App Development for Northern Germany.
I'm Tobias, a senior app developer with over 12 years of experience. I build native Android and iOS apps for businesses in Hamburg, Kiel, and across Northern Germany.

What I Can Do for You
From concept to App Store and beyond.
App Maintenance & Updates
Keep your app up to date
Store compliance, bug fixes, performance optimization, and regular updates, so your app runs reliably.
from 1.499 € / month
Feature Development
New features, seamlessly integrated
From UI improvements to complex features: I extend your existing app with modern technologies.
from 7.999 €
End-to-End Development
Your app from A to Z
From the first idea to publication: concept, design, development, backend, and deployment from a single source. Also available as a focused MVP for a fast market launch.
from 15.999 €
Architecture Consulting
Clean code in your team
I help teams adopt Clean Architecture, agentic engineering, and modern development practices: through code reviews, workshops, and hands-on mentoring.
On request
How I Work
Clearly structured and personal – for businesses that value quality.
My Process
Initial Consultation
We discuss your idea, goals, and requirements. Free and non-binding.
Concept & Proposal
You receive a concrete proposal with timeline, scope, and fixed price.
Development
I develop your app iteratively with regular updates. You stay in the loop at all times.
Launch & Support
Store publication, monitoring, and ongoing maintenance if needed. I'm here for you after launch too.
My Clients
Small & Medium Businesses
Need a reliable app but not a full dev team? I deliver professional results at predictable costs.
Startups & Founders
From idea to MVP in just a few weeks. Start lean, learn fast, grow strategically.
Businesses in Northern Germany
Hamburg, Kiel, Lübeck, Flensburg, and all of Schleswig-Holstein: personal collaboration on-site when it matters.
Corporates & Enterprise
Experience from large-scale projects for companies like IBM, RTL, and AOK. I understand the requirements of regulated industries and large teams.
More Services with AppBaumeister
Together with my team at AppBaumeister, I offer a broad spectrum of digital services.
AI & Automation
AI-powered solutions, chatbots, and process automation for your business.
Web & Cross-Platform
Modern websites, web apps, and cross-platform apps with Flutter and React Native.
Backend & Cloud
Scalable backend systems, APIs, and cloud infrastructure for your digital products.
IT Consulting
Technology consulting, architecture reviews, and strategic IT planning.
Senior Mobile Developers for Your Project
Top-tier mobile developers for iOS, Android, Flutter, and React Native – tailored to your project.
Developer, Not Headhunter
No 'Ugh, another recruiter' reactions – as a developer, I speak to candidates on equal footing.
12+ Years Experience
Deep technical understanding of mobile projects and your team's requirements.
Established Network
Many top candidates are already in my network – faster and more targeted.
Open Book Policy
Full transparency on all terms. You always know exactly what you're paying.
Let's Talk
Book a free consultation directly or get in touch.