From idea to
validated prototype
Develop your app or web idea as a fully functional prototype. With real features, not just click dummies - ready for real users and investor pitches.
What is Prototype Development?
A functional prototype is a fully programmed, ready-to-use version of your app or web application with all core functions. Unlike click dummies or mockups, you can use a working prototype on real devices and actually use all features.
I develop working software with the most important features in a short time. The prototype is fully programmed and runs on real devices. This allows you to:
- Present your idea to investors with real software, not just designs
- Get real user feedback with working features
- Onboard first customers and use the software productively
- Test performance and user experience with real data
Fully Functional
Real features that actually work - no fake buttons
Production Ready
Runs on real devices and can be used by real users
Backend & Database Included
Complete backend integration with real data, not just frontend
Scalable Foundation
Professional code that can be extended directly
My Services
From the first idea to the functional MVP - I guide you through all phases.
Concept & Ideation
Together we develop a concrete concept from your vision with clear feature prioritization.
UI/UX Design
Wireframes and interactive designs that inspire your users and are intuitive to use.
Functional Prototypes
Fully working software prototypes with real features - no click dummies.
MVP Development
Minimum Viable Product with all core functions - immediately usable for first users.
User Testing
Validation with real users through fully functional prototypes on real devices.
Scaling & Extension
Expansion of your working prototype with additional features and optimizations.
Perfect for Your Project
Prototype development makes sense in many scenarios - here are the most common.
Startup MVPs
You have an innovative business idea and need a prototype quickly to convince investors or win first customers.
Digital Transformation
Your company wants to digitize processes and needs a prototype for internal validation and coordination.
Product Innovation
A new feature idea should be tested before it is integrated into your existing product.
The Prototyping Process
From your idea to validated prototype in four structured phases.
Discovery Workshop
In an intensive workshop we capture your vision, target group and core functions. We prioritize features and define the scope for the prototype.
Conception & Wireframing
I create initial wireframes and user flows. This way you can see the structure and navigation of your app before we go into design.
Development & Programming
Development of a working prototype with real features. All core functions are fully usable and tested.
Testing & Iteration
Based on your feedback and real user tests, we optimize features and performance of the working prototype.
Tools & Technologies
From design tools to technical prototype development.
Why Prototyping?
The advantages of a professional prototype for your project.
Risk Minimization
Test your idea and collect feedback before investing in full development.
Fast Validation
In a few weeks you have a working prototype that you can test with real users.
Cost Efficiency
Changes in the prototype stage are significantly cheaper than in the later development phase.
Investor Ready
A working prototype convinces investors more than mockups - show real functionality.
User-Focused
Early user feedback ensures you develop a product that is really needed.
Clear Roadmap
The prototyping process creates a precise development roadmap for the next steps.
Successful Projects
From prototype to finished app - some of my successful projects.
GoMobile - Car Sharing App
Car sharing app for cities and municipalities with real-time map, Bluetooth vehicle access, and offline functionality.
Movearound - Corporate Fitness App
Corporate fitness platform developed as co-founder. Employees train in a network of various studios via QR code check-in.
Twork - Find Laptop-Friendly Cafés
A mobile app that helps you find the best laptop-friendly cafés near you. Built with Flutter, Laravel backend, and WordPress landing page.
Frequently Asked Questions
Answers to the most important questions about prototype development.
How long does prototype development take?
Depending on complexity and number of features, a working prototype takes 4-8 weeks. A simple MVP with 3-5 core functions is often ready in 4-6 weeks. More complex applications with backend integration, authentication and multiple features need 6-8 weeks.
What does a prototype cost?
Costs vary depending on scope and complexity, but typically range between €5,000 and €15,000. Since it is fully functional software, costs are higher than pure design prototypes, but significantly cheaper than full development. Feel free to use my cost calculator for an initial estimate.
Can the prototype be used productively right away?
Yes! The prototype is fully functional software that can be used productively right away. Many of my clients start with the prototype in a beta phase with first users. The code is professionally written and can be extended later with additional features.
What features are included in a prototype?
The prototype contains all core functions of your app or web application: user authentication, database integration, API connections, backend logic and a fully functional frontend. Focus is on the most important features (MVP), but everything included actually works.
Ready for Your Prototype?
Let's talk about your idea in a free initial consultation. I will honestly advise you on the best approach, feasibility and costs.