Your Shopify agency with its own apps in the store.
The Shopify App Studio from Germany for apps, store setup, accounting & e-invoicing, with configurable tax handling for the DACH market, hosting in Frankfurt and a data processing agreement.
From store setup to your own app: all from one team.
Apps we built, launched and scaled ourselves.
A partner who truly understands Shopify.
We use what we build
belegio and zrapp are live in the Shopify App Store. We know merchants’ daily reality first-hand.
Built for German tax scenarios
ZUGFeRD, XRechnung, OSS, §19 and reverse-charge: we build for the real requirements across the DACH region.
Hosting in Germany
Hosted in Frankfurt, with a data processing agreement included.
You own the code
Clean, scalable code on Remix, Polaris & App Bridge, full source included on custom projects.
Real German support
Personal, in German, Mon–Fri. No ticket ping-pong, direct contacts instead.
The complete lifecycle
From idea through development and App Store launch to maintenance and iteration: all from one team.
We build complete products, and run them ourselves.
zrapp.group is a full-stack agency from Germany. We build complete products: from robust backends (Java, Node, PHP) through modern frontends (React, TypeScript) to hosting, infrastructure and DevOps. Shopify is one of our strengths; with our own apps like belegio and zrapp live in the store, we know what it takes to not just build software but run it reliably.
From idea to launch, in four clear steps.
Discovery
We deeply understand your business, your users and your app idea.
Concept & architecture
Technical concept, scope and a realistic roadmap with a fixed-price option.
Development
Clean, scalable build with regular demos and short feedback loops.
Launch & support
Go-live in the App Store, monitoring and continuous improvement.
Full-stack: from Java to React.
From backend through frontend to infrastructure: modern, durable technologies chosen for maintainability and performance.
Common questions, clearly answered.
From the blog.
Customize a Shopify theme: editor, templates, Liquid and apps
Customize a Shopify theme with the right approach: editor settings, templates, Liquid or apps, plus previews, testing and update planning.
Customize Shopify checkout: what requires Plus?
Understand Shopify checkout branding, UI extensions and Functions by plan, with a decision table and practical acceptance tests.
Migrate Shopware to Shopify: data, rules and launch planning
Plan a Shopware-to-Shopify migration: product data, customers, history, business rules and URL mapping, with test imports and cutover checks.
Got a Shopify project?
Whether it’s an app, a new store or a migration: tell us about it. We reply by the next business day (Mon–Fri) with a first assessment, free and with no strings attached.