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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Your expert for Interaction Design (IxD)

let’s dev - The brand for groundbreaking custom software

Interaction design is a central aspect of designing and conceptualizing digital products, focusing on how users interact with an application. It aims to enhance the user experience through intuitive and effective interactions, with usability, efficiency and aesthetics playing crucial roles.

In the world of apps, interaction design is especially important. Apps are typically designed to offer a wide range of tasks and functions within a limited space. Well-crafted interaction design enables users to navigate and utilize these functions effortlessly. Key aspects of interaction design for apps include designing navigation elements like menus and buttons to facilitate user guidance. The arrangement of content and the design of interaction elements such as sliders or touch gestures also play a significant role.

Overall, interaction design is an essential component of app development, significantly contributing to a positive user experience. Thoughtful interaction design can make apps more effective and increase user satisfaction.

Interaction Design (IxD)

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.

Digital Interactions

Digital interactions refer to any form of communication and exchange or the interaction between people and digital devices or platforms. This includes the use of digital technologies such as apps, websites and digital Platforms.

In a software service provider, understanding and design play a more digital role Interactions play a central role. The task is to be intuitive and create engaging user experiences that meet user needs. This requires a thorough analysis of the target group in order to understand their behavior and Understanding preferences.

Digital interactions should be designed to be seamless and user-friendly to offer users a pleasant and effective user experience. this includes Aspects such as a clear user interface, easy navigation, an appealing design and the integration of feedback mechanisms.

A software service provider positions itself as an expert for digital interactions, by developing innovative solutions that meet users' needs and support its customers’ business goals. This includes development Tailor-made websites, apps and digital platforms tailored to the specific Requirements and target groups are tailored.


According to the Duden dictionary, the term "design" refers to the functional shaping and resulting form of an object of utility. Accordingly, design not only creates an attractive appearance, but also pays particular attention to the demands of functionality.

A good design should always be oriented towards the people for whom it is being developed. The needs, requirements and interests of the target group should always be in focus, which makes a purpose-oriented approach possible. Sometimes in this point design differs from art.

Design is found in a wide variety of disciplines and we encounter it almost everywhere in everyday life. These are, for example, media, fashion or product design. In a technically oriented context, one encounters above all the terms software and user experience design.

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