App DesignUser experience first
When designing and implementing digital interfaces and apps, the experience users have while interacting with them is decisive. Does one step follow logically from the next? Are the available options clear and easy to understand? Does the design support a lasting, pleasant user experience? Quandel Staudt develops apps that guide users intuitively toward their goal.

Your user interface design agency
We conceive, develop and design apps, including testing, release and subsequent support during operation.
Starting with concept & app design
Before things become digital, our app designers start analog and need to know and understand your requirements and target audience in detail. For this we use personas or user scenarios for interacting with the app. We then create wireframes, both analog and digital, and define a rough concept for the content and desired functions of the app. User tests can already be carried out at this stage, following the motto: learn early and often, so adjustments can be made quickly and early.
Mobile app design with relevant information
From the start, the small playing field of the smartphone display defines the design framework: users can only process a few pieces of information or interaction options per screen. The sequence of information over time therefore plays a decisive role in creating a pleasant and intuitive user experience. This also means that all elements must be clear: buttons are easy to recognize as buttons, large enough and clearly labeled. Instructions must be clear, positive and consistent, and the most important points should always be mentioned first. Familiar patterns such as menu positions, learned finger gestures or simple thumb operation contribute to a pleasant UX.

Can't stop thinking about your app idea?
We are your user interface agency in Frankfurt to make your idea a reality.
Call us at 069 242777-51
or contact us by email

Transitions & screen animations in the app design interface
To make the transition from screen to screen pleasant and understandable for users, we use transitions and micro animations intelligently. Users also receive important feedback on their interactions. What this looks like depends on many factors and can be subtle or very clear: perhaps a button or icon lights up, a modal layer opens with a personalized message, or the device vibrates or gives an audible signal.

When app development starts
We implement all previous considerations technically during the development phase and incorporate your wishes and feedback. We work iteratively using the Kanban model. With our external partners, we can program apps natively for Android or iOS. In this case, app and operating system work together perfectly, which makes the app more performant. We can also offer cross-platform solutions that can be used as cost-saving universal solutions and brought to market faster.
App development
and app design
from a single source
Technical, methodological and design expertise come together with us:
- Frontend development
- Backend development
- Iterative work
- MVP
- Gamification
- iOS & Android
- Cross-platform frameworks
- Native app development
- Lean startup method
- Concept test
- Prototyping
- Graphical user interface GUI
- UI / UX
- Templates
- Typography
- Responsive layout
- Usability
- Intuitive app design
- Menu structure
- Mockups
- Click dummy
- Wireframes
- Design Rails
- Targeted design
- Two-tap rule
Making interfaces experiential
The small smartphone or tablet display is the window into a new world that we want to experience and understand. Elements therefore often orient themselves toward our real, three-dimensional world, even though they still exist flat on the screen. Gradients give elements volume, make them cast shadows or appear raised or recessed. Semi-flat and flat design are variations of this, but they also cannot do without these visual tricks: a lot of space on a small surface.
For a perfect
user experience
for your target audience

Lively app design
We love and use apps, on average five every day. But only the ones that are actually enjoyable. That is why we always keep both technology and design in view, so your users have an optimal experience. The special media possibilities should also be used: multi-touch, camera use, motion sensors or GPS offer important and meaningful interaction and design potential, depending on the app's use case.
Can't stop thinking about your app idea?
We are your user interface agency in Frankfurt to make your idea a reality.
Call us at 069 242777-51
or contact us by email