App development: test your idea in weeks
wunderwerk builds your app as an MVP in 4 to 8 weeks, tests it with real users and then develops it further.
- 80+ projects
- 5.0 on Google
- Clients for 10+ years
- EU & GDPR first
- Directly with the managing director
Where are you with your app idea right now?
wunderwerk starts wherever your app idea stands, whether it is a napkin sketch or a finished concept. A clickable prototype takes a few days, an MVP for real users 4 to 8 weeks.
“We have an idea, but we don't know whether it will work.”
Within a few days we build a clickable prototype, and within 4 to 8 weeks an MVP with the core features. Real users test it, and you decide based on results whether to expand, adjust or stop.
“The concept is ready. Now we need an agency that delivers.”
One codebase for iPhone and Android, whether a field service app, a service app or an ordering app: including backend, integrations, push notifications and publication on the App Store and Google Play. You get a test version on your phone every week.
“Our customers and staff should be able to use it in the browser, without installing anything.”
Web application, customer portal or SaaS product: runs on any device, is updated instantly and can be connected to your ERP, shop and CRM. If needed, also as a desktop application for Windows and Mac.
“With AI, our app should be able to do more than a form.”
Chat with your data, analyse photos and documents, generate texts and suggestions: we build AI features in from the start, GDPR-compliant and hosted in the EU. Find out more about our AI consulting.
The digital twin of your business
A digital twin is a virtual copy that runs on real data. That is exactly what your app becomes for your race, your store, your club or your device. Everything that matters is live in one place, and your customers, members or technicians act on it right in the app.
What your own app does for you
Your app is your direct line to your customers: on their home screen, with your logo, without going through platforms and ads. Figures from retail show how naturally customers use it.
72 %
have retailer apps on their phone
Almost three in four smartphone users in Germany have at least one grocery retailer's app installed, up from 58 % a year earlier. Your customers are used to apps.
66 %
use the customer card or loyalty programme
Two thirds of these app users use the digital customer card or a loyalty programme in them. Customer loyalty that comes along with every purchase.
49 %
shop more often because of the app
And 50 % buy more, according to a retailer app study. Repeat visits happen when the app gives a reason: offers, points, service.
Sources: Bitkom, representative survey of 1,138 smartphone users in Germany, press release of 4 February 2025 (72 %, 58 % the year before; 66 % of grocery retailer app users); Simon-Kucher, retailer app study 2024 (49 %, 50 %).
Service apps customers enjoy using
Customers keep a service app when it helps them in everyday life, for example with a customer card, in-store stock or reminders. Two examples from retail show which features those are, and they carry over to almost any business.
“I plan at home and find the right shelf in the store straight away.”
- Project planner with a materials list for the next DIY project
- Product finder with aisle and shelf in the store
- Stock per branch, before the customer sets off
- Digital customer card with purchase history and receipts
- Guides and videos for doing it yourself
“The app knows my dog and reminds me before the food runs out.”
- Pet profile with species, breed and age
- Bonus points on every purchase, in store and online
- Personal offers that match the pet
- Reminders to reorder, or as a subscription
- Advice on nutrition, care and health
We combine what fits your business and connect your POS, inventory management, shop or CRM. To start, two or three building blocks in the MVP are often enough.
Gamification: reasons to come back
Points, challenges and badges turn an app people install once into one they open every week. Used well, gamification rewards exactly the behaviour that helps your business: visits, purchases, referrals, training sessions.
What research says
A widely cited review of empirical studies shows positive effects of gamification, but they depend greatly on the context and on the users. That is why we test game elements in the MVP with real users before you invest in building them out.
Hamari, Koivisto & Sarsa: “Does Gamification Work?”, HICSS 2014
How much does it cost to have an app developed?
At wunderwerk, the cost of an app depends on four things: the feature set, the platforms (iOS, Android, web), the integrations with existing systems and the standards for design and user experience.
That is why we don't quote a flat price, but give you a transparent cost range before every step. The first stage is deliberately small: an MVP with the features real users need. You invest step by step and decide after each step whether to continue.
How we keep costs down
- MVP scope instead of the full build
Together we cut everything that isn't needed for the first test. What users really want comes in the next stage.
- One codebase for iOS, Android and web
With React Native and modern web technologies, the app is built once and runs on all platforms instead of being developed three times.
- AI-assisted development
Our wunderbots take over routine work in code, tests and documentation. More for the same budget, faster to market.
- Factor in funding
Many app and digitalisation projects qualify for grants. In a free funding check, we clarify with you which programme is open now.
How does app development work?
wunderwerk develops your app in five steps: initial consultation, concept with a clickable prototype, MVP in 4 to 8 weeks, testing with real users, then build-out, launch and operation. Every step has a clear outcome, and you decide after each step whether to continue.
- 1
Initial consultation
30 minutes with the Managing Director: your idea, your target group, your budget. You get an honest assessment of whether and how the app can be built. Free and non-binding.
- 2
Concept & clickable prototype
Within a few days: user flow, core features and a clickable prototype you can show to customers and partners. Plus the MVP scope and a transparent effort estimate.
- 3
MVP in 4 to 8 weeks
We develop the first usable version in an agile, AI-assisted way. You see progress every week, get test versions on your phone or in the browser and give feedback directly.
- 4
Testing with real users
The MVP goes to your first customers, staff or pilot partners. Usage, feedback and metrics show what works. You decide based on results, not assumptions.
- 5
Expansion, launch & operation
We develop the app into a production-ready version, publish it on the App Store, Google Play or the web and, if you wish, remain your technology partner for maintenance and further development.
AI writes code. We build software.
Thanks to wunderOS and our wunderFactory.
AI has opened up programming to everyone: anyone can put a prototype together today. Whether it turns into software that holds up in day-to-day operation is decided afterwards – in architecture, security, testing and maintenance over the years. That is exactly where prompting and real expertise part ways.
That is why we built our own operating system: wunderOS runs our company from sales to development. At its heart is the wunderFactory, where our AI agents, the wunderBots, build to the architecture rules, standards and tests from 20 years of software development – led by experienced software architects.
The result is software built noticeably faster and more affordably – in the quality you hire us for. We are AI experts and use that to get the best out of your project.
More software for the same budget
The wunderBots handle the routine work. You pay for architecture, decisions and results – not for legwork.
Live in weeks, not months
From the workshop to the first usable version, with changes after that in days. You see early on what works.
Quality is built in, not bolted on
Tests, reviews and security checks run automatically in the wunderFactory with every change – not just when there is time.
Architects, not prompters
The AI executes, we decide: data model, interfaces, operations. That way your software stays maintainable and extensible five years from now.
Bottom line: Bespoke software on terms that make sense for SMEs too – built with AI, with software architects accountable for it.
Thank you very much!
I will get back to you as soon as possible!
You can also book an appointment in my calendar right away: Book an initial consultation
Everything that comes with your app
An app is more than a few screens. As an app agency, wunderwerk delivers the whole package: iOS and Android app from one codebase, web app and backend, integrations, design, store publication and operation.
Not just clients. Partners.
We focus on long-term partnerships. You stay flexible thanks to open standards and clear documentation.
What our clients say:
A selection of our client feedback.
★★★★★Many thanks for building and looking after our online learning platform.
We can wholeheartedly recommend Christoph and his entire team.
Whatever we ask for, almost everything is made possible, and the ongoing personal contact works brilliantly too. Many thanks.
We run the online shop thecurtain.shop for made-to-measure curtains and Roman blinds.
Working with wunderwerk was excellent in every respect.
Thanks to their work, we can offer our customers an intuitive, professional shopping experience that perfectly reflects our craftsmanship. Many thanks for the great collaboration!
Very likeable wunderworkers! Fast, uncomplicated, competent and always ready to save the world!
Highly competent support. Well advised all round.
Chris knows how to solve a problem. Quality has a name: wunderwerk.io
We had the wunderworkers develop bespoke industrial software for creating recipes for a highly sensitive industrial process.
The collaboration was extremely professional from the outset: the team quickly understood our complex requirements, implemented them precisely and always paid close attention to maximum reliability and security. I would particularly like to highlight their technical know-how, clean documentation and fast response times for questions or change requests.
The recipe editor is now running in several plants in Sweden, Italy and the Czech Republic.
The software runs reliably, is intuitive to use and our customers are completely satisfied. We can recommend wunderwerk without reservation!
wunderwerk built a digital solution for my photography business that has been running stably and reliably for years. The support is top-notch, reliable and competent. I can only recommend them.
Christoph Niedermoser and his team impressed us with their professionalism, precision and reliability, both in the consulting phase and in the implementation that followed.
Our requirements were implemented perfectly, and the GPS tracking system has now been in successful use in several of our facilities for a number of years.
Chris and his team gave me superb advice on my app idea. Uncomplicated, fast and professional! Highly recommended!
We have already implemented and completed several projects together over the past few years.
Professional implementation and personal contact.
Highly recommended!
Perfect implementation of our
billiards platform.
A very pleasant collaboration. It was fun! Highly recommended!
🇦🇹 Funding check
Which funding fits now?
Planning a digitalisation project in Austria? KMU.DIGITAL, Austria’s SME digitalisation programme, no longer accepts new applications: its budget is used up, and it will not continue from 2027. As a KMU.DIGITAL Certified Digital Consultant (CDC), I show you in a free funding check which programmes fit your project now.
What we clarify in a free 15-minute call with the founder of wunderwerk:
- Whether your company and your project are eligible
- Which funding programme is currently open
- What you need to consider before applying
- Which costs are eligible
Important: The safe order is: application first, costs afterwards. Only the funding body can decide.
Why us?
What else is on your mind?
Many projects touch more than one topic. Here are the other areas in which we support businesses.
Ready to test your app idea?
Napkin sketch or finished concept: in a 30-minute initial consultation we clarify what your MVP looks like, what it costs and when the first users will be working with it.
Frequently asked questions about app development
Your question isn't listed? We will answer it directly with the Managing Director in the free initial consultation.
How much does it cost to have an app developed?
At wunderwerk, the cost of an app depends on the feature set, the platforms (iOS, Android, web), the integrations and the design standards, which is why there is no flat price. You receive a transparent cost range before every step and start with a deliberately small MVP, so you safeguard your investment step by step. You can get an initial estimate for your project via the cost calculation or in the free initial consultation.
What is an MVP (Minimum Viable Product)?
An MVP is the first version of an app with only the features real users need to experience its core benefit. Instead of spending months building everything, you test with a manageable budget whether users adopt the product, and only then invest in expanding it. wunderwerk develops MVPs as mobile apps, web apps or desktop applications, usually in 4 to 8 weeks.
I have an app idea. How do I make it happen?
Ideally in three steps: sharpen the idea and target group, build a clickable prototype and test it on the market with an MVP. wunderwerk supports you from the very first conversation: in the initial consultation we give the idea an honest review, within a few days a clickable prototype takes shape, and within 4 to 8 weeks an MVP for your first users. You need neither technical knowledge nor a finished concept.
How long does it take to have an app developed?
At wunderwerk, a clickable prototype is usually ready within a few days, and an MVP with the core features after 4 to 8 weeks. The production-ready version with all features, integrations and store publication takes three to six months, depending on scope. You see progress every week and receive test versions continuously.
Native app, web app or both? iOS and Android?
For most projects, wunderwerk recommends one React Native codebase for iOS and Android, complemented by a web app if users also need the application on their computer. It feels native but costs considerably less than two separate apps. A pure web app is enough if you need neither a store presence nor deep device features. We clarify which option suits your target group in the initial consultation.
Can you build AI features into the app?
Yes. wunderwerk builds language models, image and document recognition into apps from the start, for example chat with your own data, automatic analysis of photos and receipts, or text suggestions. The models run GDPR-compliant with hosting in the EU, or on-premise if you prefer. Find out more on our AI consulting for businesses page.
Is the app GDPR-compliant, and where is the data stored?
Yes, wunderwerk builds data protection into every app from the start instead of retrofitting it. The backend and user data are hosted in the EU, or on-premise or in your own cloud if you prefer. Roles and permissions, consent for analytics and push notifications, data processing agreements and deletion concepts are part of the project. See secure software development for how wunderwerk builds security in from the start.
We already have a prototype built with Lovable, Cursor or a freelancer. Can you take it over?
Yes, after a paid technical analysis. wunderwerk reviews the code, architecture, security and rights to the source code and shows whether the prototype can be developed into a production-ready app or whether a rebuild is more economical. We see a quickly built prototype as a legitimate first step, not a mistake.
How does publication on the App Store and Google Play work?
wunderwerk takes care of the submission, the store listings with texts and screenshots, the review communication with Apple and Google, and updates. We set up the developer accounts in your name. With TestFlight and internal test groups, you get a version on your phone every week while the app is still in development.
Is there funding for app development?
Yes, many app and digitalisation projects qualify for grants, depending on country, region, company size and project. However, KMU.DIGITAL, the Austrian SME programme, no longer accepts new applications and will not continue from 2027. In a free funding check, wunderwerk shows you which programmes are available for your project now.
Do you continue to support the app after launch?
Yes. wunderwerk supports you from the idea to ongoing operation, with hosting in the EU, monitoring, maintenance, updates for new iOS and Android versions and further development with new features. We have been looking after many of our clients for more than ten years.
Why choose wunderwerk as your app agency from Austria?
wunderwerk is a small, well-coordinated team of software architects, full-stack developers and AI engineers in Tyrol, Salzburg, Vienna and Berlin with more than 20 years of project experience and 80+ projects, among them a learning app with over 30,000 users and a GPS live-tracking app for hard enduro races. Unlike with a freelancer, your app doesn't depend on one person; unlike with a large agency, there is no overhead; and you speak directly with the Managing Director. We work for start-ups and companies in Austria, Germany and Switzerland, remotely and on site.