Custom Shopify app development.
When an off-the-shelf app can't do what you need, we build one that can. ANF STUDIO develops custom, private Shopify apps tailored to your store — automating operations, adding bespoke features and connecting the systems your business runs on.
Apps built around your store
Private Custom Apps
Merchant-specific apps for your store alone — no App Store, no bloat, just what you need.
Workflow Automation
Automate tagging, fulfillment, pricing, inventory and back-office operations.
Custom Functionality
Bespoke features and store logic that standard apps and themes can't deliver.
System Integrations
Connect Shopify to your ERP, CRM, OMS, WMS, accounting or 3PL.
Shopify Functions & Extensions
Custom discounts, checkout and admin UI extensions on the upgrade-safe surface.
Maintenance & Support
Keep your app current with new API versions, monitored and supported.
The process
Discover
We map the exact problem, data and systems your custom app needs to handle.
Design & scope
A clear spec, data model and integration plan with a fixed quote.
Build
Develop on Shopify's Admin/Storefront APIs, webhooks and Functions, tested thoroughly.
Deploy & support
Install privately to your store, then monitor, maintain and extend.
Frequently asked
What is a custom Shopify app?
A private app built specifically for your store — it adds functionality or automation unique to your business, without publishing to the Shopify App Store.
When do I need a custom app instead of an App Store app?
When no existing app does exactly what you need, when you need deep integration with your own systems, or when you want to avoid recurring app fees and bloat.
Can you integrate my ERP or CRM with Shopify?
Yes — custom apps are the reliable way to sync Shopify with ERPs, CRMs, OMS, WMS and accounting tools.
Do you also build public App Store apps?
Yes — see our Shopify App Development service for public apps. This page is focused on custom/private apps for a single store.