Software development from Berlin

Make your product, work or company stand out.

With native apps for iOS, Android and macOS, well-built web applications and AI that takes real work off your hands – software development from Berlin, from idea to operation.

Start a project

ContoTrip – our iOS app for travel expenses View the project
  • iOS
  • Android
  • macOS
  • Web
  • AI

Our approach

Thought through, built properly

We stay with a project from the first conversation to live operation. A small, experienced core team works with you directly and brings in specialists for the tasks that call for them.

  • Consulting
  • Concept
  • Development
  • Support
  • Native, not templates
  • Code of our own
  • Privacy from day one
  • One point of contact

More about us

Projects

Our own products, real code

We do not only build for others. Our own apps show how we work – from the data model to the App Store submission.

All projects
  • ContoTrip iOS app for travel expenses: multiple currencies, frozen rates, AI receipt recognition with your own key.

    iOS (iPhone) · 2026

    • SwiftUI
    • SwiftData
    • CloudKit
  • Avantido iOS to-do app: capture tasks by text, voice or photo – the AI turns them into prioritised entries.

    iOS (iPhone) · 2026

    • SwiftUI
    • SwiftData
    • CloudKit
  • Entity Visualizer Internal macOS tool: Doctrine entities and SQL dumps as an interactive ER diagram – and back again.

    macOS · 2026

    • Electron
    • React
    • React Flow

Technology

Our toolbox

Proven tools we use every day – on the iPhone, on the Mac and on the server.

Apps

  • Swift
  • SwiftUI
  • Kotlin
  • React Native
  • Electron

Web and server

  • TypeScript
  • PHP
  • Symfony
  • Sulu
  • Shopware 6
  • Go
  • MariaDB / MySQL

At a glance

What you can rely on

platforms: iOS, Android, macOS
3
languages: German, English, Turkish
3
fixed point of contact
1
code of our own, no template kits
100%

Blog

Notes from development

What we learn while building – written down for anyone facing similar decisions.

Read the blog
  • · Apps

    From prototype to App Store submission: our checklist

    The app works, but the road into the App Store has hurdles of its own. What we learned submitting ContoTrip and Avantido – from the company account to the reviewers’ follow-up questions.

  • · E-commerce

    Shopware 6: plugins, not core hacks

    Change the Shopware core and the next update sends you the bill. How we extend shops so they stay updatable – with plugins, decorators, events and template inheritance.

  • · Web & CMS

    Sulu CMS 3 for multilingual company websites

    Separate URLs per language, a fixed contract between templates and content, and search without an external service: this is how we build multilingual websites with Sulu 3.

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