Shopify apps & integrations.
Custom apps, public apps, checkout extensions, Shopify Functions, and ERP/3PL/CRM pipes — built where Shopify's defaults stop and your business logic begins. TypeScript-first, Polaris-compliant, and battle-tested at Plus scale.
- Remix
- App framework
- Functions
- Checkout / discount
- GraphQL
- Admin + Storefront
- SOC-2
- Ready infra
Custom apps,
public apps, everything.
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Custom apps
Internal tools, ops dashboards, merchandising utilities — scoped to one store, deployed on your infra or ours. Polaris UI, Remix backend, no shortcuts.
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Public Shopify App Store apps
Launch-ready App Store submissions with billing (recurring + usage), partner listing, review flow, and support tooling. We've shipped apps that passed review on the first submit.
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Checkout extensions
Upsells, custom fields, validation logic, delivery rules — built on Shopify's new Checkout Extensibility, not the deprecated Scripts.
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Shopify Functions
Custom discount logic, delivery customizations, payment customizations — compiled to WebAssembly, executed on Shopify's edge, zero middleware latency.
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ERP / OMS / 3PL integrations
NetSuite, SAP, Shiphero, ShipStation, Odoo, Microsoft Dynamics — bi-directional sync with replay, retries, dead-letter queues, and full observability.
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Webhooks & event infrastructure
Idempotent consumers, retries with backoff, dead-letter queues, audit trails. The boring stuff that keeps Plus brands online during peak traffic.
Specified first,
built in phases.
The process behind 20+ Discount Functions shipped in the last two years and 12 B2B builds on Shopify Plus in 18 months. Discovery ends with a written spec you sign off before any code is written.
- 01
Discovery & spec
We document what the app must do, every system it touches and the edge cases. On a B2B build this takes about two weeks.
- 02
Build in phases
Checkout extensions, Functions, admin screens and integrations, one phase at a time. Each Function ships with its own test suite.
- 03
Pilot & go-live
We wire it into your ERP or other systems, go live with a pilot group or in batches, and watch the first weeks of real orders for edge cases.
- 04
Handoff
Each Function ships with its test suite, so your team can maintain it after handoff. Or we keep developing the app on a monthly retainer.
What people
actually ask.
How long does a Shopify app take?
Custom app or public App Store app?
Our discounts were built on Shopify Scripts. What now?
Which ERPs and 3PLs do you connect?
JavaScript or Rust for Shopify Functions?
Who maintains the app after launch?
Go deeper.
Shipping Shopify Functions in Rust: a complete 2026 tutorial
Six Rust Functions in production. The cargo manifest, the wasm-size optimization that drops binaries 60%, the JSON schema mismatch trap nobody documents, and the cold-start latency data that justifies the extra build complexity.
Shopify Functions discount API: BOGO, tiered pricing, and bundle logic done right
Twenty Functions in production, and the bugs we hit on every one. The Discount Function input/output contract, the BOGO traps, the tiered-pricing decision points, and the test harness that catches the schema drift the Shopify CLI doesn't.
Building B2B checkout extensions on Shopify Plus: a 2026 field guide
Net-30 terms, PO numbers, per-account pricing, custom shipping logic — and the eight-week build it takes to ship them on top of Shopify's checkout extensibility stack. From an agency that has shipped twelve.
Ready to get started?
Tell us what you need and we'll come back with a scoped plan within one business day.