Extensions for the systems you already use
No need to replace your CRM or shop. We build the missing function right into it.
Shopify, GoHighLevel, HubSpot, and similar platforms are excellent foundations. They cover 80 percent of what a business needs. The remaining 20 percent is often exactly what sets you apart: a special booking flow, an industry-specific data model, a mandatory legal notice, or a sync with a specialist system.
Until now, you had two poor choices: make do with a half-fitting marketplace app or commission an expensive custom project. With AI-assisted development there’s now a third: your own extension that fits your process exactly — at a fraction of previous costs.
We speak from experience. With work247 we built a full real estate app for GoHighLevel, with Bookique a booking app for Shopify, and with GARAN-Label a Shopify app for the new EU labeling requirement. All three run on dedicated servers in Germany.
Why build your own extension?
No system switch
Your team keeps working in the interface they know. The new function appears where it’s needed: in the Shop admin, CRM menu, or on the product page.
Your exact process
Instead of bending your processes to a standard app, we adapt the app to your processes. Fields, rules, copy, and workflows to your spec.
Official interfaces
We use the platforms’ official APIs, app frameworks, and webhooks. Core updates won’t break your extension.
Data stays connected
Contacts, orders, objects, and appointments flow both ways. No double entry, no Excel stopgaps.
Marketable as a product
If your solution helps others too, we prepare it for the Shopify App Store or GoHighLevel Marketplace — billing included.
Servers in Germany
App logic and database run on your own Hetzner server. Great for privacy, speed, and independence.
What we build for platforms
Shopify
Embedded apps in the Shop admin, Theme App Extensions and app blocks, checkout and customer account extensions, metafields, and subscription billing via Shopify.
GoHighLevel
Marketplace apps with Custom Objects, workflow actions and triggers, website widgets, Custom Menu Links, and integrations to external specialist systems.
HubSpot
Private and public apps, CRM cards, custom objects, sync with ERP, shop, or line-of-business software, and automated data hygiene.
And other systems
WordPress and WooCommerce, Pipedrive, Notion, Airtable, Microsoft 365, or your industry software — as long as there’s an interface.
From need to finished app
- 01
Describe the gap
Show us where things snag. We check what the platform APIs allow and which path is the cleanest.
- 02
Prototype in a test system
We build a first version in a dev shop or test account. You try it out with real workflows.
- 03
Harden and extend
Permissions, error cases, multilingual support, privacy webhooks, and load tests. Only then is it an app.
- 04
Install and operate
Privately in your account or publicly in the marketplace. We run the servers and keep the app current.
FAQ
Fragen zu Extensions for your systems
Does my extension have to go into an app store?
No. An app can be installed privately for your shop or CRM account only. We only go to the Shopify App Store or GoHighLevel Marketplace if you want to offer your solution to others.
What if the platform updates?
We work with official, versioned interfaces. If a platform sunsets an API version, we update your app in time as part of ongoing support.
Can you adapt existing apps?
If source code is available, yes. Often it’s more cost-effective to build a lean custom app that does exactly what you need instead of reshaping a third-party one.
Which systems do you develop for?
Our focus is Shopify, GoHighLevel, and HubSpot. In principle, we can extend any system that offers a documented API or extension framework.
Contact
Have an idea that used to be too expensive?
Tell us about it. In a short call we’ll clarify what’s possible, how long it takes, and what it costs.