POS UI extensions
Smart grid tiles, modals and actions that open custom screens inside Shopify POS on iPad, iPhone and Android.
Shopify POS App Development for In-Store Retail
Give your store staff the tools they need right on Shopify POS. We build POS UI extensions and apps that add custom screens, actions and workflows to Shopify Point of Sale.
Built by the team behind 9 Shopify App Store apps, including PDF Invoice Generator (rated 4.8 from 137 reviews), FSEO and FlowSend.
What we build
Shopify POS Apps we build
Checkout & cart actions
Add custom discounts, line-item properties, notes or approvals to the POS cart before staff take payment.
Customer lookups & loyalty
Show customer history, loyalty balances or VIP status at the till so staff can personalise service.
Inventory & product tools
Look up stock across locations, scan barcodes and print labels without leaving POS.
Receipts & documents
Generate and print or email invoices, gift receipts and custom documents for in-store orders.
Omnichannel workflows
Connect in-store sales with online orders: ship-to-customer, local pickup and endless-aisle flows.
Process
How we work
From first call to launch, you work directly with the developers building your app.
Discovery & scoping
We map your workflow, the Shopify surfaces involved and what success looks like, then agree on a clear scope.
UX & architecture
We design screens with Shopify Polaris so the app feels native, and plan data, APIs, webhooks and permissions.
Build & test
We build on Shopify development stores, test against real order, product and customer data, and review with you each step.
Launch & support
We install it as a custom app on your store or prepare it for Shopify App Store review, then support and extend it.
Technology
Shopify platform expertise
POS UI extensionsShopify POSAdmin GraphQL APIWebhooksPolarisBarcode scanningShopify FunctionsShopify CLI
See it in our own apps: Retail Barcode Generator and PDF Invoice Generator. Other services: Custom Shopify Apps, Shopify B2B Apps, AI Shopify Apps, Shopify Sidekick Apps, Shopify Flow Apps. All services.
FAQ
Shopify POS Apps FAQ
Common questions about Shopify POS App Development with Final Apps.
What is a Shopify POS UI extension?
A POS UI extension lets an app add its own tile, screens and actions inside Shopify POS. Staff tap the tile on the POS home screen to open your custom workflow, such as a loyalty lookup or a custom discount.
Can a POS app work offline?
Shopify POS has limited offline support, and how much an extension can do offline depends on what data it needs. We design POS workflows to degrade gracefully when the connection drops.
Which devices do Shopify POS apps run on?
POS UI extensions run wherever Shopify POS runs, including iPad, iPhone and supported Android devices.
Can you connect Shopify POS to our other systems?
Yes. A POS app can read and write data from your ERP, CRM, loyalty or inventory systems through their APIs, so staff see one view at the till.
Do your existing apps support Shopify POS?
Yes. PDF Invoice Generator and Retail Barcode Generator both work with Shopify POS.