Growing merchants
Automate ops that spreadsheets and off-the-shelf apps cannot cover.
Trusted by
200+ Brands
4.8/5 rating
What is Shopify App Development?
Context
Shopify app development means building custom functionality that the theme alone cannot deliver — private ops tools, public App Store apps, checkout extensions, subscription logic, inventory sync, and deep integrations with ERP/CRM. Krezine designs and ships Shopify apps with secure OAuth, webhook reliability, and admin UX that merchants actually use.
Agencies & SaaS
Ship private or public Shopify apps for your clients or product line.
Enterprise retail
Secure integrations between Shopify and ERP, WMS, or PIM systems.
Project Deliverables
Everything included in your engagement — structured milestones, clear outputs, and no surprises at handoff.
Product & technical discovery
Requirements, data model, API surfaces, and success metrics for your Shopify app or integration.
App architecture
Remix/Node or preferred stack with Shopify CLI, session handling, and scalable hosting.
Admin & embedded UI
Polaris-aligned embedded apps so merchants configure workflows inside Shopify Admin.
APIs, webhooks & sync
Admin GraphQL/REST, webhooks with idempotency, and reliable sync to external systems.
Checkout & storefront extensions
Checkout UI extensions, Functions, and theme app extensions when conversion or ops require them.
QA, launch & support
Test plans, App Store or private distribution, monitoring, and iteration after go-live.
How We Deliver
From discovery through delivery, we follow a proven process tailored to your project goals and timeline.
Scope
Define use cases, permissions, and integration boundaries.
Build
Implement app backend, embedded UI, and webhook pipelines in sprints.
Validate
Merchant QA, edge-case testing, and performance checks.
Ship
Deploy, document, and train — then monitor errors and usage.
Quality signals we hold ourselves to
Standards
Less manual work
Automations cut order handling and catalogue busywork.
Cleaner data
Bi-directional sync reduces inventory and customer mismatches.
Unique differentiation
Features competitors cannot buy from the App Store alone.
Maintainable code
Documented apps your team can extend safely.
Shopify App Development
Partnership checkpoints
Shopify app projects at Krezine emphasise reliability: clear scopes, webhook durability, and admin UX. Whether you need a private ops app or a public listing path, we document everything for long-term ownership.
- App brief and API permission review
- Architecture approval and security checklist
- Alpha build in a development store
- Beta with real merchant workflows
- Production launch and monitoring setup
Related guides & services
Explore
services / web-developmentservices / web-development / shopify-store-developmentservices / web-development / full-stackcontactBlog: shopify app developmentBlog: shopify store developmentBlog: full stack development
Looking for local Shopify partners? Explore city pages such as Shopify store development in Ahmedabad, Shopify apps in Dubai, or Shopify websites in Mumbai.
Web Development capabilities
Specializations
Frequently Asked Questions
Faqs
1
What kinds of Shopify apps do you build?
Private merchant apps, custom Admin tools, checkout extensions, subscription/logic apps, and integrations with ERP, CRM, PIM, and fulfilment systems.
2
Can you publish to the Shopify App Store?
Yes. We can build toward public listing requirements (OAuth, billing, privacy, reviews) or keep apps private for a single merchant.
3
How long does Shopify app development take?
MVPs often take 4–10 weeks depending on integrations and UI complexity. We phase delivery so core workflows ship first.
4
Do you work with Shopify Functions and Checkout Extensibility?
Yes. We implement modern checkout extensibility and Functions where Shopify supports them for your plan and markets.
5
How do I get started?
Share your workflow pain points via our contact form. We propose an architecture, timeline, and fixed or phased budget.
