Shopify apps built in days — and 7 for 7 through app review.
I'm the developer behind seven approved Shopify App Store apps — all designed, built, submitted, and passed through app review solo, in 2026. Agencies quote six to twelve weeks for a custom app; I scope it today and build it this week. Every one of the seven has cleared review, most within days. That track record is the whole pitch.
7 for 7 on Shopify app review — including Checkout UI extensions, Checkout Validation Functions, embedded admin apps, and billing-API integrations.
Scripts are gone. Legacy order-status scripts are gone too.
Shopify Scripts stopped running June 30, 2026 for Plus stores, so any custom discount, shipping, or payment logic that was not rebuilt as a Function has already stopped. Separately, on August 26, 2026 non-Plus stores lost ScriptTags and Additional Scripts on their Thank you and Order status pages. I rebuild that logic the platform-approved way — Checkout UI Extensions, Functions (discount, delivery, payment, validation), and Web Pixels — and AgeProof, one of the seven, is built on an approved cart-and-checkout validation Function. Migration audit within 48 hours; most rebuilds ship 48 to 72 hours after sign-off.
Migration audit within 48 hours — $500, credited to your rebuild →Proof, not promises — live on the App Store
AccessGuard
Real ADA/WCAG auditing with axe-core + Playwright — an honest audit engine, not an overlay widget.
View on App Store →AgeProof
Age-verification with native Checkout Validation Functions — checkout-blocking logic done the platform-approved way.
View on App Store →Merchant Guard
GMC suspension & Misrepresentation risk scanning — policy engine mapped to Google's actual enforcement patterns.
View on App Store →Cited
AI-visibility measurement — how often ChatGPT, Gemini & Perplexity actually cite a store, with optimization guidance.
View on App Store →Payout Guard
Shopify Payments payout-hold and chargeback monitoring with early-warning alerts.
View on App Store →Old Glory
Made-in-USA claim-risk scanning against the FTC's actual standard — catalog-wide, cited to the rule.
View on App Store →CheckoutProof
Checkout-extensibility readiness scanner — scores a store's migration status against the Aug 26 legacy-checkout shutoff.
View on App Store →Engagements
Custom app for your store
- Concept → working private/custom app, live on your store
- Delivered in 3–5 business days, fixed price agreed up front
- Priority delivery within 2 business days: +$2,500 — limited slots, scope-qualified
- Embedded admin, billing API, webhooks, GDPR endpoints — handled
- 30-day defect window after delivery
- You own the source — your repo, IP assigned in writing
Public App Store product
- Concept → approved App Store listing, fixed price up front
- Submission-ready build delivered in 3–5 business days; priority within 2 business days: +$3,000
- Listing copy, screenshots, and demo video included
- Two revision rounds on the admin UI
- Submitted on the agreed date; reviewer correspondence handled until approval — all seven of mine cleared review
- 30-day post-launch stabilization window
Scripts→Functions rescue
- Audit of your Scripts, ScriptTags & checkout customizations within 48 hours — $500, credited in full toward the rebuild
- Fixed-price rebuild, typically $2,500–$8,000 by scope
- Functions, checkout UI extensions & Web Pixels — the platform-approved way
- Most rebuilds ship 48–72 hours after sign-off
- Buy the audit →
Extensions & integrations
- Checkout UI extensions & Functions (validation, delivery, payment, discount)
- Fixed sprints from $1,500 — one Function or extension, scoped and shipped
- Theme-app blocks, App Bridge, GraphQL Admin API
- Weekly invoicing, async-first communication
App care plan
- API version bumps & Shopify breaking-change updates, before the deadlines
- Monitoring and priority response
- Up to 5 hours of fixes and small features a month
- Cancel anytime — for apps I built, or yours after a code review
Agency white-label
- Overflow app builds under your brand
- Your PM, my build — clean handoff, documented code
- App review experience: 7 apps submitted, 7 approved and live
- US-based, contracts & NDAs no problem
Why this works
- The apps are the résumé. Every claim above is verifiable in two clicks — the listings are public and the apps are live and installable.
- Solo means fast and accountable. No agency overhead, no handoffs between a salesperson, a PM, and a junior dev. You talk to the person writing the code.
- Compliance is the specialty. ADA, FTC, Google Merchant Center, age verification — the unglamorous, deadline-driven work merchants actually get sued or suspended over.
- Full-stack beyond Shopify. Python/FastAPI backends, React, Postgres, Stripe, AI integrations (OpenAI/Anthropic/Gemini) — 20+ shipped products across domains.
- How the delivery clock works. It starts once scope is approved, the deposit has settled, and I have the access and assets the build needs — and it pauses for anything I am waiting on from your side or a third party. Delivery means an installable build ready for your acceptance, or ready for App Store submission on a public app; Shopify owns its own review clock and I never promise their date. Priority slots are limited and scope-qualified, and if I miss a priority date for a reason inside my control, the priority fee is refunded. Standard work is never held back — if it is ready on day two, you get it on day two.
- You own what you pay for. Full source in your repo with IP assigned in writing, tests and documentation included, and hosting or third-party costs disclosed in the quote and billed at cost.
Have a build in mind?
Tell me what you need and I'll reply within 2 business days with a scope, a price, and a ship date.