According to Statista, one-third of mobile developers use cross platform app development frameworks for creating mobile applications. The rise in popularity of cross-platform mobile app development reflects a significant change in how mobile applications are built since their early days.
Today, there are thousands of cross-platform app development service providers in the United States alone. Many of them offer both native and cross platform mobile app development services.
In this article, we’ll list the top five cross-platform app development companies in the USA. It will also address common questions like what cross-platform app development is, the differences between native and cross-platform apps, and why cross-platform app development is the future.
What is cross platform app development?
Cross-platform app development creates software applications that can run on multiple operating systems using a single codebase. It means developers just have to write their code in one programming language and it can run on any platform, such as Android, iOS, web, or desktop.
The opposite of cross-platform development is native app development, where developers have to write separate code for each platform in their respective languages, like Swift for iOS and Kotlin for Android.
There are several cross-platform app development frameworks that support different platforms. Each of these platforms uses a specific programming language and set of tools to create cross-platform apps, such as:
| Framework | Language |
| Flutter | Dart |
| React Native | JavaScript |
| Xamarin | C#, .NET |
| Ionic | HTML, CSS, JavaScript |
Cross-platform development is mainly used for creating mobile applications. Flutter, Xamarin, and React Native were initially built for cross-platform mobile app development.
However, that is not to say cross-platform app development for web and desktop is uncommon or not important.
Best cross-platform app development service providers in the U.S
The United States is an ideal place to meet your cross-platform app development needs. It hosts a diverse range of cross-platform app development service providers that bring unique offerings.
Here are the top five US-based cross-platform app development companies that focus on high-quality applications with user-centric design, innovation, and scalability.
1. Xavor Corporation
Location: Irvine, California
Employees: 50–200
Xavor is a technology company based right in the heart of Silicon Valley. Founded in 1995, we specialize in cross-platform app development tailored to our clients’ specific goals. Our developers utilize the top cross-platform development frameworks to create immersive digital experiences that grow your business and increase engagement for your app.
From cross-platform desktop app development to cross-platform mobile app development, we are your all-round partner to develop impactful cross-platform applications for any system or platform.
Our highlights
- Diverse cross-platform development experience across industries, including HealthTech, finance, and manufacturing.
- We incorporate the latest AI technologies in our development workflows to create mobile apps for the future.
- Strong focus on effective communication with clients and a collaborative culture for proactive problem-solving.
- Our offshore offices in China and Pakistan host global teams of talented experts that offer world-class development skills at a competitive price.
Our services
- Cross-platform app development for mobile, web, and desktop
- Native mobile app development
- Custom mobile app design
- Ecommerce mobile app development
- IoT integration and wearable development
Contact information
- Website: https://www.xavor.com/
- Address: 2211 Michelson Drive, Suite 900, Irvine, California 92612
- Phone: + 1949-264-1472
- Email: [email protected]
- LinkedIn: https://www.linkedin.com/company/xavor
2. Closeloop Technologies
Location: Mountain View, California
Employees: 100–250
Closeloop is a custom software development in California that is renowned for its deep expertise in React Native and Flutter. Their cross-platform app development teams ensure that your app looks and performs consistently across Android and iOS platforms.
The cross-platform app development company embeds its development services within a broader technical ecosystem, including DevOps and cloud-native support to complement its mobile offerings.
Highlights
- 150+ expert consultants with demonstrated experience and client trust
- A global presence with five offices and strong satisfaction ratings
Services
- Cross-platform app development consulting and strategy
- Custom cross-platform app development
- UI/UX design
- Migration services for existing native apps
3. RipenApps Technologies
Location: Ontario, California, USA
Employees: 250–500
RipenApps Technologies is an award-winning cross-platform app development company in USA, known for delivering high-performance mobile apps using React Native, Flutter, and other modern frameworks. Their cross-platform teams ensure apps are visually engaging, seamless, and fully optimized across both Android and iOS platforms.
The company seamlessly integrates its mobile development services within a broader ecosystem that includes cloud solutions, DevOps, and AI-powered enhancements. Thus, ensuring scalable, future-ready apps that align with business goals.
Highlights
- 600+ successful projects delivered globally
- A strong presence in major USA tech hubs for fast collaboration
- High client satisfaction and repeat engagement
Services
- Cross-platform app development consulting and strategy
- Custom mobile app development
- UI/UX design for mobile platforms
- Migration and modernization of existing native apps
4. Space-O Technologies
Location: Tempe, AZ (USA)
Employees: 140+
Space-O Technologies is an ISO-certified cross-platform app development company with 15+ years of experience delivering scalable mobile applications for startups, SMEs, and enterprises. With 1,200+ clients globally and a 97% client retention rate, Space-O specializes in building high-performance cross-platform apps using Flutter, React Native, and Xamarin.
The company has delivered 4,400+ apps across diverse industries, including healthcare, fintech, logistics, and on-demand services. Space-O’s cross-platform development approach combines modern frameworks with cloud-native architecture on AWS, Azure, and GCP, ensuring applications are scalable, secure, and optimized for performance.
Highlights
- ISO 9001 and ISO 27001 certified for quality management and information security
- Advanced AI/ML integration capabilities for intelligent features like personalized recommendations and predictive analytics
- Strong focus on enterprise-grade scalability with cloud-native development practices
- Notable clients include Nike, McAfee, and Saint-Gobain
Services
- Cross-platform mobile app development
- Native mobile app development
- Custom software development
- UI/UX design for mobile platforms
- Cloud integration and deployment
5. Simpalm
Location: Illinois, Maryland
Employees: 50-100
Simpalm is among the leading cross-platform app development companies in the US, backed by robust modern-day tools and technologies. The company has a team of skilled designers and developers to ensure your cross-platform app doesn’t just look visually appealing but also guarantees high performance and responsiveness.
Simpalm uses React Native, .NET MAUI, and Flutter as its core frameworks for building cross-platform apps. From app design and development to migration and post-launch support, Simpalm extends its comprehensive cross-platform app development solutions at your service.
Highlights
- Delivering high-performance cross-platform apps for more than 15 years.
- Worked with 100+ top clients from the US and other parts of the world.
- Deployed more than 200 successful cross-platform app development projects.
Services
- Cross-platform App UI/UX Design
- Custom App Development
- Cross-platform App Migration
- API Integrations
- Post-Launch Support and Maintenance
6. Master of Code Global
Location: Seattle, United States (with global delivery centers)
Employees: 201–500
With over 20 years of experience and 1,000+ successful projects delivered, Master of Code Global is a trusted leader in cross-platform app development and AI-powered digital solutions.
Furthermore, Master of Code Global partners with global brands such as Tom Ford, Electronic Arts, T-Mobile, Burberry, and the Golden State Warriors to build scalable, high-performance apps that drive measurable business results.
Highlights
- Cost-efficient with shared code, reducing development time and costs
- Dedicated project teams with specialists assigned to each client
- Full-cycle development from PoC or MVP to launch and support
- ISO 27001 certified for enterprise-grade security
Services
- Cross-platform app development for mobile, web, and desktop
- AI consulting, development, and integration
- SaaS and CRM development
- Blockchain and custom software product development
7. Appy Pie
Location: Virginia, USA
Employees: 50-100
Appy Pie’s App Builder is a no-code cross-platform app development platform that enables businesses and entrepreneurs to build mobile apps for Android and iOS without writing code. It is widely used by startups, small businesses, and enterprises looking to launch functional cross-platform apps quickly while maintaining consistent performance across devices.
Unlike traditional development firms, Appy Pie focuses on simplifying app creation through a visual interface, prebuilt modules, and automated workflows. Its platform supports rapid deployment, ongoing updates, and scalable app management, making it a practical choice for organizations that prioritize speed, flexibility, and cost efficiency.
Highlights
- Millions of apps created globally using its no-code platform
- Strong adoption among small businesses, startups, and non-technical teams
- End-to-end app lifecycle support from creation to publishing and updates
Services
- Cross-platform app development using a no-code visual builder
- App design and customization with ready-made templates
- Integration of features like push notifications, payments, and analytics
- App publishing, maintenance, and ongoing updates for Android and iOS
What are the main differences between native and cross-platform app development?
Every developer and business has to choose between native and cross-platform app development for their app. Both approaches are suited for different needs and requirements.
Here is a brief comparison to show their differences.
1. Codebase
Codebase is the most fundamental difference between the two approaches. Native development requires creating a separate codebase for each operating system, which means double the effort in terms of development, debugging, and maintenance of the app.
In contrast, cross-platform app development allows developers to write a single codebase that runs on multiple platforms. It does that by abstracting platform-specific code and sharing components that render native-like behaviour.
2. Performance
Because native apps are built specifically for a given platform, they utilize the device’s hardware and OS-level features to the fullest. This makes them high-performing with faster load times and better handling of graphics and other assets.
Cross-platform applications also offer near-native performance in most cases. Modern frameworks like Flutter are especially ahead in this regard. However, certain complexities and platform-specific challenges can hinder the performance of cross-platform apps.
3. Development time and cost
Cross-platform application development is significantly faster and cheaper. A single development team can target multiple platforms at once, which reduces time to market and overall project cost. Maintenance is also easier, as updates can be pushed to all platforms simultaneously.
On the other hand, native development is more resource-intensive. Since you’re managing multiple codebases, you need specialized teams or developers proficient in each platform’s tools and languages. This leads to higher costs and longer release cycles.
4. Flexibility and platform integration
Native apps have direct access to all platform-specific APIs, which makes them suited for projects that require deep integrations with device features, such as:
- Camera tools
- Biometric authentication
- Bluetooth
Cross-platform frameworks rely on prebuilt plugins or third-party libraries to bridge the gap with native APIs. This approach covers only common use cases, and developers have to create plugins themselves for specific functionality features.
5. User experience
In user experience, both native and cross-platform apps are quite equal. Native development excels in delivering pixel-perfect user interfaces tailored to platform-specific design guidelines.
Cross-platform frameworks like Flutter replicate this design consistency through customizable widgets that mimic native UI components.
Why is cross-platform app development the future?
Cross-platform app development is the logical choice to meet the growing demand for fast, scalable mobile solutions. It helps businesses reduce costs while delivering a consistent user experience across devices.
Cross-platform apps are faster to build, easier to maintain, and more cost-effective than traditional native apps. The future of this domain is promising, especially with these innovations on the horizon:
- AI-powered mobile app development
- Low-code and no-code platforms
- IoT integration
- AR/VR support
These technologies will power the next wave of cross-platform app development frameworks. Major players like Google, Facebook, and Tesla are already on board, signalling that this trend will determine the future of mobile app development.
Conclusion
Cross-platform app development has proven its value where it counts. It offers speed, consistency, and cost efficiency, which helps businesses deliver faster and reach wider audiences with half the effort required in native app development.
The United States is home to top-quality cross-platform app development services providers that offer flexible and efficient solutions to meet your demands across devices.
These five app development companies in the USA stand out as the premium service providers in the country.
Partner with Xavor to turn your app idea into a high-quality, multi-platform solution. Our developers are experts in frameworks like Flutter, React Native, and Xamarin to build modern apps.
Drop us a line at [email protected] to start building your app with us today.