What is the difference between a Custom App and a Public App?

Custom Shopify Apps are built specifically for a single store and require no listing approval, ideal for private ERP or backend logic sync. Public Apps are listed on the Shopify App Store, supporting multi-tenant installations, billing API integration, and merchant-facing dashboards.

How do you handle Shopify's strict API rate limits?

We utilize Shopify's GraphQL Admin API which uses a leaky-bucket rate limiting system. We implement automated query back-off logic, rate limit queueing, and asynchronous bulk mutation APIs to process millions of products without hitting limit thresholds.

Where are custom Shopify apps hosted?

We host custom apps on premium serverless architectures (Vercel, AWS Lambda, or Fly.io) coupled with highly-available PostgreSQL/Redis databases to guarantee 99.99% uptime and sub-100ms response times.

Can custom apps modify the checkout page?

Yes. Using Shopify's Checkout Extensibility framework, we write secure WebAssembly-based checkout validation rules, custom payment fields, and dynamic discount upsell widgets directly in the native Shopify checkout layout.

Shopify App Storefront & API Integrations

Shopify App
Development & Extensions.

We build scalable, high-performance Shopify apps and custom integrations using React/Remix and Node.js. Fully optimized for the Shopify App Store or private enterprise systems.

Shopify App Capabilities

Leverage our elite engineering to build merchant-facing Polaris tools, high-scale webhook routers, and secure checkout modifications.

Custom Shopify Apps

Developing custom, serverless Shopify apps built on Node.js/Remix and hosted securely, tailored to your exact back-office logic.

GraphQL & REST Admin APIs

Deep data integrations utilizing Shopify's GraphQL Admin API for lightning-fast catalog updates, customer lookups, and bulk operations.

Checkout Extensions

Create fully integrated checkout upsell, branding, and validation widgets utilizing Shopify's Checkout Extensibility framework.

App Bridge & Embedded UI

Seamless Polaris-styled embedded app interfaces inside the Shopify admin dashboard, ensuring a native merchant experience.

Webhook Reliability Engines

Event-driven architecture using AWS EventBridge or Google Cloud Pub/Sub to process high-volume order and inventory events.

Billing & Subscriptions API

Custom SaaS billing gateways, multi-tiered credit structures, usage charges, and recurring merchant subscription setups.

Shopify App Categories We Support

We engineer bespoke applications targeting specific back-office logic, third-party warehouse syncs, and wholesale operations.

B2B Pricing & Quantity Matrices

Custom tier pricing calculations, complex product quantity grids, Net-30 payment gateways, and merchant validation rules.

Omnichannel Inventory Synced Middleware

Real-time sync bridges connecting ERPs (SAP, NetSuite), warehouse management software, and multiple Shopify storefront locations.

Bespoke Subscription & Recurring Billing

Custom payment contracts mapped to Shopify's native Subscription API, giving you full control over renewal intervals and discounts.

Flash Sale & High-Volume Queuing

Throttling order ingest, custom queue pages, and API-gated launch systems to prevent inventory overselling during major drops.

Custom POS Extensions & Cart Rules

Polaris UI extensions built for Shopify POS terminals, introducing custom customer reward logic and local delivery overrides.

Digital Downloads & Licensure Vaults

Secure instant PDF delivery keys, automated digital file access, validation systems, and course license generation logic.

Webhook attribution & pipeline reliability

Custom apps must act as bulletproof background runners. With strict browser privacy tracking, webhook validation ensures conversion signals match database queries without drops.

Real-time Attribution SyncKeep sales metrics matching exactly between Shopify Admin and GA4/Meta server API.

AWS Event-Driven ScalabilityQueue millions of event webhooks without losing execution cycles.

Pixel-Perfect Webhook Attribution

Eliminate conversion gaps by logging and matching purchase webhook receipts directly to Google and Meta servers via server-side pipelines.

CRM & ERP Synchronicity

Instant data pipelines sending customer lifetime value (LTV) and app behavior parameters directly to HubSpot, Salesforce, or Klaviyo.

First-Party Cookie Hardening

Run tracking scripts inside first-party domains to bypass Safari's ITP and ensure consistent conversion attribution.

Attribution Dashboard Pipelines

Custom analytical tables highlighting store performance metrics, app usage fees, and marketing cost per acquisition (CPA).

Operations Automation Calculator

Estimate the manual hours saved monthly through custom Shopify app synchronization and automation hooks.

Store Operations

Monthly Orders Processed

2,500 orders

Weekly Operations Tickets/Queries

250 tickets

Projected Admin Hours Saved

~313 Hours / mo

Automation Lift:

Allows operations teams to redirect attention from routine order data entries to customer satisfaction and scaling.

Shopify App Developer Stack

We leverage Shopify's official App Bridge specifications and robust backend servers for seamless interface load times.

Remix React App framework for native loading.
Shopify Polaris design library components.
Node.js server cores for webhook processing.
Redis server caches for API credential maps.

App Tech Stack

GraphQL Admin APIREST Admin APIRemix FrameworkPrisma ORMPolaris UI ComponentsApp Bridge SDKAWS LambdaRedis CachingFly.io HostingPostgreSQLNode.jsDocker Containers

Shopify App Development FAQs

Common questions regarding custom store integrations and app listing setup.

Request a Shopify App Consult

Ready to construct custom workflows or launch an app to the public? Fill in your details below and our lead technical architect will schedule a scoping call.