Cross-Platform Design & Development Services
Onix is your trusted cross-platform mobile app development company that professionally combines cutting-edge technologies with industry best practices to build high-performance, feature-rich apps that work seamlessly across multiple platforms.
Whether you need to build a brand-new app from scratch or enhance an existing one, we have the technical proficiency and creativity to bring your vision to life.
Let's create an app that shines on every platform!
Mobile Android/
iOS apps
Tablet Android/
iOS apps
TV apps for Apple
Android TV
Desktop &
Web Apps
Don't limit your app's potential! Unleash the power of cross-platform development and deliver a seamless user experience across multiple operating systems.
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Years of experience in
software development
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Successfully delivered
projects
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Countries represented
by clients
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Successful cross-platform
app releases every year
“I cannot speak highly enough of the Onix entire team! They work incredibly hard, are always on time & ahead of schedule, and have been great at communication. I am so thankful I chose Onix Team to help me do that.”
"Working with Onix-Systems has been an exceptional experience for our company. We were not only focused on having a positive user experience but also wanted to ensure commercial viability and technical capabilities. They built our solutions efficiently and effectively, delivering impressive speed without compromising quality.”
“It is a pleasure working with Onix. We have been growing as a team, and everyone was committed to success right from the beginning. Onix went the extra mile to deliver in time, and their approach to building on a single codebase has proven to be excellent.”
“We have worked with Onix for over 5 years, they have been instrumental in developing a digital infrastructure that is helping to build a new model of healthcare. The team is very responsive to our needs as an early-stage company and we would not have been able to achieve our early success without them.”
“They are very organized and diligent in the entire process, and communication with them was seamless. I’m so pleased with the work they did that I plan to continue working with Onix as my company continues to grow.”
"We are impressed with their professionalism and transparency in their work."
With our cross-platform development services, you'll get
Cost-effective solutions
We build custom cross-platform mobile apps that work seamlessly across multiple platforms, saving you time and development costs.
Reach a wider audience
By developing cross-platform apps, your application will be compatible with both iOS and Android devices, maximizing your market potential.
Consistent user experience
We ensure a consistent experience across different platforms, maintaining brand identity and providing a cohesive user interface.
Faster time to market
Utilizing reusable code components allows for faster deployment and quickly getting your app to the market.
Easy maintenance and updates
With a unified codebase, we easily roll out new features and enhancements across all platforms simultaneously.
Wide range of ready-made solutions
Cross-platform development offers an extensive library of pre-built components and modules that accelerate the development process, saving you time and resources.
Cross-platform development services we offer
Our cross-platform design and development services empower businesses to create innovative and high-performance applications that can reach a broad audience across multiple platforms.
Whether you need to develop a new cross-platform app or optimize an existing one, our team ensures consistent performance, user-friendly interfaces, and an efficient codebase.
Ready to conquer multiple platforms with your app? Reach more users, maximize efficiency, and unlock endless possibilities for your app!
We transform your app idea into a captivating and innovative product that users can't wait to download!
Onix is a cross-platform design company that specializes in creating user-centric designs that are optimized for various platforms, including iOS, Android, and web. We focus on creating visually appealing interfaces, easy navigation, and seamless interactions to enhance user engagement and satisfaction.
Seamless and intuitive user experience across different devices.
Consistent visual elements, colors, and typography across platforms reinforce your brand image.
Design systems that provide a consistent and scalable framework for your cross-platform applications, enabling easier maintenance and future updates.
[ Industries we serve ]
We’re a highly competent cross platform mobile app development company that delivers next-gen solutions for various industry domains:
Solutions we provide
Mobile Android/
iOS apps
Tablet Android/
iOS apps
PWAs
TV apps for Apple
Android TV
Desktop Apps
Web Apps
See other related projects
Explore our featured projects and see how we've helped businesses achieve their goals with our cross-platform development solutions.
Switzerland
Manufacturing
360° Shower is an end-to-end service
to simplify the shower installation
process
Digital ecosystem for sanitary professionals
360° Shower is an end-to-end service to simplify the shower installation process
Services provided:
Onix created multi-platform apps, utilizing a single codebase, ensuring cross-platform compatibility, with robust error-tracking & monitoring solutions
USA
Sports & Fitness
JSA is a platform that offers
personalized training and nutrition
services
Online sports & fitness platform
JSA is a platform that offers personalized training and nutrition services
Services provided:
The client came to us with an already existing project and asked to help implement specific features, improve existing ones, and fix bugs
USA
Social Media
The app lets users share pictures and
connect with photographers worldwide
Peer-to-peer learning app to empower photographers
The app lets users share pictures and connect with photographers worldwide
Services provided:
We developed a learning app with a payment gateway, live video streaming, implemented image recognition, and ensured security with AWS infrastructure
We stay up-to-date with the latest technologies and industry trends to provide you with cutting-edge solutions that stay ahead of the competition.
0%
compromising on efficiency or quality
100%
apps that look, feel, and perform like native
5/5
end-user satisfaction rating
What is your cross-platform app idea?
How we build a cross-platform development process
From conceptualization to deployment, our team will guide you through the entire development process, ensuring seamless integration, optimal performance, and a consistent user experience across iOS, Android, and web platforms.
- 01
Requirement analysis
We start by understanding your business goals, target audience, and project requirements. Our team collaborates closely with you to gather all the necessary information and define the scope of the project.
- 02
Technology selection
We rely on the availability of the necessary SDK for the platform and requirements for using native modules primarily. Based on the project requirements, we select the most suitable cross-platform framework, such as React Native or Flutter. We consider factors like performance, scalability, and the specific needs of your application.
- 03
UI/UX design
Our talented designers create intuitive and visually appealing user interfaces that align with your brand identity and provide an exceptional user experience. We focus on creating designs that are consistent across platforms and devices.
- 04
Development and testing
Our experienced developers leverage the chosen cross-platform framework to write clean and reusable code. We follow industry best practices and perform rigorous testing at each stage to ensure the application functions flawlessly on various platforms.
- 05
Deployment and launch
We strive to ensure simultaneous release everywhere. Once the development and testing phases are complete, we assist with deploying your cross-platform application to the respective app stores. We ensure a smooth and successful launch, handling all the necessary configurations and preparations.
- 06
Maintenance and support
We provide ongoing maintenance and support services to keep your cross-platform application up-to-date, secure, and performing optimally. Our team is readily available to address any issues, implement updates, and provide technical assistance as needed.
Our cross-platform development process is driven by a focus on quality, efficiency, and customer satisfaction!
Onix Engagement Models
Choose a model that best suits you
Dedicated team
Dedicated software development teams refer to hiring a fully dedicated set of developers assigned exclusively to your business initiatives for the long term. Dedicated teams ensure faster turnaround times and better communication between you and the development team.
Staff augmentation
With this option, clients can hire additional expert personnel for short-term projects or during peak periods of activity to supplement their internal teams. Dedicated Onix specialists will join existing teams to ensure deadlines and requirements are met while also providing expertise in specific areas.
Break free from platform limitations! We help you bridge the gap between iOS and Android, enhance performance, and create a consistent user experience on multiple platforms.
Why choose Onix for cross-platform development services
Expertise
Expertise
We have deep knowledge and experience delivering numerous projects across different industries, showcasing our expertise in creating robust and scalable cross-platform applications.
Custom solutions
Custom solutions
We understand that every business has unique goals. That's why we offer tailored cross-platform development services to meet your specific needs. Our solutions are designed to align with your business goals and deliver the desired outcomes.
Time and cost efficiency
Time and cost efficiency
With a single codebase that can be shared across multiple platforms, we can streamline the development process and ensure faster time-to-market for your application.
Transparent communication
Transparent communication
Our team keeps you informed about the progress of your project, actively seeks your feedback, and addresses any concerns or questions you may have.
Brands we have worked with
Technologies we work with but not limited to
Our skilled developers harness the power of innovative technologies and frameworks to create seamless, high-performance applications that work flawlessly across multiple platforms.
![Mobile App Development Cost Breakdown [2025 Update]](/_next/image?url=https%3A%2F%2Fadmin.onix-systems.com%2Fuploads%2FUPD_How_Much_Does_Mobile_App_Development_Cost_bb8cebbfae.webp&w=3840&q=100)
Tell us about your product idea and let the magic unfold.
FAQ
Cross-platform application development services offer several advantages, including:
Cost-effectiveness. Developing a single codebase for multiple platforms reduces development and maintenance costs.
Time-saving. With cross-platform development frameworks, developers can write code once and deploy it across different platforms, saving time and effort.
Wider audience reach. By targeting multiple platforms, businesses can reach a larger user base and maximize their app's potential.
Consistent user experience. Cross-platform development ensures a consistent user interface and experience across different devices and platforms.
Yes, we can integrate custom features and functionalities into cross-platform apps based on your specific requirements. We are an experienced cross-platform app development company that has expertise in working with various APIs, third-party integrations, and backend systems to deliver tailored solutions that meet your business needs.
Yes, cross-platform apps developed using modern frameworks like React Native and Flutter can deliver native-like performance. These frameworks leverage native components and optimize performance, resulting in smooth and responsive user experiences.
Sure! We offer cross-platform design services to help businesses create visually appealing and user-friendly applications that work seamlessly across different platforms and devices. As a cross-platform design company, we focus on creating visually appealing interfaces, easy navigation, and seamless interactions to enhance user engagement and satisfaction.
We follow rigorous quality assurance processes and conduct thorough testing to ensure the functionality, performance, and compatibility of cross-platform apps across different devices and platforms. Onix is an experienced cross-platform app development company that performs comprehensive testing, including functional testing, usability testing, performance testing, and compatibility testing.
Yes, our cross-platform mobile app development services include ongoing support and maintenance to ensure your app's smooth operation and address any issues or updates that may arise. We provide timely updates, bug fixes, and enhancements to keep your app up-to-date and compatible with the latest platform changes.
The development timeline for a cross-platform app depends on various factors, including the complexity of the app, the number of features, and the integration requirements. We work closely with our clients to define project timelines and milestones, ensuring efficient development and timely delivery.
Getting started is easy! Simply contact our team and we will be happy to discuss your project requirements, provide comprehensive consultation, and guide you through the cross-platform app development process.