Service
Custom Shopify apps that survive review and survive year two.
Public apps, custom apps, Functions, admin extensions. Built to current Shopify standards, sized to your traffic, and documented well enough that you don't need me forever.
The problem
Apps are easy to start and brutal to finish.
Off-the-shelf apps cover most needs. The other 20% — your specific shipping rules, custom discount logic, internal tools, B2B flows, headless integrations — needs custom code.
Done wrong, that custom app burns months on auth flows, App Bridge confusion, and review rejections. Done right, it's a small focused codebase you can extend for years.
Deliverables
What you get
- Public, custom, or private app — scoped to fit
- Shopify Functions for discounts, shipping, payment, cart and checkout validation
- Admin extensions: blocks, action menus, settings UI built on Polaris + App Bridge
- Storefront integrations using Storefront API or Hydrogen, where it fits
- Webhooks plus the GDPR mandatory webhooks (customer data request, redact, shop redact)
- Authentication, session tokens, and embedded-app pattern done correctly
- CI pipeline, environment config, and a one-command deploy
- App Store listing assets and a review-ready submission for public apps
- Hosting recommendation tuned to traffic, region, and the merchant's billing tolerance
- README and architecture doc your next developer can pick up
Process
How it works
- 01
Scope
Walk through the business logic, edge cases, and integrations. Output: a written scope you sign off on.
- 02
Architecture
Decide what belongs in a Function, what belongs in an app, what belongs in the theme. Cheapest tool wins.
- 03
MVP
Shippable in 2–4 weeks for most scopes. You see real merchant flow before we go deep.
- 04
Iterate & ship
Polish, App Store submission (if public), monitoring, hand-off. Optional retainer afterwards.
Frequently asked questions
Do you build apps for the Shopify App Store? +
Yes. Including the listing assets, the review prep, and the back-and-forth with the review team. I have shipped public apps and know the common reasons reviews get blocked.
Should this be an app, a Function, a Flow connector, or just theme code? +
That's scope-one's job. The wrong tool here costs months. I'll tell you up front if your idea is better solved with a few lines of Liquid or a single Function instead of a full app.
What hosting do you recommend? +
Depends on the app. Cloudflare Workers for low-latency Functions and webhook handlers. Fly / Railway / Vercel for embedded admin apps. I size the recommendation to the merchant's actual traffic.
Can you take over an app another developer started? +
Yes — usually after a paid code review so we both know what we're getting into. Some apps are 2 weeks of cleanup; some are easier to rebuild.
Do you support apps after launch? +
Optional retainer for bug fixes, Shopify API version bumps, and small enhancements. Or fully hand off — your call.
Polaris UI or custom design? +
Polaris for admin embeds — it's what merchants expect and it gets reviewed faster. Storefront extensions can be custom-styled to match the theme.
Related
Other things I do.
Shopify Theme Development
Custom Online Store 2.0 themes built for speed, conversion, and merchant control.
Learn more
Shopify Technical SEO
Crawlability, schema, and on-page fundamentals so your store actually ranks.
Learn more
Shopify Speed Optimization
Lighthouse-driven audits and fixes that move Core Web Vitals into the green.
Learn more
App development
Have a Shopify app idea?
Bring me the rough idea, the broken prototype, or the working app you've outgrown. Free 30-minute call to figure out scope and the right tool.