Custom Shopify App or an App Store App? How to Decide

Shopify · November 12, 2026 · 2 min read

Every growing Shopify store hits the same question: do we install an app from the Shopify App Store, or build something custom? Both are valid. The right answer depends on how unique your requirement is and how much the feature matters to revenue.

When an App Store app is the right call

If the problem is common, such as reviews, email capture, basic subscriptions or product feeds, a mature app is usually cheaper and faster than building. You get ongoing maintenance, support and updates for a monthly fee. Look for an app with recent updates, clear pricing and a reasonable permissions request.

When a custom app makes sense

A custom app earns its cost when one or more of these are true:

Your workflow is specific. Your approval rules, pricing logic or fulfilment steps do not match what any packaged app supports.
You are stacking apps. Three or four apps patched together to imitate one feature often cost more, slow the storefront and break in surprising ways.
Data must flow to your own systems. Syncing with an ERP, warehouse or internal dashboard usually needs custom integration work.
The feature is a competitive edge. A product configurator or B2B ordering flow that sets you apart should not depend on a third party's roadmap.

Custom app, or public app?

A custom app is built for one store or organisation and installed directly, so there is no App Store review. A public app is distributed to many merchants and must handle multi-store installation, billing and Shopify's review requirements. If you only need the feature for your own business, custom is simpler and cheaper.

Questions to ask before you build

What exactly does the app need to do on day one, and what can wait?
Which Shopify APIs and permissions are required?
Where will it be hosted, and who maintains it when Shopify changes an API version?
Could Shopify Flow, a metafield or a theme app block solve this without a full app?

That last question saves a lot of money. Many requests that sound like apps turn out to be a theme change or a Flow workflow.

Our suggestion

Start with the cheapest option that solves the problem, and measure. If you keep working around the limits of installed apps, that is the signal to build. Our Shopify app development service starts with a short scoping call, and you can describe your idea through the contact form for an honest view on whether it needs custom code at all.