Your vibe-coded prototype becomes a scalable app.
Put it in the hands of software pros who build with AI themselves. We analyze your prototype for free and show you in 72 hours what stays, what needs rebuilding and what the finished app costs. Over 200 projects, our own app with 60,000 registered users.
Free, no obligation · Plan in 72 hours · five short questions first
5.0 · 50 reviewson OMR Reviews and Google
5.0 from 50 reviews on OMR and Google.
What clients say about our work on their apps and platforms.
Rated by teams atnextGYM · OpenCloud · smartmove · Academy of eSports · München Ticket · HÄVG · Civentis
“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.
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SteveManaging Director, nextGYM GmbHTranslated 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
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TobiasProduct Manager, OpenCloud 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.
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MichaelCTO, smartmove“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.
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MarvinFounder & Managing Director, Academy of eSports GmbHTranslated from German“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.
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ChristianCEO, 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!
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MartinGoogle reviewTranslated from German“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. ⭐️
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SophiaMarketing Manager, München Ticket GmbHTranslated 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!
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GraceGoogle 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.
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PiaProduct Owner, HÄVG AGTranslated from German“The new design gave our conversion a 31% uplift.”
I always thought it would be about the code, but our users care much more about the design! It was more than worth it.
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SaschaGoogle reviewTranslated 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.
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GalynaProduct Owner, HÄVG AGTranslated 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.
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ErhanManaging Director, Academy of eSports GmbHTranslated from German
How we analyze your prototype.
You send us the link to your prototype and, if you like, access to the code. We sign a non-disclosure agreement first. Then our developers go through it in four steps:
Click through it like a user
Sign-up, the key features, payment. Where does it get stuck, where do users drop off?
Read the code
Data model, login and roles, APIs. What's solid, and what only works with a small number of users?
Think through real load
What happens when thousands of users come at once? Who sees whose data? What if a payment fails?
Work out the path to the app
What stays, what gets rebuilt, in what order and at what fixed price.
After 72 hours you have your plan, for free.
Traffic-light ratings for five areas
- Data model and architecturecritical
- Login and rolescheck
- Paymentscheck
- Scaling and hostingcritical
- Security and privacyok
* Example case of a plan
What stays, what gets rebuilt
For example: the interface and user flow stay, we rebuild the database and login. You don't throw away what already works.
Roadmap in phases
First what your users need now, then the build-out. Each phase with its duration and result.
Fixed price for your app
What the finished app costs and how long it takes. No obligation to continue.
Video with our developers
They walk you through the plan point by point. Watch it whenever you like and forward it to management or investors. We're happy to answer questions afterwards in a call.
No catchThe analysis costs nothing. You keep the plan, even if you build it with another team.
In the end you have an app that grows with your users.
If you continue with us after the plan, we turn your prototype into the finished app, at the fixed price from the plan:
- Clean code in your nameCode, accounts and data belong to you, with documentation.
- Login, roles and payments that hold upeven when a hundred users turn into thousands.
- Hosting, backups and monitoringWe notice errors before your users do.
- Privacy handledhosting in Germany if you like, with a data processing agreement.
- Live on the web and in the storesApp Store and Google Play, if you want.
- You keep building with AIWe set everything up so you can keep building new features yourself with AI, without putting the foundation at risk.
Your prototype stays online until the new version is ready. If you like, we stay on board afterwards, so it doesn't all depend on one person.
DeepDays, our own app
We run our own app with 60,000 registered users.
- 60,000
- registered users with login
- €1 million+
- ticket sales through the app, first year
- 4.8 ★
- App Store and Google Play
Once real customers log in and pay, nothing can afford to fail. We build your app the same way.
Why not just keep building with AI?
AI builds what you tell it to. It doesn't know how many users will come, who is allowed to see which data, or what happens when a payment fails. It doesn't find its own mistakes. And if customer data is exposed, you're liable, not the AI.
What we do better
01
Experience from over 200 projects
We know which decisions get expensive later, and we get them right from the start.
02
We build with AI ourselves
That's why we're fast. Still, an experienced developer builds and checks every critical part: data model, login, permissions, payments.
03
We take responsibility
Fixed price, code in your name, and we stay on board if you want.
These pros turn your prototype into the app.
Our developers turn your prototype into the app. Ivan makes sure it's easy to use, Strahinja designs the screens, Vera keeps the schedule.
Louis
Founder
Vera
Project management
Ivan
Design lead
Charly
Prototyping lead
Strahinja
Product design
+10 more
Development, design and marketing
This is for you if …
- you've built a prototype with AI and real users should start using it soon
- it handles customer data or payments
- you don't want to start from scratch
We'd recommend something else if …
- you haven't built anything yet. Then our prototype in 21 days is the right fit.
- your app is stable but lacks users. Then read how we help apps grow.
Find out if it's right for you.
Five short questions, then you send us the link to your prototype. You get the plan in 72 hours.
What have you built?
Frequently asked questions
Is the analysis really free?
Yes. You get the plan, fixed price and video for free, with no obligation to continue. You keep the plan, even if you build it with another team.
Does everything have to be rebuilt?
Usually not. The plan says what can stay. We only rebuild what won't hold up under real-world usage, and we spell that out in the plan up front.
Can we keep building with AI ourselves afterwards?
Yes. We set up the code and workflows so you can keep building new features with AI, without putting the data model, login or payments at risk.
Who owns the code?
You do, before and after. Code, accounts and access credentials are all in your name.
What happens to our data during the analysis?
We work with read-only access or on a copy. Before we get access, we sign a non-disclosure agreement, and a data processing agreement if personal data is involved.
What does the finished app cost?
It's in the plan as a fixed price, before you decide. You only pay once you continue with us.
Book your free call.
We look at your plans with you as if they were our own. If building does not pay off, we tell you, even when that speaks against the project.
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