Commerce Engineering

Shopify apps built for the App Store and private use.

Public apps for the App Store, custom apps for enterprise merchants, and Shopify Functions — built with Remix + Polaris on the officially recommended stack.

Delivery model
  • Fixed-price proposals
  • Senior engineers only
  • Weekly progress updates
  • Two weeks post-launch support
Why RPMStack for Shopify App Development

Three principles we don't compromise on.

01

Official stack

Remix + Polaris + Prisma — the exact template Shopify's own team uses. Familiar to reviewers, fast to ship.

02

Compliance-ready

GDPR webhooks, mandatory app UX, billing API — every App Store requirement handled before submission.

03

Extension experts

Theme app extensions, checkout UI extensions, admin blocks, functions — the full extension surface.

What we build

Concrete deliverables. No hand-waving.

  • Public apps for the Shopify App Store
  • Custom apps for single-merchant use
  • Shopify Functions (delivery, discount, payment customisations)
  • Theme app extensions
  • Checkout UI extensions (Plus)
  • App Store listing optimisation
RemixPolarisTypeScriptShopify Admin API (GraphQL)Shopify FunctionsPrismaPostgreSQLWebhooksBilling APIRemixPolarisTypeScriptShopify Admin API (GraphQL)Shopify FunctionsPrismaPostgreSQLWebhooksBilling API
Stack

What we reach for.

App concept validation → Merchant flow design → Development sprints → App Store review prep → Submission → Post-launch iteration.

RemixPolarisTypeScriptShopify Admin API (GraphQL)Shopify FunctionsPrismaPostgreSQLWebhooksBilling API
FAQ

Common questions.

How long until my app is live in the App Store?

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Build usually 6–10 weeks. Shopify review adds 1–3 weeks depending on the queue. We handle the review round-trip.

Do you handle billing?

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Yes — recurring billing, usage-based billing, and one-time charges via Shopify's Billing API, all in the standard scope.

Public app or custom app?

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Public if the same solution helps 100+ merchants and you want a product business. Custom when it's proprietary logic for one merchant. We advise on both.

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Ready when you are

Ready to ship your shopify app development project?

Free discovery call. Fixed proposal. Senior engineers only. Start with a brief, leave with a plan.