Cross Platform App Development Company

Planning to test the market or quickly create a prototype/MVP? EDE can help you create and swiftly launch your product, and then write additional native modules as your business grows. With the help of Kotlin Multiplatform, we offer our clients a modern alternative to an outdated general cross platform app development approach!

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Shared code.
Fast workflows.
No compromise on quality!

Thanks to Kotlin Multiplatform, we can reuse Kotlin code across Android, iOS, web, desktop, and server-side while retaining the benefits of native programming!

How does it work?


We Write Code in Kotlin

Using shared modules for common functionalities.


We Add Platform-Specific Code

When necessary to cater to each platform’s requirements.


We Compile The code

Into platform-specific binaries for Android, iOS, and web.


We Test The App

On each platform to ensure functionality.


We Deploy The App

To the respective app stores or web servers for users to access.

Kotlin Multiplatform

Cross-platform part in Kotlin

Compose Multiplatform

It allows us to create UIs for different platforms like Android, iOS, and the web using a single codebase. Thus, we can achieve amazing development speeds which maintaining top-notch quality!

Benefits for Your Company

Startups and small businesses with limited budgets.

Cost-efficiency and faster development time

Large organizations with complex requirements.

A single codebase for multiple platforms, streamlined development, reduced maintenance costs.

Tech Companies aiming to deliver consistent UX across different platforms. 

Uniformity while optimizing development efforts.


Best UX,
Great performance,
Full platform capabilities


Reduced development time,
Same code reuse,
Consistent behavior across platforms

Our Stack for cross-platform solutions

Swift UI
Kotlin Multiplatform
Compose Multiplatform

Why Choose Cross Platform App Development?

Speedy time-to-market

Startups are constantly seeking efficient methods to bring their products to market swiftly. Cross platform mobile development has emerged as a compelling solution for achieving quicker workflows.

Ideal for Prototyping and MVPs

Businesses looking to develop MVPs also benefit from cross platform mobile app development. You can test the concept before investing in full-scale native product creation. Plus, it allows for rapid iteration and feedback gathering.

Easy Transition to Native Apps

Once your concept is validated, we can leverage the insights gained from the initial version to create a high-performance, platform-specific one. While sharing business logic and other non-UI code, Kotlin Multiplatform allows us to implement platform-specific UIs for native apps. It ensures a seamless transition without compromising the native look and feel.

Our Cross Platform App Development Services

Ein-des-ein cross-platform app development company empowers businesses with solutions that transcend technical boundaries.

Mobile Applications

Whether it’s consumer-facing applications or enterprise mobility solutions, our cross platform mobile app development services empower businesses to connect with their audience on the go.

MVP and Prototyping

Our cross-platform app development services include the building of MVPs and prototypes, so clients could conduct quick market tests and gather feedback. Our agile approach to MVP and prototyping empowers businesses to validate their concepts and iterate efficiently based on market insights.

Desktop Applications

Whether it’s Windows, macOS, or Linux, we ensure our desktop solutions deliver a consistent UX while capitalizing on the specific strengths of each platform. From productivity tools to enterprise-grade software, our products cater to diverse business requirements.

Enterprise Resource Planning Systems

Leveraging industry-leading tools, we cover all project stages—from design to deployment in production. Our talented team integrates new software seamlessly with existing corporate systems, automating established business processes and unique workflows to future-proof ERP software for long-term effectiveness.

Cross-Platform Technology Solutions

Kotlin Multiplatform and Compose Multiplatform offer us a robust foundation for smarter cross-platform app development, providing numerous advantages!

Why Choose Our Company

Customized Solutions for Diverse Industries

We understand that different industries have unique requirements. We tailor our cross platform application development services to cater to a diverse range of business verticals. Whether it’s healthcare, logistics, or e-commerce, we have the expertise to deliver customized products that meet specific industry demands.

Focus on Future Scalability

Our cross platform app development services focus on future scalability. It enables a seamless transition from cross-platform apps to native ones when the time is right. This strategic approach provides our clients with flexibility and adaptability, so their apps evolve alongside their business needs.

Proven Tech Expertise

Leveraging the power of Kotlin Multiplatform, we offer unparalleled expertise in developing apps that seamlessly run on various OSs:

  • our proficiency in KMP enables us to create robust apps with shared code, resulting in accelerated project cycles
  • by leveraging Compose Multiplatform, we deliver visually stunning and dynamic UIs across different platforms

Our Cross-Platform App Development Process

Project Discovery & Planning

By conducting in-depth market research and analysis, we identify the optimal functionalities that will resonate with your end users. This phase sets the foundation for a strategic and well-informed project plan.

UI/UX Design & Prototyping

Aesthetics and usability are paramount, when it comes to cross-platform mobile app development services. Our dedicated designers craft visually captivating and intuitive interfaces that resonate with the brand identity and engage the audience.

Coding & Testing

EDE developers commence the coding phase, implementing feature-rich functionalities. Continuous testing and QA are integral parts of the whole cycle. Here, we ensure the app performs flawlessly across various OSs while adhering to industry standards.

Deployment & Iterative Enhancements

Upon successful testing, we proceed with the product deployment, meticulously guiding our clients through the launch phase. Post-deployment, our commitment to excellence continues. We monitor feedback and performance, iterating and enhancing the app based on real-world usage data.

Why Our Cross-Platform
Solutions Stand Out

Broader Market Reach

Our solutions enable you to engage a wider audience, thereby enhancing your brand visibility and user accessibility.

Cost-Effectiveness and Time-Efficiency

With the help of Kotlin and Compose multiplatforms, we help businesses mitigate the expenses and time associated with platform-specific development from scratch.

Data Security and Compliance

All our products are engineered with robust security measures. We uphold stringent standards while facilitating compliance with regulatory requirements, safeguarding sensitive information and bolstering trust.

Cross-Platform App Development Tech We Use


React JS
Angular JS




Node JS
Java important
DevOps AWS



Examples of Our Work

Our clients say

Great communication, extremely productive and a genuinely nice group of people to work with. They gave us the advice we needed and made some great recommendations, but also listened very closely to our business goals and the needs of our customers.

Emma Warren-Jones

Co-Founder, Scholarcy
Ein-des-ein helped us with building and launching our B2B website. The team was great to work with, especially in regards to their client focus and their vibrant UI work. We were highly satisfied with the result and would be glad to recommend ein-des-ein to others.

Sandro Matter

Co-Founder at vlot
It was a pleasure to work with Michael and his team. We are happy with the final result which turned to be creative, modern, and accurate. Besides, everything was delivered on time and on budget.

Dmitri Nogin

CEO & Co-founder at Emphy
The team at Ein-des-ein was amazing to work with. Michael was in constant communication with us every step of the way. They created a superb custom design for our website and developed a crucial backend integration. I will tell you, lose your fear of outsourcing overseas. You will be in talented and honest hands with Ein-des-ein.

Christopher Perry

CEO at Energy for a cause
The project result was quite impressive. The start, the progress, and the completion — everything was on a good level. I enjoyed the design, it was very professional! The animation was nice, too.

Thank you, Michael and the Ein-des-ein team.

Aladin Ben

Crypto advisor
The ein-des-ein team is always happy to work on every bit of feedback we give them. It was a great experience! We enjoyed both the process and the final result. Good luck with the future endeavors!

Natalia Walker

Co-Founder & COO at Boataffair
We successfully completed several important steps with the ein-des-ein agency. We've achieved measurable outcomes. We've been pleased with the quality of the deliverables. Everything was great from the initial design specifications to the final app version. We are expecting great engagement and conversions after the release. We look forward to developing more successful projects in the future.

Veronica Akhunova

Co-Founder, Sensters
Workflow was effective. We set up a joint Slack server and had regular review meetings. EDE provided a roadmap early on and then informed us on status and deviations.

Martin Liebrich

CTO, Staxe

Articles in our blog related to cross-platform application development


Is cross-platform the best choice for mobile app development?

Cross-platform app development services may be the best choice in certain scenarios. Reputable cross platform app development companies can tell you that the decision depends on factors such as UX goals, performance requirements, and the long-term scalability.
However, there are more flexible and convenient options available. For instance, by leveraging multiplatform tools, tech professionals seamlessly integrate platform-specific code alongside shared business logic, ensuring a consistent UX across diverse platforms.

What language is used for cross-platform apps?

Languages vary here. But, frameworks like KMP often utilize languages such as Kotlin and Dart to enable the creation of apps that run on multiple platforms with a shared codebase.

What is multi platform programming?

It is the practice of writing code that can be executed on different OSs without major modifications. This approach aims to maximize code reuse and minimize platform-specific efforts. It is a more flexible option compared to standard cross platform mobile development services.

What is the cost of cross-platform mobile app development?

Any cross platform mobile app development company will confirm the total cost varies depending on:
  • the overall complexity
  • specific requirements
  • chosen features etc.
Consult with a reputable cross platform mobile application development company to get an estimate for your case.

How long does cross platform app development take?

When it comes to cross platform application development services, timelines may vary. Simple ones with basic functionality may take anywhere from 2 to 6 months to build. Moderate complexity ones may require 4 to 9 months. Highly intricate or feature-rich products could take 9 months to over a year to complete. Plus, it also matters what cross platform application development service provider you select. Additionally, factors such as iterations or deployment influence the overall timeline. Discuss your case with a chosen cross platform application development company to set approx. timelines.

Can you provide examples of relevant projects you have recently completed?

Absolutely! For instance, we embarked on a journey to create a complex ERP system. We began by integrating a robust authentication functionality. It allowed for secure access to the ERP features. Additionally, we managed to implement a comprehensive dashboard. It provided real-time insights into various aspects of daily operations.
We successfully integrated a sophisticated inventory management module. It enabled seamless tracking of stock levels, procurement, and warehousing activities. An advanced CRM system helped in facilitating efficient customer interactions, lead management, and sales pipeline tracking.

The system also featured a powerful financial management module. It allowed for precise accounting, budgeting, and comprehensive financial reporting. We also implemented a versatile HR module. It encompassed employee data management, payroll processing, and performance evaluations.

An intelligent analytics functionality provided in-depth insights through customizable reports, data visualization instruments, and predictive analytics capabilities. In addition, EDE designed and implemented a communication module, incorporating features such as internal messaging, task assignments, and collaboration tools to enhance team productivity.

Ein-des-ein also undertook the ambitious task of creating a complex medical application for a chain of private clinics.  Firstly, we incorporated a comprehensive patient management feature. It allowed clinics to efficiently store and access patient records, medical history, and treatment plans within the system.

We also integrated a secure communication module. Healthcare professionals could communicate seamlessly within the system. It ensured the confidentiality and integrity of sensitive patient information.

One of the critical features we implemented was real-time appointment scheduling. Patients could book appointments with their healthcare providers conveniently. Plus, clinics could manage their schedules effectively.
A robust telemedicine feature facilitated remote consultations, so doctors could conduct virtual appointments.

We also crafted a complex product for a logistics corporation. We began by integrating a powerful real-time tracking feature. It enabled the monitoring of shipments, delivery routes, and logistical operations. A comprehensive inventory management module facilitated tracking of stock levels, warehouse operations, and procurement activities.

Furthermore, EDE added a robust scheduling and route optimization component. It allowed for the efficient resources allocation and delivery routes optimization. An intuitive driver management module accelerated the assignment of tasks, performance tracking, and communication between drivers and the office.

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