Services
Software, web & apps – from a single source
From the first idea to ongoing operation: I build custom software, web apps and mobile apps for companies, universities and the public sector in Baden-Württemberg.
How I can help
Three core services, one direct point of contact – no friction between concept, design and development.
Web Development
Fast, SEO-friendly websites and web apps built on a modern stack – from landing page to complex platform.
Learn more →App Development
Native and cross-platform apps for iOS and Android (Flutter) – performant, maintainable and with thoughtful UX.
Learn more →Custom Software
Software tailored to your processes – automation, internal tools, integrations and data instead of off-the-shelf compromises.
Learn more →How a project runs
- 1
Getting to know each other
In a free first call we clarify your idea, goals and constraints – honestly and without sales pressure.
- 2
Concept & quote
You receive a clear concept with scope, timeline and a transparent fixed-price or effort estimate.
- 3
Development
Built in short, visible stages. You see working versions early and give feedback throughout.
- 4
Launch
Clean deployment, testing, handover and documentation – your solution goes live, stable.
- 5
Operation & maintenance
On request, ongoing maintenance, updates and further development via a service contract.
Frequently asked questions
Do you work with smaller budgets too?+
Yes. We often start with a clearly scoped first step (MVP) that delivers value quickly and build on it from there.
Do you take over existing projects?+
Yes, I also continue and maintain existing applications – after a short review of the current state.
Who is my point of contact?+
You talk directly with me, Tillmann Lang. When needed I bring in vetted partners, but coordination stays with me.
Let's talk about your project
Tell me briefly what you have in mind – I'll get back to you personally with an honest assessment.