Header image of the Services section
Header image of the Services section

App development requires expertise

We develop apps for companies. Whether you already have an app that isn’t running smoothly, need help with a last-minute fix before release, or are just starting to design an initial idea for an app – we’re here to help. Our experienced in-house team offers you everything from a single source – from concept to development to quality assurance.

App development

B2B and B2C apps for businesses

Customised software development for Android and iOS is our core business. With our experienced developers, we bring your app into the stores or into your company. Project management, QA, concept and design, as well as the backend are all part of it. We can start in front of the whiteboard in our workshop or take over your grown code and continue working with it.

Picture of a working developer
Scoping Wartung

Even apps age and need care

Do you have an app, but something is not working? Don’t wait until you notice a drop in usage figures or your app starts to crash in the same places. Apps need to be updated regularly to new devices, systems and also the features of operating systems. When we get into an ongoing project or take over an app that is already in the app store, we start with a 50-point check. We review your app from the user experience to the code base.


My app has been removed from the app store

If your app has already been removed from the app store or is about to be removed, we can help. We analyse the communication with the platform operators and try to clarify the situation. Some apps are no longer supported due to changes in policies, sometimes they contain code snippets or images that are not allowed (anymore). We analyse your app, we advise you and, in the best-case scenario, we help you to bring your app back up to standard and back into the app store.

Notfall App Doctor
Less paper in companies

Paper in businesses

More than 50% of companies still use paper for receipts, documentation or as job tickets. These are then digitised again at great expense. An app could be a better solution here. It saves paper, your employees work with up-to-date data, mistakes are avoided and your process becomes more efficient. We listen, advise and understand. Together, we find out whether your process is suitable to be digitised with an app.


Creating app ideas together

Our experience, our perspective and your idea. From the first screens to the technical concept, we offer support in the early phases of a project together with your team. Here we rely on many years of experience, as well as proven formats and methods. In this way, ideas can emerge, grow and also be validated in our workshops, because not every brainwave has to be implemented.

Image of the workshops offered by Karlmax Berlin
Image of a roadmap and user stories

A roadmap for your app

A validated concept ensures that users of your app can navigate it without any issues and that the app is stable. It is the heart of your project and is therefore created in close cooperation.
In order for us to develop a common understanding of the conditions, ideas and wishes for your app, please feel free to use this PDF template. You can fill it out digitally and send it back to us. Together, we will create a roadmap and release plan that will be followed before development and release.


User friendly & stylish apps

We work with the design guidelines of the established platforms and understand how elements and functions are implemented in Apple and Android systems or with Flutter. We design apps and create screen designs, individual icons and illustrations in line with your corporate identity. Alternatively, we check your design drafts for the latest standards and suggest improvements if necessary.

Image of a styleguide

Project enquiries

Do you have a project idea or would you like to ask us some questions first? Feel free to contact us!

Sascha Scheiber
Product Consultant & Sales Manager

Project enquiries

Do you have a project idea or would you like to ask us some questions first? Feel free to contact us!

Sascha Scheiber
Product Consultant & Sales Manager

Image of three apps developed by Karlmax Berlin

How this looks like in real life: