App Development in Bielefeld
Want an app for your business in Bielefeld? In 21 days you click through your app, before any of it is coded. Then you get a fixed price for all of it.
Not just developers, but true consultants for your app!
In over 7 years, we've learned what truly makes apps successful. That's why we don't just develop; we also support you with concept, design, and marketing – as a team by your side.
How we build apps and what they cost is on our app development page.
This is what app development looks like in practice.
From the initial product idea to well-designed interfaces and scalable systems – our projects demonstrate how solid development and consistent design drive businesses forward.
See all projects

The platform for pet owners and pet professionals
With PetPlanner, pet owners find the right service providers near them, book appointments online and keep track of their pet's health data, appointments and key information at any time.
Energy that adapts to your life.
Clever-PV wanted more than just an app. They wanted to give households control over their energy. Our job: a UX and UI design that makes data clear, intuitive and easy to understand.
The app for everyone who loves cars and motorsport!
DeepDays is the app for car events, community voting and digital ticketing. From the first idea through UX/UI design to the technical build, we developed the product entirely ourselves and scaled it to over 50,000 users in a short time.- 200,000visitors

A festival that lets you play along.
For the Glücksgefühle Festival we built an app that gives 200,000 visitors interactive experiences, from ticketing and gamification to live communication. 
Manage thousands of vehicles at a glance
Smartmove needed a way to manage its vehicle pool efficiently. We built an intuitive interface with smart automation that's easy to understand in 10 seconds.
Recruiting software on autopilot
Recruiting is often chaotic and manual. With Funellab we built a platform that filters, organizes and matches applicants automatically.
Complex CAD workflows made simple and intuitive.
Mensch und Maschine specializes in CAD and BIM software. We built an intuitive solution that simplifies complex processes and makes it easy for teams to work together.- Confidential

For Red Bull Salzburg. That's all we can say.
Not every project can be shown. What we worked on for Red Bull Salzburg stays confidential. If you build with us, you can count on the same discretion. - Confidential

For Evergreen. And that stays between us.
What we did for Evergreen stays in-house. Here too, we can't show anything. If you build with us, you can count on the same discretion.
App Development in Bielefeld: From Design to Marketing
Developing a powerful app for your business doesn't have to be a mysterious endeavor. Our structured process ensures you always know where you stand.
Concept Phase
Everything starts with a clear plan. Together with you, we develop a solid concept – based on target group analyses, feature prioritization, and market research.
Platform-Specific Development
We work agilely – Scrum and Kanban ensure structure, transparency, and short iteration cycles. Simultaneous development for iOS and Android is standard for us, whether natively with Swift and Kotlin or cross-platform with Flutter and React Native.
Robust Backend Architecture
A robust backend is essential for an app that remains stable even under load. We rely on cloud services like AWS, Firebase, and Supabase, as well as frameworks such as Node.js and Django.
Targeted Marketing
A well-developed app also needs thoughtful marketing. We support you with App Store Optimization, search engine marketing, and social media ads.
Louis
Founder

Vera
Project management

Ivan
Design lead

Charly
Prototyping lead

Strahinja
Product design

+10 more
Development, design and marketing
Founders & Companies, who have entrusted us with their ideas & apps.
“Top service, top results”
From day one, working together was simply fun. Together we developed the design of an app for managing concert tickets, and our ideas and wishes were not only heard but actively taken up and developed further in a meaningful way. What we especially valued was that requirements weren't simply ticked off: whenever something wouldn't have been the best solution from a UX or product perspective, it was raised openly, honestly and always constructively – along with well-thought-out alternatives. The team really engaged with our project, contributed their own ideas and worked with us to create the best user experience for our customers. The feedback rounds were always constructive, the lines of communication short, and decisions could be made quickly. In the end, we not only got a modern, well-thought-out design for our ticket app that we are very happy with, but also a collaboration shaped by trust, transparency and real partnership. Everything ran reliably on schedule, and at all times we felt we were working on a solution together – not as client and service provider. That's exactly how you imagine working with an agency. ⭐️
Read more on OMR ReviewsSophiaMarketing Manager, München Ticket GmbHTranslated from German“Professional collaboration as equals”
KNGURU developed the UI/UX design and the web app for us, and we are very happy with the result. The collaboration works excellently, both in regular online calls and in person on site. Together we discuss ideas, question processes and develop solutions that really fit the product in the end. We would especially like to highlight working with Vera and Louis. The chemistry is simply right – you can tell that they are not only strong professionally but truly understand our requirements and vision. Our own ideas are taken seriously, developed further together and implemented constructively. That creates the feeling of working on a product together rather than simply being client and service provider. Before KNGURU, we had worked with two other agencies and unfortunately did not have good experiences. That made us all the more pleasantly surprised by the transparent communication, the open collaboration and the fair pricing. You always know where you stand, there are no hidden surprises, and in our view the value for money is absolutely right. We look forward to continuing to work together and can recommend KNGURU to anyone looking for a reliable partner for modern UI/UX design and the development of high-quality applications.
Read more on OMR ReviewsSteveManaging Director, nextGYM GmbHTranslated from German“Five years of strong and reliable collaboration”
Our collaboration with Knguru started around five years ago with the smartmove app and continues today, as the product is still developed. Knguru supports us with UX and UI design for new features and updates. They also designed and developed our new landing page, while the app itself was implemented by our team. What I appreciate most is that Knguru does more than simply turn requirements into designs. The team asks the right questions, challenges ideas when needed and often suggests improvements to the original concept. Their long term knowledge of the product and our goals makes discussing new topics much easier. Communication has always been straightforward and reliable. I can share feedback openly, decisions are explained clearly, and the team reacts well when priorities or requirements change. This has made the cooperation efficient and pleasant over the years. The quality of the work has remained consistently high. The designs are modern and polished, but usability comes first. This is especially important for smartmove, where users need a simple and intuitive way to book and use shared vehicles. The same approach was applied to the new landing page, which presents the product clearly. Considering the quality, experience and product knowledge Knguru brings to the project, I believe the value for money is fair. After five years, I see them as a dependable long term partner rather than simply an external design agency.
Read more on OMR ReviewsMichaelCTO, smartmove“First-class collaboration with an exceptionally creative team”
We worked very intensively with Knguru in Q1 2026 on a concept for a new training platform in civil protection. The collaboration was excellent, and the Knguru team contributed a great many very good ideas of their own that went far beyond the scope of a UX design. I have never experienced such outstanding collaboration on a project with any other team, and I'm thrilled. I can recommend Knguru wholeheartedly and look forward to working together again.
Read more on OMR ReviewsChristianCEO, Civentis GmbHTranslated from German“His constructive feedback took our product to the next level.”
I worked with Louis on my project for about two months and I'm really very happy with him. I especially valued his open manner and his constructive feedback, based on his solid understanding of the market and of customers. I'd work with him again any time!
Read more on GoogleMartinGoogle reviewTranslated from German“We had an app UI designed and were impressed by the visual quality and the quick turnaround.”
KNGURU also gave us valuable input on usability, logic and the design approach. Bottom line: highly recommended!
Read more on GoogleGraceGoogle reviewTranslated from German“Easy collaboration with excellent design results”
We have been working with KNGURU since the beginning of the year and are delighted all round. Coordination is easy and fast, the team responds quickly to requests, is friendly throughout and always implements feedback promptly and carefully. We especially value their proactive thinking: KNGURU brings in its own creative suggestions but also implements stricter requirements consistently and reliably when needed. The design itself is lovingly thought through and always user-centered – which also goes down extremely well with our stakeholders, who are thrilled with the results. The designs of our portal have even become the model for our client's new digital style guide.
Read more on OMR ReviewsPiaProduct Owner, HÄVG AGTranslated from German“One of the best agencies we have worked with”
- Very likeable and competent team - Very modern, high-quality designs, not only beautiful but also easy to use - Communication was fast, straightforward and always on equal footing - You can tell that KNGURU has a lot of experience with apps, websites and digital products - Clear processes and transparent collaboration - Highly recommended for UX/UI, web design and app development in Leipzig
Read more on OMR ReviewsTobiasProduct Manager, OpenCloud GmbHTranslated from German“Top agency with a real feel for good design”
Working together is a real pleasure: you describe what you have in mind and get it back, only more beautiful and better thought through. Communication is fast and straightforward. On top of that comes a modern, well-thought-out design that not only looks good but also simply feels right to use. I have full confidence that Knguru always gets the best out of the requirements, and I look forward to the first drafts every time.
Read more on OMR ReviewsGalynaProduct Owner, HÄVG AGTranslated from German“Very happy with the collaboration”
We are working with KNGURU Studios on the launch of our new platform and are very happy with the collaboration. We especially appreciate how they think for themselves. The team doesn't simply implement our specifications but brings in its own ideas and develops them further in a meaningful way. You can also tell how much effort and attention to detail goes into the designs. Communication is fast and transparent, and we always know where the project stands. Feedback is taken up and implemented quickly. We are very happy with the collaboration so far and can recommend KNGURU Studios to anyone.
Read more on OMR ReviewsMarvinFounder & Managing Director, Academy of eSports GmbHTranslated from German“Professional collaboration with transparent communication”
Our new website is still being built, but so far we are very happy working with KNGURU. The team works professionally, understands our ideas and implements them very well. We especially appreciate the fast communication and the transparent way of working, which lets us follow the project's progress at any time.
Read more on OMR ReviewsErhanManaging Director, Academy of eSports GmbHTranslated from German
Looking for first-class app development in Bielefeld? Secure your consultation now!
What platforms are supported?
We develop apps for iOS, Android, and Progressive Web Apps (PWAs), depending on the requirements of the businesses.
How long does development take?
Development time varies depending on the app's complexity. While simple applications can be completed in a few months, complex solutions require more time.
What technologies are used?
We rely on React Native, Flutter, Vue.js, Svelte, as well as AWS, Firebase, and Supabase for a stable and scalable infrastructure.
How much does app development cost?
The costs depend on the desired features and the complexity of the application. A detailed needs analysis helps with budget planning.
Do you support app marketing?
Yes, we offer App Store Optimization (ASO), targeted marketing campaigns, and digital strategies for long-term user acquisition.
App Agency Bielefeld - App Development for All Platforms
01
A combination of website and app
If your project is clearly defined and you want to start cost-effectively, a Progressive Web App (PWA) can be the right choice. PWAs use modern web technologies for offline capabilities and can be launched directly via a shortcut like an app – without a store download.
02
One app for all devices
Anyone who wants to offer a native app feel on all platforms without developing each one separately makes the right choice with cross-platform development. A shared codebase fully covers iOS and Android – efficiently, maintainably, and future-proof.
Efficient App Development: The Technologies Behind Our Apps
01
Compelling Mockups with Figma
To ensure your app is on the right track from the start, we involve you early and actively in the design process. Clickable prototypes make ideas tangible – long before development resources are committed.
02
React.js for boundless app development
Once the prototype is approved, we begin implementation – consistently based on the React ecosystem. React.js provides flexible, component-based frontends, Next.js optimizes server-side rendering for better performance, and React Native enables cross-platform mobile apps from a shared codebase.
03
Reliable Backend with AWS and Firebase
After launch, data is generated – and this data must be stored reliably and securely, even when usage significantly increases. We reduce operational overhead by using established platforms like AWS and Firebase, which expertly handle peak loads and independently manage backups and data security – allowing you to focus on further developing your app.
App development with React Native and cloud technologies.
- Front-end
- React NativeReactNext.JS
- Back-end & Infrastructure
- FirebaseNode.JSSupabaseRailway
- Integrations
- RevenueCatStripeGoogle APIsGithub
- Design & Prototyping
- FigmaFigJamIllustratorAfter Effects
- AI Integrations
- GeminiClaudeChatGPT
Book your free call.
We look at your plans with you as if they were our own. If the build isn't worth it, we'll tell you, even if that means no project.
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