Shopify Apps

Custom Shopify apps and integrations that automate workflows, reduce errors, and connect your store with the systems you rely on.

Featured App

UPNify — QR code payments for Shopify

Make bank transfers faster and reduce payment errors for customers across the EU.

Add a scannable QR code to your Shopify order emails

UPNify automatically generates a QR payment code from the order total and customer details and places it directly into your Shopify notification templates. Customers across the EU can scan and pay with their banking app in seconds.

Faster payments: perfect for "Payment pending" / bank transfer workflows
Fewer mistakes: reduces wrong references and manual copy/paste errors
Simple setup: install the app and insert the QR block in email templates

Best for

EU merchants who accept bank transfer payments and want a reliable, customer-friendly payment flow.

Typical placement

Order confirmation / payment pending emails, payment reminders, and B2B invoice-style notifications.

View on App Store Ask about setup

Why Apps

Why build a Shopify app?

Apps turn manual work into reliable, repeatable systems.

Automate operations

Reduce human error and save hours each week with automated order processing, fulfillment, and admin workflows.

Integrate systems

Connect Shopify with ERP/accounting, shipping providers, payment flows, email tools, or custom internal services.

Improve conversion

Add features that directly impact sales: faster payments, better UX, upsells, smart shipping logic, and personalized flows.

Discuss your app idea

Process

How I build Shopify apps

Simple, transparent, and focused on measurable outcomes.

Step 01

Discovery

We define the workflow, edge cases, data requirements, and success metrics (time saved, error reduction, revenue impact).

Step 02

Build & iterate

Fast implementation with checkpoints. You see progress early and we refine based on real store needs.

Step 03

Launch & support

Deploy, test, monitor, and document. Optional ongoing improvements and support for new Shopify features.

Need something beyond apps? Explore Shopify development, custom web apps, or DevOps & AWS. For examples, see case studies.

FAQ

Common questions about Shopify apps and UPNify

What is UPNify?

UPNify is a Shopify app that generates a QR payment code and adds it to Shopify order emails, making bank transfers fast and error-free for customers across the EU.

Where does the QR code appear?

The QR code is placed in your Shopify notification templates. Customers scan it with their banking app to pay instantly.

Does UPNify work with partial payments or payment reminders?

Yes. You can use UPNify in payment-pending flows and reminder emails as long as the template has access to order totals and customer data.

Can you build a custom Shopify app for my store?

Yes. I build private and public Shopify apps, integrations, and automations to match your workflow (orders, fulfillment, billing, marketing, and reporting).

Do you help with installation and setup?

Yes. I can help you install the app, place the QR block into your templates, test the flow, and ensure payments are reliable for customers.

About

About the developer

Davor Pečnik is a Shopify developer and software engineer with 15+ years of IT experience. He builds high-performance Shopify stores, custom applications, and reliable DevOps/AWS infrastructure for businesses in Slovenia and across the EU.

For Shopify apps, he focuses on practical outcomes: fewer manual steps, fewer errors, faster payments, and better operational visibility.

Want to discuss an app idea? Get in Touch.

Want a Shopify app that fits your workflow?

Share your process and the bottleneck you want to eliminate—I'll reply with a suggested approach.

Get in Touch

[email protected] +386 41 998 467

Slovenj Gradec, Slovenia · Serving businesses across the EU