shopify CLI

Official command-line tool that scaffolds, develops, and deploys apps. Manages tunneling, app config, and Shopify Functions builds.

Polaris design system

Shopify's React component library for admin UIs. Native look-and-feel, accessible by default, required for App Store approval.

GraphQL Admin API

Shopify's GraphQL endpoint for store data — products, orders, customers, metafields. Faster than REST, typed, batched.

Webhooks

HTTPS callbacks Shopify fires on store events. Used for inventory sync, order workflows, GDPR compliance, and uninstall hooks.

App Bridge

JavaScript SDK that embeds your app inside the Shopify admin. Handles session tokens, navigation, modals, and toasts.

Shopify Functions

WebAssembly extensions for checkout — dynamic discount, shipping, payment, and validation logic on Shopify Plus.

Capabilities

What Mgroup can build into your Shopify app

Six production-grade Shopify app capabilities — from custom app architecture and App Store-ready Polaris admins to Plus checkout extensions, OAuth-secured integrations, and webhook pipelines. Each one is shipped, documented, and handed off to your team.

See our apps

Custom Shopify App Development

Public, private, and Plus custom apps tailored to your store — Polaris admin, OAuth, billing, and the App Store review cycle.

Shopify App Store Listings

Listing copy, screenshots, billing setup, and the Shopify review cycle. As a Shopify app agency, we've shipped apps that passed review on first submission.

Polaris & App Bridge — admin UX that feels native

Embedded admin screens built with Shopify Polaris and App Bridge — accessible, fast, and native to the Shopify admin. Session-token auth, toasts, modals, and navigation handled out of the box.

Polaris React components →
App Bridge v3 →
Session tokens →
Toasts & modals →

OAuth, webhooks & secure integrations

OAuth 2.0, scoped permissions, encrypted token storage, signature-verified webhooks, and GDPR-compliant data handling — every Mgroup app passes security review on first submission.

OAuth 2.0 →
Webhook signatures →
GDPR endpoints →
Scoped permissions →

ERP & CRM Connectors

NetSuite, SAP, Microsoft Dynamics, HubSpot, Salesforce — Shopify connector apps tested end-to-end with retry and queue-backed handlers.

App migration to OAuth & embedded

Legacy app modernization — move from private API keys to OAuth, from redirect-based to embedded, and from REST to GraphQL Admin API.

Get a Shopify app quote

No-commitment scoping call · response within 1 business day

Custom app vs alternatives

Custom Shopify app vs off-the-shelf or solo dev

How a custom Shopify app built by Mgroup compares to an off-the-shelf App Store app or hiring a solo developer on the metrics that matter for scale.

Comparison of custom Shopify app by Mgroup vs off-the-shelf apps and solo developers
Criterion	Custom app by Mgroup	Off-the-shelf / solo dev
Tailored to your store	Built to your exact workflows & brand	Generic feature set, brand-agnostic
Polaris compliance	100% Polaris — passes review on first submission	Inconsistent UI · risk of review rejection
Shopify API knowledge	Senior team, all Shopify APIs, Plus partner since 2016	Limited surface area, learning curve
OAuth & security	OAuth 2.0, signed webhooks, GDPR built-in	Often missing — security audit fails common
App Store review process	Owned end-to-end · 90% first-submission pass	Trial-and-error · 3–5 rejection rounds typical
Maintenance & API churn	Retained team tracks every Shopify API release	Breaks on every major Shopify release
Performance & scale	Queue-backed handlers, retries, 99.9% uptime	Single-process · drops events at scale
Custom integrations	Any ERP / CRM / PIM — NetSuite, SAP, Salesforce	Pre-built connectors only · no custom logic
Billing & pricing logic	Custom Shopify Billing API setup, usage-based ok	Subscription only · no usage billing
Time to ship	8–12 weeks for public app · 4–6 weeks private	Available now · or months of solo dev
Code ownership	You own the repo, docs, and IP	Vendor-locked · or undocumented solo work
Best for	Plus brands & SaaS shipping a real product	Validating an idea before commissioning a build

Ready to ship a Shopify application that scales?

Get a free 30-min Shopify app scoping call — we'll review your concept, identify the right app type, and outline an App Store-ready build plan.

Book free app scoping See pricing

Process

How we build your Shopify application, step by step

A working Shopify app is not just code — it's a planned product, a reviewed listing, and a maintained service. Our six-step process turns an idea into an App Store listing or a custom Plus integration.

Product Discovery

Define the problem your app solves, the merchant segment, the pricing model, and the technical boundaries. We exit discovery with a specification, a wireframe set, and an effort estimate.

Scope Spec

UI/UX Design

Polaris-aligned screens for the embedded admin, an onboarding flow that earns first-install conversions, and a marketing page mockup for the App Store listing.

Polaris Onboarding

App Development

Built on Node.js, Remix, and React with the Shopify GraphQL Admin API, webhooks, and App Bridge. OAuth 2.0, scoped permissions, and encrypted token storage are non-negotiable defaults.

Node.js Remix GraphQL

QA & Security

End-to-end testing on multiple store types, edge-case validation, GDPR data handling, webhook signature verification, and a security audit before submission.

GDPR QA

App Store Submission

Listing copy, screenshots, billing setup, and Shopify's app review process — we've shipped apps that passed review on first submission. We handle the back-and-forth so you don't have to.

Listing Review

Post-Launch Support

Shopify ships breaking changes regularly. We keep your app compliant, monitor errors, update for new API versions, and ship feature releases on a steady cadence - the ongoing edge of a dedicated Shopify app development company.

Maintenance Monitoring

Plan my Shopify app

Pricing

Shopify application development cost & timeline

Transparent pricing for the three engagement models we use most often. Final quotes depend on scope, integrations, and listing complexity.

Private app

Single-store custom app.

$15,000/ from

4–8 weeks

Discuss private app

Discovery & tech spec
Polaris admin UI
OAuth 2.0 + scoped permissions
GraphQL Admin API
2–3 webhook handlers
Documentation handoff

Public App Store

App Store-ready public app.

$30,000/ from

8–12 weeks

Build a public app

UX / UI on Polaris
Embedded admin (App Bridge)
Shopify Billing API
GDPR webhooks
App Store listing & submission
First-submission approval target
30 days post-launch support

Embedded enterprise

Plus custom app + integrations.

Custom

12–20 weeks · from $50,000

Talk enterprise

Shopify Plus custom app
Checkout extensions / Functions
ERP / CRM / PIM connectors
Queue-backed webhook pipeline
Multi-store organization support
Retained dev team

Need a fixed-price proposal? Share your brief — we'll respond with a scoped quote within 1 business day. Prefer to hire Shopify app developer time on a retainer? We do that too.

Industries

Shopify apps we build, by industry

We've shipped Shopify apps for every major eCommerce vertical. Each industry has its own data model, workflows, and integration surface — and our app blueprints reflect that.

SaaS Shopify apps

Subscription-billed SaaS apps with usage tiers, custom dashboards, multi-store support, and Stripe + Shopify Billing API integration.

Retail enterprise apps

Internal apps for Plus retailers — POS connectors, store ops dashboards, inventory transfers, and warehouse-driven workflows.

Logistics & fulfilment apps

3PL connector apps, shipping rate calculators, label printers, and order-routing logic for multi-warehouse Shopify Plus brands.

Marketplace apps

Multi-vendor marketplace apps with seller onboarding, commission splits, payout automation, and dispute workflows on Shopify Plus.

Subscription apps

Subscription billing, build-a-box flows, swap/skip UX, churn-prevention, and customer portal — Shopify Subscriptions API native.

B2B & wholesale apps

Customer-specific pricing, MOQ logic, NET-term checkout, quotes, and PO upload — purpose-built for Shopify Plus B2B.

Shopify App Development

Let's talk eCommerce, Shopify & Shopify Plus solutions

We are an accredited expert Shopify agency, partnering with brands to design, build, ship, and grow Shopify and Shopify Plus apps. Whether it's your first app or your tenth — our team is here to help.

Build My Shopify App

Connected services

Shopify Store Development

Custom Shopify stores from scratch — discovery, design, development, integrations, launch.

Shopify Theme Development

Custom themes on Online Store 2.0 with sections, app blocks, and conversion-tested UX.

Custom Shopify Sections

App blocks and theme sections built to slot into your app's onboarding and merchandising flows.

Shopify Hydrogen

React-based headless storefronts that pair with custom Shopify apps for advanced data and UX.

Tech Audit & Consulting

App stack review, performance and security audit before scaling app distribution.

On-Demand Shopify Support

Retained app maintenance, monitoring, and feature releases post-launch.

FAQ

FAQs About Shopify App Development

How much does a Shopify developer cost?

Cost depends on app complexity, features, and goals. Mgroup offers flexible pricing models — fixed-price for well-scoped apps, time and material for evolving projects, and retained support after launch.

Why should I pay someone to build my Shopify apps?

A professional Shopify app developer ensures scalability, security, optimization, and proper integration with Shopify's APIs, webhooks, and admin surface — the things that get an app approved on the App Store and keep it stable as Shopify ships changes.

What types of Shopify apps can you build?

We build public apps for the Shopify App Store, private apps tied to a single store, and custom apps for Plus merchants — across categories like checkout, merchandising, subscriptions, ERP/CRM connectors, and analytics.

What is the difference between public, private, and custom Shopify apps?

Public apps are distributed via the Shopify App Store and installable by any merchant. Private apps are installed on a single store via API credentials. Custom apps are built in the Shopify admin for a specific Plus organization.

How long does it take to develop a Shopify app?

Simple apps ship in 3–5 weeks, mid-complexity apps in 6–10 weeks, and enterprise apps with deep integrations or App Store review can take 10–16 weeks.

Can you help publish my app to the Shopify App Store?

Yes — we handle submission, compliance, listing copy, billing setup, and the review process. We've shipped apps that passed Shopify's review on first submission.

What technologies do you use for Shopify app development?

Node.js, React, Shopify Polaris, Remix, GraphQL Admin API, REST Admin API, webhooks, App Bridge, and OAuth 2.0. We follow Shopify's app architecture best practices.

Do you provide post-launch support and maintenance?

Yes — we offer ongoing support plans and monitoring through On-Demand Shopify Support. Shopify ships breaking changes regularly; retained support keeps your app compliant and running.

How do you ensure Shopify app security and data protection?

We implement OAuth 2.0, encrypted token storage, scoped permissions, GDPR-compliant data handling, regular security audits, and webhook signature verification.

How does a Shopify developer help me market my Shopify app?

Building a great app is only the first step. A seasoned Shopify developer—especially one familiar with app marketing strategy—can also help position your app for discoverability and growth.

At Mgroup, we can help configure analytics so you can monitor usage and engagement in real time. Our apps are built with performance and search engine visibility in mind, giving you an edge from launch. If you’re serious about growing your reach, schedule a Shopify app optimization consultation with our team today.