

Cross-platform app development
One code, many platforms
Cross-platform app development: fast, flexible, future-proof
We develop your apps for iOS, Android, and the web—all on a single code base. Our cross-platform development saves you time and reduces costs. Complexity in terms of performance and security is reduced from day one.
Whether it's an existing app or a greenfield project, we examine what really makes sense and develop solutions that can be flexibly adapted to new requirements. All without unnecessary technical baggage.

Our tech stack for your cross-platform project
We are open to all technologies and select exactly what suits your goals:
- Frameworks: Flutter, Maui, React Native, Kotlin Multiplatform
- Mobile Platforms: iOS, Android
- Web: Angular, React
- DevOps: Docker, Kubernetes, GitLab CI/CD
- Cloud: AWS, Azure
- Testing: Selenium, Cypress, RestAssured, Appium
Our services in cross-platform app development
From the initial idea to further development: our teams accompany your project through all phases—strategically, technically, and personally. We consistently combine architecture, design, development, and integration, while keeping the business benefits in mind.

App strategy & technology consulting
We listen, prioritize goals and work with you to develop a roadmap that fits the context.
Architecture & Development
We build apps on a stable foundation so they can grow with your needs. Robust, maintainable, and ready for new ideas without having to start from scratch every time.
Quality & safety
High quality through test automation, code analysis, and security by design. Our developers complete the Mobile Security School with a focus on OWASP Top 10 Mobile, secure authentication, and communication.
5 steps to your ready-to-use app
We are at your side from the first workshop to the go-live and beyond. Our approach is structured, iterative and transparent.
Interested? We will discuss your project free of charge in 30 minutes.
Why cross-platform app development with MaibornWolff is worthwhile
For us, cross-platform app development means more than just a shared code base. We ask the right questions about your requirements and provide you with technology-neutral, expert advice—so that the end result is a solution that is perfectly tailored to your specific context.
Your business first
We work as if we were part of your company: responsibly, proactively, and with clear focus.
Autonomy & responsibility
Our experts independently decide on the right architecture and use GenAI to maximum effect. Close coordination with our customers is a matter of course for us.
Tailor-made quality
No off-the-shelf solutions: We develop software that is as unique as your business model.
Proactive & committed
We think proactively, identify risks early on, and act quickly before problems and unnecessary costs arise.

I am really positively surprised by the cross-platform solution: it works well and runs smoothly. No compromises in terms of security, performance, or stability. The budget is significantly below the planned figure for native development.
Quality check for your app: focus on performance & accessibility
If your cross-platform app is already in use, it's worth taking a closer look at its stability, security, expandability, and user-friendliness. Our App Health Check comprehensively analyzes your application, from security vulnerabilities and stability issues to unnecessary complexity.
We also check whether your foundation is truly capable of supporting future enhancements. You will receive clear recommendations on how to improve modularity and code quality; we can implement these changes for you upon request. This ensures that your app remains efficient, robust, and future-proof.
Equally important: accessibility. Since June 2025, B2C apps must meet the requirements of the BFSG. We analyze your app specifically, provide pragmatic advice, and give clear recommendations for implementation. If you commission us, we will of course also take care of this. This ensures that your app reaches everyone and remains legally compliant.

This is what successful cross-platform projects look like
Our cross-platform solutions are used by well-known customers and in a wide variety of project scenarios. Some examples from our practice.
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inCTRL Solutions: Modernization of the IoT platform for water treatment plantsTo inCTRL reference
We are making the opsCTRL IoT platform highly resilient, maintainable, and capable of further development. New functions can be integrated into products more quickly.
inCTRL Solutions: Modernization of the IoT platform for water treatment plantsTo inCTRL referenceRenovationof the IoT platform
Maintenance & new featuresgo hand in hand
Change code quicklythanks to CI/CD pipelines
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TÜV NORD: IT system for damage assessmentsTo the TÜV Nord reference
With the cloud-based system, TÜV NORD experts can efficiently prepare and invoice damage assessments and vehicle valuations. Car dealerships can order spare parts directly after the damage calculation, which shortens the repair time by at least 2 working days.
TÜV NORD: IT system for damage assessmentsTo the TÜV Nord referenceSince August 2023in productive operation
2 daysTime savings for garages
Operation of the systemand the virtual infrastructure -
Research: AI-supported robotics for employees with physical limitationsSee robotics reference
With demographic change, employees with physical limitations need better support to remain productive. Assistance robots can help, but are not flexible enough. The KiRo4LeMi research project aims to use AI to dynamically adapt robots to individual changes in performance. Using digital models and "living personas", the AI optimizes robot operation in real time.
Research: AI-supported robotics for employees with physical limitationsSee robotics reference3 yearsresearch project, funded by the Bavarian Ministry of Economic Affairs
Design of the robotmore individuality thanks to AI
Digital twinhelps to be able to react quickly during operation
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Siemens: AI demand prediction platform for industrial production planningSee Siemens reference
Siemens is looking to the future with the AI Demand Prediction Platform. Thanks to machine learning and AutoML, precise demand forecasts can be created for over 100 products and production can be better planned. Launched as a proof of concept, the platform quickly developed into a system that can be used productively. The self-service web application will soon be used in other plants.
Siemens: AI demand prediction platform for industrial production planningSee Siemens referenceProject durationSince February 2022
Proof of conceptin a few weeks
Time series predictionfor 100 different products
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VW: Digitization of key production figures with the iProcess appSee VW reference
Less paper, more efficiency: Volkswagen replaces analog processes with the iProcess app. Cloud-native technologies and digital design enable intuitive recording and analysis of key production figures. This increases transparency and overall equipment effectiveness and paves the way for predictive maintenance at the automotive group.
VW: Digitization of key production figures with the iProcess appSee VW referenceProject durationSince January 2021
Team size5 to 10 persons
Fast app developmentthanks to Digital Design
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digikoo GmbH: Apple Vision Pro for city plannersSee digikoo reference
Planning cities smarter: Together with TUM, we developed the 3Digipad for Apple Vision Pro. It visualizes complex energy data in 3D and makes scenarios intuitively tangible. Dynamic building data and KPIs support urban planners in making sustainable decisions.
digikoo GmbH: Apple Vision Pro for city plannersSee digikoo reference4 monthsProject duration
3D map with KPIsDisplay building data dynamicallyEnergy dataImmersive visualization -
BMW Group: Replacement of a production-critical legacy systemSee BMW Group reference
20-year-old system, new digital future. We gradually migrated production software to a flexible architecture. After two years, central plants were running on the new solution - stable, fail-safe and ready for the challenges of tomorrow.
BMW Group: Replacement of a production-critical legacy systemSee BMW Group referenceProject durationMid-2018 to the beginning of 2024
Team size25 employees
Legacy systemreplaced after 20 years
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KUKA: Web interface for a new Human Machine InterfaceSee KUKA reference
Rethinking robotics: KUKA is working with us to develop iiQKA.OS - an operating system with an intuitive web HMI. Using web technologies and scrum methods, we enable flexible customization and simple control. Open collaboration makes robotics more accessible than ever before.
KUKA: Web interface for a new Human Machine InterfaceSee KUKA referenceGoalReplacing the current control software
iiQKA.OSFast and intuitive development
> 11,000 hoursProject work
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STIHL: Control iMOW robotic mower via appRead more
Robot mower redefined: The iMOW from STIHL makes lawn care smarter. Our software expertise combined with STIHL's hardware know-how ensures intuitive app control. The result? A networked device that makes gardening easier - simple, efficient, innovative.
STIHL: Control iMOW robotic mower via appRead moreProject durationsince August 2020
Robot mowerControl via app
Process optimizationwith the customer
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DER Touristik Online: Development and migration of a multi-client capable travel booking platformSee DER Touristik reference
Different brands, one platform: DER Touristik merges several independent websites. We are supporting the migration to the AWS cloud with digital design, microservices and testing. The focus is on performance, SEO and UX - for a seamless digital travel experience.
DER Touristik Online: Development and migration of a multi-client capable travel booking platformSee DER Touristik referenceStandardized platformMulti-client travel portalQuality assuranceEnd-2-End test automationCloud transformationMigration to AWS cloud -
Bayernwerk: Knowledge management via teamsRead more
Experience must not be lost - Bayernwerk digitizes the knowledge of long-standing employees. MaibornWolff designed an intuitive MS Teams app with a clear UX/UI. Close collaboration, lived Scrum values and user-centered development make the app a success. Promoting exchange, optimizing processes - this is how knowledge transfer works today.
Bayernwerk: Knowledge management via teamsRead more6 monthsProject duration
Target:Identify implicit knowledge
Requirements:a user-centered, intuitive and clear UX/UI design
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It's LOS: Building a cloud-based low-code applicationSee Es geht LOS reference
Democracy meets digitalization: For "Es geht LOS!", we developed a low-code app for candidate management in five weeks. Built on AWS, it enables secure draws and efficient user management - for more citizen participation digitally.
It's LOS: Building a cloud-based low-code applicationSee Es geht LOS referenceStrengthening democracythrough random selection
Recruit candidatesfor citizens' councils via app
In 5 monthsfrom concept to prototype with low code
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Monitoring alarms in industrial plantsSee reference
Safety in industrial plants requires a real-time overview. We developed a live monitoring platform that networks measuring devices and collects data via Azure IoT and Kubernetes. A scalable MVP was created in just three months: alarms appear in under ten seconds thanks to automated data acquisition via smartphone and Bluetooth.
Monitoring alarms in industrial plantsSee reference3 yearsProject duration
<3 monthsto the MVP
Cloud migrationModernization & relocation -
Planning systems: Optimizing the capacity utilization of pressing plantsSee reference
Maximum capacity utilization, minimum costs: Our customer relies on a central planning system for pressing plants. We have been supporting its further development with .NET Core, GraphQL and PostgreSQL for over ten years. Now the journey is moving to the cloud - for greater scalability, flexibility and efficiency.
Planning systems: Optimizing the capacity utilization of pressing plantsSee reference>10 yearsCustomer support
Technological modernizationCloud-ready platformEfficiency through dataSite-specific cost planning -
Global workforce planning systemSee reference
How do you achieve globally harmonized workforce planning? With a modern web application based on domain-driven design and hexagonal architecture. Event sourcing ensures transparent traceability, while Azure and Quarkus provide stability and scalability. The result: a flexible, future-proof solution.
Global workforce planning systemSee referenceTeam sizeUp to 8 employees
Domain Driven DesignDevelopment approach
Microsoft Azure Cloudallows easy roll-out of new versions
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DER Touristik: Become a digital travel companion in 7 monthsSee DER Touristik reference
Travel information, bookings, support - all in one app. With Flutter, MaibornWolff developed a cross-platform solution for DER Touristik. In just seven months, a stable app was created for iOS and Android that supports multiple brands, languages and countries. This is how customer proximity travels.
DER Touristik: Become a digital travel companion in 7 monthsSee DER Touristik reference7 monthsFrom Kickoff to Go Live
iOS and AndroidDigital travel companion
Whitelabelling solutionUncomplicated integration of additional brands, languages and countries
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Creditreform: Secure proof of identity on the webSee Creditreform reference
Verifying online identities in a forgery-proof manner while maintaining user-friendliness - CrefoTrust makes it possible. Together, we developed a solution that creates trust with blockchain technology and proofs of concept. Personal and company data remain protected, while verifications run smoothly.
Creditreform: Secure proof of identity on the webSee Creditreform reference5 yearsProject duration
Pilot testsbased on several PoCs
Decentralized identityallows tamper-proof storage of identities and company information
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SMA: Development of a Web UI for ennexOS platformSee SMA reference
Optimizing energy flows, reducing costs - we have been developing the Web UI of the ennexOS platform with SMA Solar Technology since 2016. It digitizes energy management processes for over a million users and combines smart solutions for a sustainable energy future.
SMA: Development of a Web UI for ennexOS platformSee SMA referenceProject durationsince 2016
> 1.000Modules and components in ennexOS platform
> 7.000Fuse tests
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Supply chain management: Reducing cloud operating costs by 50 percent with FinOpsTo the FinOps reference
We have made the supply chain management system for an international industrial company more scalable and robust through process modernization, improved monitoring, automation and rightsizing. Targeted optimization of the infrastructure reduced oversizing and unnecessary resources - the platform is more stable.
Supply chain management: Reducing cloud operating costs by 50 percent with FinOpsTo the FinOps referenceLoweringof the cloud operating costs
Fastto the new release
More transparencyand control
Industry-specific solutions for cross-platform app development
Our teams use cross-platform technologies wherever digital processes need to be mobile, efficient, and designed to work across systems. We combine the advantages of technology with our experience to develop customized, practical solutions for a wide range of industries. Here are a few examples from our practice:

Automotive
Connected car application for a premium manufacturer
Tourism
Medical Technology
App for a baby monitor
Automation Technology
Apps for configuring production sensors
Consumer Goods Industry
Diagnostic app for manufacturers of premium household appliances
Tell us what you need help with, and one of our experts will contact you for an initial consultation.
FAQ: Frequently asked questions about cross-platform app development
What is the difference between multiplatform and cross-platform?
Cross-platform refers to the development of an app with a uniform code base for several platforms such as iOS, Android or the web.
In contrast, multi-platform usually describes the parallel use of different technologies for each platform.
If required, we can also assist you with our native development expertise.Which language is used for cross-platform app development?
Frameworks such as Flutter (Dart) or React Native (JavaScript/TypeScript) are used for cross-platform app development. The choice depends on the requirements of your project.
Current guides on the topic of code development
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Vulnerability ManagementCatch vulnerabilities early – 5 steps to successful vulnerability management in projects.
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Code visualisation with CodeCharta
Code as a city map: identify hotspots, plan refactoring, and target specific projects for improvement.
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Hexagonal architectures explained
Clean, Onion, Ports & Adapters – what lies behind hexagonal architectures
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Refactoring
The principles, tools, advantages and pitfalls of refactoring discussed in a nutshell.
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Strangler Fig Pattern
How to successfully modernise your IT while continuing to operate.
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Clean Code
Principles, practice and pitfalls of clean code & why it pays off.
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OpenAI Whisper on the Raspberry Pi 4
Whisper on the Pi? It works – but not everything. Practical insights from Marno Janetzky.
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End-to-end-testing with Cucumber and GherkinSmarter E2E Testing: Gherkin & Cucumber boost structure, clarity, and code quality.