UI UX Design Interface User Flow

SaaS UI/UX Design Services For Products Your Users Will Love

Are you a tech founder or SaaS company with a vision for an amazing product, but unsure of how to bring it to life in a way that resonates with your target audience? Or do you have an existing product that could benefit from a fresh perspective on your UI/UX design?

As a serial tech entrepreneur and award-winning digital product designer I created Superfounder to be the startup UI/UX design agency that understands the unique needs of tech and SaaS companies.

Sebastian Scheerer is a designer and startup founder of Wunderlist and ottonova

Hey there!

My name is Sebastian Scheerer, I'm a serial tech-founder and senior product designer. I've had the privilege of co-founding and leading design at two successful companies - Wunderlist (which was acquired by Microsoft) and ottonova.

These ventures have attracted the attention and investment of world-renowned investors like Sequoia, Early-Bird, and Atomico, raising over 200 million dollars in total.

With over 11 years of experience in UI/UX design for apps, digital products, and websites, as well as product strategy, I have a proven track record of delivering results for founders and startups. My companies have been featured in leading publications like TechCrunch, VentureBeat, Business Insider, The Next Web, Mashable, and Product Hunt.

I work with selected companies and founders who I believe have the potential to create successful products. I'm passionate about using my skills and expertise to help bring their ideas to life and make a positive impact on the world. If you have an exciting project or idea that you think I could contribute to, don't hesitate to reach out. Let's chat and see if there's a fit for collaboration.

Why create your mobile app or SaaS UI/UX design with Superfounder?

At Superfounder, we understand the unique challenges that tech founders face when it comes to designing their mobile, desktop, or web apps. As a successful tech founder myself, I've built award-winning products and have firsthand experience navigating these challenges.

We believe in product first

A well-designed SaaS product that is easy to use and provides value to users can lead to increased adoption and usage, driving up revenue for your company. Invest in a strong product and user experience to boost your business's success.

We focus on helping your customers succeed

Your SaaS software product isn’t worth anything if it doesn’t help your customers reach their goals and make their lives better. Thats’s why we always make sure that we design usable solutions that address user needs.

We make sure your product is simple and beautiful

Breakthrough products don't just get the job done - they also stand out with their simplicity and polished appearance. In today's competitive market, a minimum viable product isn't enough. You need a product that users will love in order to succeed. As the designer of products like Wunderlist, I have seen firsthand the transformative power of good design.

We know what it takes to design successful software products

As seasoned founders and UI/UX designers with a deep understanding of the SaaS and tech startup world, we know exactly what it takes to create a winning product. Over the past decade, we've launched numerous products that have been loved by millions of users, and we're proud of the work we've done.

We're always striving to constantly learn, improve and push the boundaries of what's possible. That's why we only work with the best of the best when it comes to designers and developers that help us deliver the top-notch designs that your product deserves.

Sounds good? Let's chat and see wether we're a fit. Book your free consultation now.

Mobile and desktop UI design

Mobile & Desktop Interface Design

We are experienced in creating entire SaaS UX and UI designs for mobile and desktops apps alike. Whether you are looking for a complete redesign or just a few tweaks here and there, we got you covered.

Book a free consultation

Visual UI Design Direction

Not sure how your product should look like? Want to have an appealing design but not sure how to get there? Let us show you what it could be and give your team the inspiration and a clear direction to follow for your visual design and design aesthetics.

Book a free consultation
Visual design icons
Design strategy sketch

Product Strategy

Do you know what makes your product unique? Do you even know what your product needs to do for your target audience? If not, let us help you figure this out and come up with a winning strategy.

Book a free consultation

Our UX / UI Toolbox

Usually a project will result in one or more of these deliverables.



A wireframe is a visual representation of your product without the cosmetics . It helps you understand the structure of your product and gives you a starting point for further development.


User Flows

User flows will walk you through all steps of a user journey. This way you can see where improvements can be made and get a better understanding of who your users are.



You want to test out your prototype before going live? No problem! We will build prototypes for you so you can test them out yourself.


Design System

Building apps at scale is challenging. A good design system will save you time and money by reducing rework. We will create one for you so you don’t have to worry about building your own.

Case Studies

Projects we worked On

nftfolio logo

Know your NFT net Worth

We were excited to take on the challenge of designing the UI/UX for NFTfolio, the premier app for tracking your non-fungible token (NFT) investments. Our goal was to create a user-friendly platform that allows users to easily track the performance of their NFT portfolio in real-time. With NFTfolio, you can have confidence in the data quality and accuracy of your investment information. Whether you're a seasoned NFT investor or new to the game, NFTfolio is the perfect tool for keeping track of your portfolio.

  • check
  • check
  • check
    Web App UI/UX Design
NFTFOLIO ui/ux dashboard design
Leagues Football Logo

The Football Timeline

We were thrilled to be able to design the UI/UX for Leagues Football, the upcoming go-to app for football Fans in Germany. With Leagues, users can access live audio, video, and text content in a seamless timeline directly on their device. This one-of-a-kind app gives even the most dedicated fans a way to stay up-to-date on their favorite teams and players. We're proud to have created a user experience that enhances the enjoyment of following football for fans across Germany.

  • check
    Product Discovery
  • check
    User Flows
  • check
    Mobile UI/UX design
Leagues Mobile App UI/UX Design
Communifty Logo

NFT Based Communities

With Communifty, you can easily sell access to your online course or community through the use of non-fungible tokens (NFTs). Our team at [Company Name] was responsible for the UI/UX design of the responsive web app, and we focused on creating a user-friendly experience that is accessible to users of all skill levels. The result is an app that is not only functional, but also enjoyable to use.

  • check
    Product discovery
  • check
  • check
    Responsive webapp UI/UX design
Communifty Course Creation UI/UX  Design

Client testimonials

Hear from the founders themselves how our UI/UX design services helped them build better products.

Our app suffered from feature creep and therefore lacked a top notch user experience. Sebastian helped us a great deal in creating better, cleaner user experiences with less distraction. He also had a huge impact on the general look and feel of our app, which looks slicker and more professional than it did before.

Florian Hassler
Florian Haßler, Founder of FRYD

I was sceptical if Sebastian would understand the complexity of our app but was very impressed by his skills and vision. Not only is he an extraordinary designer, but also an awesome strategist who helped us figure out what's best for our product. Our users love the design. Highly recommended. I love working with Sebastian and he is now my goto person for everything Design and UX related.

Alexander Sachs
Alexander Sachs, Founder of NFTFOLIO.io

I consulted with Sebastian about creating a pitch deck for a preseed/seed round as well as continuous UX/UI sparring. The 360° view and implementation was very exceptional and very helpful. From a strategic flight level to practical details, Sebastian led us to quick iterations and results. If you want to develop a user-friendly digital product and need a very good and experienced consultant, sparring partner or navigator, Sebastian is the best I can recommend

Makrus Kleber
Markus Kleber, Founder of Leagues Football

Before working with Sebastian I wondered if my idea was good enough.He not only helped me to improve my app design and pitch deck a lot but also to grow my entrepreneurial and personal skills. It was great to have him as an experienced founder on my side. It makes a huge difference how you will present your product.

Vincent Orlandini
Vincent Orlandini, Venture Development Manager Lufthansa Innovation Hub

Do you want an UI / UX expert to help with your design?

Tell us about your project and let's create an action plan for your needs!

Our UX/UI Design Process

Software projects are hard to predict. Usually that means that the bills keep mounting and the goal post keeps moving. We don't bill hours. We don't believe that it makes sense. We agree on an outcome and make it happen. From start to finish. If it takes longer than expected? Don't worry, the price will stay the same

Frequently Asked Questions

Why UX Services Are Important?
Your user experience IS your product. It's literally what your customers experience when interacting with your company. You need to think about how they interact with your product and how that affects their overall experience. Having a great UX is more than checking a buzzword off your list, it's absolutely vital to the success of your product.
How can we use UI services to improve our product?
The user interface are the actual elements on the screen the user interacts with. So think about the UI as a subset of your UX. Having a polished user interface therefore will be an important part of how your user experience feels. Learn more about UI design here.
What is UX design?
UX Design is the process of designing a product or service to be used by people. It’s about understanding what users need, and then creating solutions that meet those needs. The goal of UX design is to create products that are easy to use and understand for everyone who interacts with them.
Why work with Superfounder for your UI/UX Design needs
We're not just an agency. We are actual founders and senior product designers of real world companies and products. We've built award winning apps. We've iterated product experiences across multiple platforms. We know what it takes.
Which one would be better? Hiring an internal design department or looking for a UX/UI company?
The answer is: It depends. See assembling a great team of designers isn't easy. And it's not cheap either. If you know what you're doing and have the funds, go for it. But if you need to get results quickly and don't have a generous payroll budget, hiring a design agency can be the better option.
Have more questions?
If you're not sure, let's talk and we can help you figure out what your needs are. Book your free consultation now.
What if I don't have the money to hire someone to design my app or website?
There are many great pre-made ui kits and website templates that can help you create great looking user interfaces quickly at low-cost. This can be a great solution, especially for founders who don't have the money to spend on a custom made design.

Is your UI / UX design holding you back? Let's talk!