let’s dev GmbH & Co. KG - The brand for groundbreaking custom software let’s dev GmbH & Co. KG - The brand for groundbreaking custom software

The brand for groundbreaking
custom software

Pioneering. Experienced. Ever exploring.


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let’s dev - The brand for groundbreaking custom software

Prototyping refers to the creation of a functional model or prototype of a product or application. The goal of prototyping is to create a tangible product early in the development process. Another important aspect of prototyping in UX design is the ability to gather feedback from potential users. By creating and presenting a prototype to users, designers can gain valuable insights into how users interact with the product and what problems or challenges may arise.

Furthermore, prototyping in UX design allows for early identification of errors or weaknesses in the design. By exploring and testing various design options, potential issues can be identified and addressed before the final product is developed, helping to save costs and time in the development process.

Another advantage of prototyping in UX design is the ability to present stakeholders and decision-makers with a tangible product. By showcasing a prototype, designers can better communicate their design decisions and ensure that all parties have a shared understanding of how the final product will look and function. Overall, prototyping is an essential component of UX design that allows for testing design ideas, gathering user feedback, identifying errors early and optimizing the design.

UX Prototyping

Our services
at a glance

We program customized apps and advise our customers on all topics related to app development. Our services are perfectly coordinated and based on experience from national as well as international projects.

User Experience (UX)

UX extends the concept of usability. Here, the user perspective is emphasized and emotional and aesthetic factors are more strongly included. UX describes the perception and reaction of a person resulting from the actual and/or expected use of a product, system or service. UX is not only about the mere achievement of a goal, but rather about the experiences that users have before, during and after using the product.

UX manages to arouse emotions in users. For this reason, the UX is a decisive factor in whether users associate positive feelings such as fun and joy with the product and whether they would like to use the product again in the future. The success of a digital product is therefore strongly linked to the implementation of a holistic UX.


A prototype in UX design is an early version of a product or application developed to visualize and test design ideas before actual development begins. In a software firm, the prototype plays a crucial role for designers and developers alike. For designers, the prototype allows them to translate their design concepts into a tangible form and expose them to a realistic usage scenario. Creating a prototype enables designers to quickly experiment with various design approaches, gather user feedback, and identify and address design issues early on. For developers, the prototype provides a clear understanding of how the developed software should look and function. With the prototype, they can better understand and plan the functionalities and features of the software.

Additionally, the prototype facilitates better communication and collaboration between designers and developers. By working together on creating and refining the prototype, designers and developers can ensure that the final product meets the requirements and expectations of users.

We make it simple

Software makes life easier. It makes it easier to organize, communicate, work, sell, entertain. That's exactly what we do at let's dev: We transform complex topics and processes into direct, structured interaction. Because we combine a lot of experience with even more curiosity, we achieve trend-setting and high-quality results. This makes let's dev the brand for groundbreaking custom software.

Contact us!

2 Locations
Karlsruhe & Hamburg


let’s dev GmbH & Co. KG

Alter Schlachthof 33

76131 Karlsruhe

+49 721 26 67 65 0


let’s dev GmbH & Co. KG

Eimsbütteler Chaussee 21

20259 Hamburg

+49 40 60 77 922 0