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Build the custom app or private integration the App Store doesn't have — on Shopify's modern app stack.

Custom Shopify apps and private integrations for workflows the App Store doesn't cover.

extension

$15k

Custom app / integration

You're stuck paying three SaaS apps to half-solve one workflow, or you need a private integration to your ERP, WMS, or internal tools that no public app will ever build.

One integration, wired to everything

Custom apps and private integrations, connected directly to the systems you already run.

ERP
WMS
PIM
Finance
Shopify
  • api

    Custom & private apps

    Embedded admin apps on Remix + App Bridge, or private integrations.

  • sync

    System integrations

    ERP, WMS, PIM, and finance systems wired to Shopify's APIs.

  • webhook

    Webhooks & jobs

    Reliable event handling and background jobs that don't drop data.

  • lock

    Auth & compliance

    OAuth, GDPR webhooks, and App Store review readiness if you publish.

What lands in your repo

check_circleCustom or private Shopify app
check_circleAPI integrations and webhook handlers
check_circleAdmin UI on Polaris + App Bridge
check_circleDeployment and monitoring setup
check_circleDocumentation and support handoff

From Sprint 0 to launch

Week 0

Sprint 0

Spec, data flow, API audit

Weeks 1–5

Build

App, integrations, jobs

Weeks 6–7

Harden

Auth, error handling, QA

Week 8

Ship

Deploy, monitor, handoff

From app sprawl to one integration

A subscription brand replaced six overlapping apps with one private integration, cutting monthly SaaS spend by $2,400.

Reporting app
Custom script
Spreadsheet sync
Automation flow
Manual export
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One private integration
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We went from three overlapping subscription apps and a spreadsheet to one private integration that just talks to our WMS directly.

Rachel Kim

Operations Lead, Vantage Freight Supply

What we build this on

RemixApp BridgePolarisGraphQL Admin APINode.jsTypeScript

Starts at $15k

What changes the price:

  • trending_upIntegration count
  • trending_upData sync complexity
  • trending_upPublic App Store review

Get a fixed scope for Shopify App Development

Tell us the basics — we reply within one business day.

bolt48-hour onboarding once scoped — average match time 3.5 days.

Common questions

For internal workflows, a custom/private app is faster and cheaper. We'll advise which fits your goal.

Ready to start your Shopify App Development project?

Book a free 15-minute technical fit call. We'll scope the work and give you a fixed price.

Vetted in 48 hours. Average match time: 3.5 days.