Top Cross-platform app development companies in the US

Top 8 Cross-platform app development companies in the US in 2024

27 Dec 2023

Have you ever thought about developing an app for your business or for personal use? Nowadays, all you need is a mobile app to reach your target audience and increase your brand’s visibility. But developing an app isn’t easy, especially if you want it to work on multiple platforms. This is where cross-platform app development companies come into play. Cross-platform apps, as the name suggests, work seamlessly on all mobile operating systems.

These companies specialize in developing apps that work smoothly on multiple platforms, including iOS and Android.

 In this article, we’ll introduce you to the top 5 cross-platform app development companies in the US in 2024. So, if you want to develop an app, stay tuned to learn more about the best companies to work with!

What is Cross-Platform Development?


Cross-platform development is a development process that allows applications to run on multiple platforms, such as iOS, Android, Windows, and macOS, using a single code base.

This means that developers only need to write the code once, instead of developing separate apps for each platform and deploying them on different operating systems.

Cross-platform development has become increasingly popular in recent years, especially with the advent of mobile devices and the need for businesses to reach a wider audience.

Significance of Cross-Platform Development

Cross-platform app development is important for several reasons:

  1. Reach a wider audience: cross-platform app development means that your app can be used by users on different devices, operating systems, and platforms. This allows you to reach a wider audience and increase the visibility of your brand or product.
  1. Cost-effectiveness: cross-platform development can save time and costs associated with developing separate apps for different platforms. Developers can write the code once and deploy it on different platforms, which saves time and resources.
  1. Consistent user experience: with cross-platform development, developers can ensure a consistent user experience across different platforms. This means that users have the same experience regardless of their device or operating system.
  1. Faster time to market: developing a cross-platform app can be faster than developing separate apps for different platforms. This means that companies can market their app faster and earn revenue sooner.
  1. Maintenance: maintaining a single codebase is easier and less expensive than maintaining separate codebases for different platforms. This can also reduce the time and resources required to release updates and fix bugs.

Having learned the significant use cases of cross-platform apps, let us look further into the best cross-platform app development companies below. 

Top 5 Cross-platform app development companies in the US

#1 Nintriva

Nintriva, a leading Cross-platform app development company

Nintriva offers sustainable and reliable IT solutions tailored to the individual needs of its customers. This means that the company works closely with each customer to understand their needs, challenges, and goals, and then develops solutions that meet those needs in a cost-effective and efficient manner.

The company has extensive experience working with clients in a variety of industries and sectors. This diverse experience provides the company with valuable insight and knowledge across different business sectors, enabling it to provide its clients with customized solutions that are relevant and effective.

The company uses cutting-edge technologies and innovative tools to develop best-in-class solutions that help clients achieve their goals.

Its solutions are designed to help customers stand out in a competitive market through unique and differentiated value propositions.

Whether developing a new product, optimizing a process, or improving the customer experience, Nintriva works closely with its customers to ensure they achieve the best possible results.

  • Case Study- Toffee Ride

Nintriva, a cross-platform app development company, collaborated with Toffee Ride to create an innovative learning platform for primary school children using Flutter technology. 

Toffee Ride, developed by a leading cross-platform app development company-Nintriva

The platform consists of over 1,100 engaging lessons and 8,000 interactive activities specifically designed to promote self-learning and enhance the educational experience.

The Nintriva team engaged in conversations with Toffee Ride’s founding members and curriculum designers to better understand the needs and preferences of elementary school children. This allowed them to design interfaces that were engaging and effective for students.

The team conducted thorough research into the education industry and implemented creative ideas based on regular customer feedback. The platform features fun and interactive exercises, custom-designed pedagogy, and regular updates to improve performance and stability.

The collaboration between Nintriva and Toffee Ride resulted in a smart learning platform that provides elementary school children with an enjoyable and effective learning experience. The use of Flutter technology enabled seamless development and integration of the platform’s features.

#2 iTechArt Group

Homepage of iTechArt, a leading Cross-platform app development company

iTechArt is a software development company that specializes in creating custom solutions for startups and technology companies. They offer dedicated engineering teams that help clients build scalable products that meet their specific needs.

 ITechArt’s services are focused on delivering high-quality products that users value, and they work closely with their clients to ensure they meet their expectations. Whether you’re a startup supported by VC or a fast-growing technology company, iTechArt provides the expertise you need to develop your software.

  • Case Study- ClassPass

iTechArt has worked with ClassPass to develop feature-rich iOS and Android solutions for the leading fitness membership platform.

ClassPass provides users with credits to book classes and visits to the gym, beauty and spa appointments, and on-demand workout classes.

ClassPass, developed by leading cross-platform app development company- iTechArt

iTechArt worked closely with ClassPass to enhance the app and create a venue portal and admin panel to enable effective user and studio management. The team ensured that the app met ClassPass’ ambitious goal of bringing the world’s best workouts together on one platform.

Built with Angular and other technologies, the app’s features allow users to easily book classes and appointments and track their fitness progress. The collaboration between iTechArt and ClassPass resulted in a successful app that has made ClassPass a leading platform for fitness memberships.

Related Blog: List of Top Angular Development Companies for Startups

#3 Deviniti

 Homepage for Deviniti, a lead Cross-platform app development company

Devinti offers its customers customized solutions based on their expectations. The company is a certified Atlassian partner and has experience in using and implementing DevOps tools as well as work and team management systems. Their solutions aim to satisfy customers and change the world.

They provide business analytics to help clients make thoughtful decisions and offer perfectly aligned solutions based on their ideas. The company also provides software implementation, maintenance, and support assistance so that clients can gain a competitive advantage without having to worry about these technical aspects of running a business.

  • Case Study- CA24 Mobile
CA24 Mobile, developed by leading cross-platform app development company-Deviniti

Deviniti worked with Credit Agricole Bank Polska to launch an innovative mobile banking application that addresses efficiency issues in allocating and prioritizing customer cases. The previous mobile application was outdated and not in line with market trends.

The new solution, CA24 Mobile, provides mobile banking services for retail customers and SOHO and meets security, compliance, technology, and user expectations.

The usability of the app was improved by working with specialists from UX, resulting in a more intuitive and user-friendly interface.

The app also offers personalized products and services, as well as discounts to encourage users to use the platform. The use of Flutter technology enabled seamless development and integration of features, resulting in a high-quality final product that meets market requirements.

#4 Specno

Homepage of Specno- a top Cross-Platform App Development Company

As a cross-development platform company, it provides services to validate, design and build native mobile and web applications for businesses to achieve growth and meet their goals. The company attracts and trains talented professionals to support clients throughout the technical development process.

 The team looks at each project as if it were its own, ensuring that the client’s passions are reflected in the final product. The company has a history of successful partnerships with enterprises and startups around the world that have enabled it to develop high-quality digital products. This experience enables the company to accelerate the success of its customers’ ideas.

  • Case Study- FinMeUp
FinMeUp, developed by a leading cross-platform app development company- Specno

Specno partnered with FinMeUp, a fintech startup, to create a financial education platform that offers curated content on stock picks, cryptocurrencies, financial literacy, and investment news. The goal of the platform is to provide users with valuable resources and knowledge to help them achieve financial independence.

FinMeUp has a dedicated team of vetted financial mentors and industry experts who are passionate about providing the community with valuable and well-researched content.

The platform aims to make financial knowledge more accessible to the public by providing actionable information to end users.

Overall, the collaboration between Specno and FinMeUp has resulted in a financial education platform that enables users to take control of their finances and work towards financial freedom.

#5 Somnio Software

Somnio Software, a top Cross-platform app development company

Somnio Software focuses on creating high-quality mobile and web applications using Flutter technology. The company aims to help its customers grow their business by turning their ideas into best-in-class products.

The company offers a full development lifecycle, from strategy and design to development and delivery.

By working closely with its customers, Somnio Software can help them achieve their goals and lead the way in their industry. The company aims to be a trusted software development partner for its customers, providing reliable and high-quality solutions throughout the entire process.

  • Case Study- Jaac

Jaac, developed by Somio Software, has successfully addressed the challenges of the restaurant industry and improved the overall restaurant experience.

Jaac, developed by a leading cross-platform app development company- Somnio Software

Somnio Software used Flutter for seamless app development and integration, resulting in a high-quality end product.

The first app, Jaac for Guests, simplifies the dining experience by allowing customers to view the menu, change the language, select dishes, make special requests, select payment methods, and request assistance – all through the app.

The second app, Jaac for Restaurants, is designed for staff to manage tables, orders, and other aspects of restaurant operations. The app offers a number of customization options that allow restaurants to tailor it to their specific needs.

Related Blog: Top 10 Flutter App Development Companies in 2023

#6 Intellectsoft

Intellectsoft, a top Cross-platform app development company

Intellectsoft stands out for its innovative cross-platform app development services. They specialize in creating custom software solutions across various industries, including healthcare and finance. Intellectsoft is known for:

  • Leveraging cutting-edge technologies like AI and IoT.
  • Delivering high-quality cross-platform applications focusing on user experience and scalability.
  • Working with Fortune 500 companies on diverse and innovative projects.
  • Case Study- EUROSTAR
Intellectsoft  , developed by leading cross-platform app development company-Eurostar

Intellectsoft, a leading software development company, collaborated with Eurostar, the high-speed train service linking London to mainland Europe, to automate its business-critical processes and enhance customer service through a web and mobile application.

Eurostar needed to manage over 10.5 million annual passengers and 8,000 daily website transactions. They required an app for journey reporting, data collection, and real-time travel updates.

Intellectsoft developed Eurostar iTM, a cloud solution for web and iOS, enhancing reservation management, reporting, and internal communication. 

Key features included:

  • A comprehensive tool for train managers to handle journey issues and customer requests.
  • Data tracking for end-of-journey reports, including passenger counts and real-time schedules.

Eurostar iTM received positive feedback, improving productivity and reporting accuracy. This success established Intellectsoft as Eurostar’s go-to development partner, leading to further projects like the EMOS ticketing app, which improved train capacity utilization.

This collaboration highlights Intellectsoft’s role in revolutionizing Eurostar’s operations, showcasing the impact of customized software solutions in the transportation industry.

#7 WillowTree, Inc.  

WillowTree, Inc, a top Cross-platform app development company

WillowTree, Inc. is a prominent digital product agency known for its exceptional mobile app and web development services. Founded in 2007, the company has rapidly grown to become a leader in the tech industry, particularly in the realm of cross-platform and native app development.

-Case Study- Brightline

WillowTree , developed by leading cross-platform app development company-Brightline

WillowTree collaborated with Brightline, Florida’s premier high-speed rail service, to upgrade their digital interfaces, matching the luxury of their train services. Brightline struggled with disjointed systems and inconsistent digital interactions.

The partnership focused on:

  • Revamping the website for a smoother user experience.
  • Developing user-centric iOS and Android apps.
  • Installing interactive kiosks and digital signage.
  • Implementing an Adobe Experience Cloud-powered marketing engine.

This transformation led to a seamless digital experience for Brightline’s passengers, mirroring the quality of their rail services and showcasing WillowTree’s expertise in elevating transportation customer experiences.

#8 Zco Corporation

WillowTree, Inc, a top Cross-platform app development company

Zco Corporation is a well-established and respected player in the software development industry, particularly known for its expertise in custom software and mobile app development. 

Founded in the late 1980s, Zco has decades of experience in creating robust digital solutions for a diverse range of clients, from startups to Fortune 500 companies.


Zco Corporation, developed by leading cross-platform app development company-INVISAWEAR

Zco Corporation collaborated with invisaWear to create smart safety accessories, integrating discrete emergency contact features into everyday jewelry items.

The project involved developing iOS and Android apps with reliable Bluetooth connectivity to the wearable devices. 

The final products offer quick emergency response capabilities and are operational in over 250 countries, enhancing personal safety with a year-long battery life and a 30-foot operational range.

This development showcases Zco Corporation’s expertise in combining safety with technology, providing users with a discreet and efficient way to ensure their security.

Comparison of top cross-platform app development companies

NameNumber of EmployeesAverage Hourly RateMin Project SizeClutch ReviewIndustry Focus
iTechArt1000 – 9999$50 – $99 / hr$25,,000+4.9Mobile App DevelopmentWeb DevelopmentAR/VR DevelopmentBlockchainCRM Consulting and SICloud Consulting & SI
Deviniti250 – 999$50 – $99 / hr$25,000+5.0
Financial services eCommerce Legal
Specno10 – 49$25 – $49 / hr$10,000+5.0Information technology Business services Consumer products & services
Nintriva30-249$30 – $49 / hr$10,000+5.0Information technology Business services Consumer products & servicesEducationFinancial ServicesTelecommunicationseCommerce
Somnio Software10 – 49$50 – $99 / hr$10,0005.0Consumer products & services Information technology EducationMedical ServicesReal Estate
$50,000+4.9Custom Software Development Mobile App Development IT Staff Augmentation Web Development Digital Strategy Enterprise App
Modernization Other IT Consulting and SI
WillowTree,Inc1000-9999$150-$199/hr$250,000+4.9Generative AI AI Development Marketing Strategy
Mobile App Development UX/UI Design
Web Development
Zco Corporation250-999$25-$49/hr$10,000+4.8
Mobile App Development Custom Software
Development Web Development IT Staff Augmentation
Source: Clutch


There are many cross-platform app development companies that can help turn your project ideas into a reality. However, it’s important to remember that selecting the right company requires careful evaluation of a variety of factors.

When it comes to finding the perfect cross-platform app development partner, it’s crucial to look for a company that offers not just expertise but also a passion for innovation, creativity, and excellent customer service. One such company is Nintriva, which offers a wide range of customized and innovative solutions using cutting-edge technologies like Flutter.

The key to finding the right cross-platform app development company is to do your research, evaluate your options, and choose a partner that shares your passion and dedication for success. Consider Nintriva as your ideal partner in your app development journey.

 Contact Nintriva today to see how they can help bring your ideas to life.

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