Shopify app services
Shopify app work, at a fixed price
Most people who build Shopify apps can write the app. Getting it approved, billing correctly, and passing the compliance checks is where the weeks disappear. That's the part I do.
Where this comes from
- Four Shopify apps built and deployed — OnBrand AI and Choosebox are live on the App Store, Consently is in review, Readyby is next.
- Shopify Billing API implemented end to end, including the test-vs-real charge trap that produces the “approved the charge but the app still shows Free” upgrade loop.
- Theme app extensions that inherit the merchant's theme and expose real theme-editor controls.
- App Store review compliance: listing claims, character limits, feature images to spec, reviewer testing instructions, protected customer data requests.
What you can buy
Pre-submission compliance audit Start here
$300 flat · 48-hour turnaround
A written report on the things that actually get apps rejected or quietly broken, run against your app before a reviewer sees it:
- All four mandatory webhooks — do they return 200, and does
shop/redact erase every table keyed by shop?
- Billing: does the flow survive a development-store test charge, and does cancel prorate?
- Does the app re-embed correctly after billing approval instead of throwing an auth error?
- Listing copy: performance claims, pricing words in the wrong field, character limits.
- Does a typecheck pass, and does anything reference a database model that no longer exists?
App Store rejection rescue
$900–1,500 flat · includes up to two resubmission rounds
You submitted, you got rejected, and the feedback reads like a riddle. I fix the cited reasons, rewrite the listing to spec, rebuild the feature image if it's the problem, write the reviewer testing instructions, and resubmit with you.
Theme app extension / storefront feature
$1,500–3,500 flat · about two weeks
A storefront feature your theme can't do on its own — a date picker, a bundle builder, a configurator, a delivery-zone gate. Built as a proper app block that inherits the merchant's theme, with colour, layout and custom-CSS controls in the theme editor.
Private app for one merchant
$4,000–8,000 flat · 3–4 weeks, 50% up front
A workflow no public app fits: unusual scheduling, production capacity rules, internal fulfilment logic. Fixed scope agreed before we start, so the price doesn't move.
Maintenance & compliance retainer
$350–600 / month
API-version bumps, webhook health, Shopify's breaking changes, listing updates, and the “why did our app stop embedding this morning” calls. Cancel any month.
How I quote. Fixed price, agreed before any work starts, from a written scope. No hourly billing, no discovery retainer, no surprise change orders — if the scope grows we agree a new number first.
Tell me what's stuck
A paragraph is enough: what the app does, and what Shopify said. You'll get a straight answer on whether I can help and what it costs — not a discovery call.
Email support@dropfeed.io →
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