Top Cross Platform App Developers
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Undisclosed$25 - $49 / hr2 - 9Joinville , Brazil
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See all 2 projectsEnvolve Labs is a web development company known for creating customized WordPress sites and dynamic online event platforms. Overall, the reviews indicate 100% positive feedback, highlighting their flexibility, professionalism, and successful project outcomes. Notably, 50% of reviewers mentioned increased user engagement and revenue following their services.
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$5,000+$100 - $149 / hr250 - 999Suceava, Romania
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See all 17 projectsASSIST Software is a versatile company specializing in Mobile App Development, including iOS and Android Development. The company has garnered positive feedback for its high-quality deliverables, with a strong emphasis on project management and technical expertise, as cited by 100% of reviewers. Clients appreciate their problem-solving culture and flexibility, contributing to successful long-term partnerships.
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$25,000+$50 - $99 / hr10 - 49New York, NY
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See all 9 projectsAPPSTIRR is a Mobile App Development company that provides services including iOS and Android Development. Reviews reveal a mixed experience, with approximately 67% of clients expressing satisfaction with their communication, project management, and the quality of deliverables, while 33% reported dissatisfaction, citing issues such as unmet deliverables and inadequate professionalism. Key strengths mentioned include effective communication and attention to client needs.
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$10,000+$25 - $49 / hr10 - 49Praha, Czech Republic
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See all 8 projectsKOALA42 is a mobile app development company known for its expertise in creating cloud-based solutions and transforming websites into native iOS and Android applications. The reviews highlight their agile project management, on-time delivery, and strong communication, with 100% positive feedback on their professionalism and commitment to excellence.
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$5,000+$100 - $149 / hr2 - 9Calgary, Canada
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See all 15 projectsCalibre Consulting is a versatile company specializing in Mobile App Development and Application Development, including iOS and Android platforms. The company is praised for its professionalism, efficiency, and ethical approach, as reflected in 100% positive feedback. Notable strengths include quick response times, innovative solutions, and maintaining quality work while aligning with clients' evolving needs.
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$50,000+$50 - $99 / hr50 - 249New York, NY
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See all 17 projectsFirst Factory is a mobile app development company specializing in iOS and Android platforms. Their services include comprehensive app development and ongoing maintenance, as highlighted by their successful project for a telemedicine provider. Client feedback indicates 100% satisfaction with their professionalism, technical expertise in React and React Native, and ability to enhance user experience significantly.
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$10,000+< $25 / hr250 - 999Ahmedabad, India
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See all 50 projectsYudiz Solutions is a Mobile App Development company that consistently receives commendations for its technical expertise and responsiveness, specifically in iOS and Android development. A notable 90% of feedback reflects satisfaction with their project management and problem-solving skills, with clients highlighting their ability to deliver timely and innovative solutions. The company has fostered long-term relationships through consistent communication and quality execution.
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Undisclosed$50 - $99 / hr50 - 249Istanbul, Türkiye
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See all 4 projectsTmob Tech Inc. is a mobile application development company specializing in iOS and Android development. Overall feedback highlights their expertise in creating innovative and user-friendly apps, with significant positive reception; for instance, a project app was rated 4.7/5 on Google Play and 4+/5 on the iTunes App Store shortly after launch.
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$1,000+$25 - $49 / hr2 - 91 A, India
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See all 6 projectsLogin2Tech Websoft Pvt. Ltd. is a mobile app development company specializing in Android and iOS development, alongside PHP-based systems. They consistently deliver projects on time and within budget, with 100% of reviewers highlighting their professionalism, adaptability to strict deadlines, and robust post-project support.
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$10,000+$50 - $99 / hr2 - 9Poznań, Poland
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See all 1 projectsMoyra is a software development company specializing in creating SaaS solutions for HR applications, particularly onboarding apps. They are praised for their effective project management and consistent communication, utilizing Azure DevOps and Slack. With 100% positive feedback, clients appreciate Moyra's thorough follow-up meetings and smooth, automated solutions for employee onboarding.
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$5,000+$25 - $49 / hr10 - 49Sahibzada Ajit Singh Nagar, India
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See all 7 projectsNaxtre Technologies Pvt Ltd is a Mobile App Development company specializing in creating bespoke applications for iOS and Android platforms. The company is praised for its ability to deliver high-quality, innovative mobile solutions, with 100% of reviewers highlighting their effective communication and responsiveness. Clients commend Naxtre's project management skills and adherence to timelines, with no significant areas for improvement frequently mentioned.
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$5,000+$25 - $49 / hr10 - 49Cluj-Napoca, Romania
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See all 22 projectsZipper Studios is a Mobile App Development company specializing in iOS and Android development. The company consistently receives positive feedback, with over 90% of reviewers commending their high-quality code, adherence to deadlines, and effective project management. Clients frequently highlight their technical expertise and strong communication skills, making them a reliable partner for mobile software engineering projects.
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$5,000+$25 - $49 / hr10 - 49Zagreb, Croatia
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See all 9 projectsProject42.Agency [powered by Uprise] is a Mobile App Development company known for creating tailored, highly functional, and engaging mobile applications. Feedback highlights their effective project management and clear communication, with 100% of reviewers praising their ability to meet project goals and timelines while delivering solutions that surpass expectations.
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$10,000+$25 - $49 / hr2 - 9
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See all 2 projectsBroditec is a mobile app development company praised for its strong technical expertise and excellent project support. While 100% of reviews highlight their impressive consulting and problem-solving abilities, approximately 100% also note delays in delivery timelines due to technical challenges. Their dedication to quality and alignment with client values are consistently appreciated.
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$1,000+< $25 / hr50 - 249Rajkot, India
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See all 25 projectsWings Tech Solutions is a mobile app development company specializing in Mobile App Development for iOS and Android platforms. With an impressive client-centric approach, the company is commended for its seamless project management, expertise in React Native, and ability to deliver tailored solutions. Approximately 100% of feedback highlights their strong communication and adaptability to client needs, while around 67% note opportunities for slightly faster delivery.
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$25,000+$150 - $199 / hr10 - 49
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See all 16 projectsSmartLogic is a specialized Mobile App Development company, prominently involved in custom iOS and Android development. Reviews highlight their strong project management skills and ability to translate complex ideas into polished apps. Approximately 80% of reviewers praise their responsiveness and quality, while a few note slower refinement in UI/UX areas.
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$25,000+$25 - $49 / hr50 - 249Richardson, TX
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See all 18 projectsJumpGrowth is a Mobile App Development company recognized for its expertise in mobile and virtual reality applications. With a focus on delivering projects on time and within budget, they have achieved a high level of client satisfaction. Approximately 80% of reviewers highlight their strong communication and responsiveness, while 60% commend their developers' skill and capability. Areas for improvement include simplifying access to project source code.
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$5,000+< $25 / hr10 - 49Warszawa, Poland
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See all 9 projectsMX Studio is a versatile web design and development company praised for its quick, precise, and reliable services. Reviews highlight their effective project management, with 100% of clients noting their unique engagement and communication style. Additionally, clients appreciate their professional approach and timely delivery, with no significant areas for improvement identified.
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$5,000+$50 - $99 / hr10 - 49Rīga, Latvia
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See all 3 projectsThinkitive Lab is a versatile company offering mobile application development, including iOS and Android development, as well as web development and UX/UI design services. The company has received 100% positive feedback, with reviewers praising their professionalism, adherence to timelines, and comprehensive service. Specifically, 50% of reviewers highlighted their expertise in project management and delivering on time.
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$10,000+$25 - $49 / hr50 - 249Dhaka, Bangladesh
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See all 58 projectsFlyte Solutions Ltd. is a mobile app development company that excels in creating intuitive applications with smooth integrations for both iOS and Android platforms. Reviewers consistently praise their ability to simplify complex data and user experiences, with approximately 90% highlighting their effective communication and problem-solving skills. Clients appreciate their proactive approach, with over 75% noting their innovative solutions and strong sense of ownership.
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$1,000+< $25 / hr250 - 999Pune, India
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See all 1 projectsMindpool Technologies is a web development company known for its expertise in building secure and responsive websites. The reviews highlight their strong project management skills, adherence to deadlines, and effective communication, with 100% of reviewers noting positive impacts on user experience and website traffic. A notable theme is their ability to understand and implement intricate client requirements.
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$25,000+$50 - $99 / hr50 - 249Seattle, WA
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See all 32 projectsMobcoder, a Mobile App Development company, consistently receives positive reviews for their technical expertise and project management capabilities. Over 85% of clients commend their responsiveness, timely delivery, and ability to fulfill complex project requirements across iOS and Android platforms. While some feedback mentions improvements in design aesthetics and documentation, Mobcoder's strong client commitment and ability to adapt to client needs are highly praised.
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$25,000+$25 - $49 / hr50 - 249San Francisco, CA
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See all 13 projectsKwanso LLC is a Mobile App Development company recognized for its strong project management and timely delivery across diverse projects, from iOS and Android development to backend improvements. Reviewers frequently praise their adaptability and effective communication, mentioning a 100% on-time delivery rate. Clients highlight their ability to understand requirements and deliver cost-effective solutions, with over 80% of feedback being highly positive.
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$5,000+$150 - $199 / hr2 - 9Philadelphia, PA
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See all 1 projectsNight Kitchen Interactive is a digital solutions company specializing in creating interactive environments for museums. The reviews highlight their commitment to tailoring technology to enhance visitor experiences, with 100% of feedback expressing satisfaction with their collaborative and engaged approach. Their focus on understanding client needs before implementing technology sets them apart in the industry.
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$1,000+< $25 / hr10 - 49Ahmedabad, India
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See all 33 projectsSaurabh Infosys is a comprehensive Mobile App Development company specializing in iOS and Android development, with a strong focus on integrating innovative UI/UX design. The reviews indicate a high level of satisfaction, with approximately 90% of clients praising their proactive project management and effective communication. A notable 75% of reviews emphasize their ability to align with client values and provide tailored solutions within budget constraints.
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$5,000+$50 - $99 / hr10 - 49Gdynia, Poland
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See all 18 projectsDeSmart is a Mobile App Development company specializing in Android and iOS Development, praised for its expertise in React Native and successful integration of complex app features. A significant 100% of reviewers highlight their efficient project management and collaborative approach, though some suggest improvements in time estimates. Overall, DeSmart is recognized for delivering high-quality mobile applications and fostering positive client experiences.
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$1,000+$25 - $49 / hr50 - 249Los Angeles, CA
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See all 8 projectsKurli Codes is a web development company specializing in creating advanced, user-friendly websites with interactive features such as augmented reality and comprehensive e-commerce solutions. Feedback from their clients is overwhelmingly positive, with 100% satisfaction noted across multiple projects. Clients appreciate their responsive communication, innovative solutions, and competitive pricing, although some suggest improvements in project timelines and proactive guidance.
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$25,000+$25 - $49 / hr10 - 49Kyiv, Ukraine
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See all 4 projectsTech Ask OU is a company specializing in web development, UI/UX design, and staff augmentation services. The reviews reflect a 100% positive feedback rate, highlighting their excellent communication, efficient delivery, and strong team dynamics. Clients consistently praise their project management skills and synergy, with no significant areas for improvement noted.
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$10,000+$25 - $49 / hr10 - 49Las Palmas de Gran Canaria, Spain
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See all 1 projectsSquaads is a software development company specializing in creating business management solutions, utilizing technologies like Angular and Node.js. Their clients report a reduction in errors and improved efficiency, with 100% noting satisfaction with communication and project management. However, some reviews suggest that progress can occasionally be slow. Overall, feedback is predominantly positive.
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$10,000+$25 - $49 / hr50 - 249San Diego, CA
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See all 25 projectsSynergyTop is a versatile web development and SEO company lauded for its technical expertise, proactive problem-solving, and exceptional project management. The firm consistently garners positive feedback, with over 90% of reviewers praising its commitment to delivering value and solutions tailored to clients' needs. Notably, 80% of reviews highlight their remarkable communication skills and ability to meet deadlines, reflecting their dedication to client satisfaction and project success.
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$5,000+$25 - $49 / hr50 - 249Jaipur, India
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See all 3 projectsUnanimous Studios is a mobile app development company specializing in iOS and Android development, with a strong focus on game applications. Reviews indicate consistent satisfaction with their project management and deliverables, with approximately 80% of feedback highlighting their professionalism and communication. Clients appreciate their ability to transform concepts into final products, although some suggest improvements in team expansion and game mechanics.
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$10,000+$150 - $199 / hr10 - 49Minneapolis, MN
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See all 16 projectsCompoze Labs is a mobile app development company known for its expertise in creating user-friendly and efficient applications across various industries, including healthcare and marketing. Client reviews highlight their impressive communication skills, adaptability, and commitment to transparent pricing, with 100% of the reviews being positive. Their ability to deliver timely and high-quality solutions is consistently praised.
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$10,000+$50 - $99 / hr10 - 49Montevideo, Uruguay
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See all 11 projectsUXDivers is a proficient mobile application development company with expertise in UX/UI design and mobile software engineering, utilizing frameworks like ReactJS and Xamarin. Clients consistently praise their adaptability and code quality, with 90% noting their effective communication and understanding of complex projects. However, some reviews mention improvement areas in project management and clarifying requirements during development.
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$50,000+$150 - $199 / hr10 - 49Rocklin, CA
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See all 2 projectsGrey Sky Media specializes in technology integration and web development, offering services such as cloud data integration and website overhauls. Client feedback highlights their professionalism and dedication, with 100% positive reviews praising their innovative solutions and commitment to meeting client goals. Notably, 50% of reviewers commend their knowledge and problem-solving abilities.
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$5,000+$25 - $49 / hr50 - 249Cape Town, South Africa
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See all 2 projectsThe Delta is a Mobile App Development company noted for its ability to deliver fully functioning MVPs quickly. Over 90% of reviews emphasize their responsiveness and client-centric approach, resulting in significant milestones, such as onboarding 300 clients in six months. The Delta's team is praised for their collaboration and alignment with client values.
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List of the Top 15 Cross Platform Application Development Companies
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$5,000+$25 - $49 / hr250 - 999Jaipur, India
Ability to deliver
39.8/40.020/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
60% Mobile App Development60% Hybrid & cross platform apps40% Other -
$10,000+$25 - $49 / hr250 - 999San Francisco, CA
Ability to deliver
37.4/40.020/20 Reviews10/10 Clients & Experience7.4/10 Market PresenceService focus
40% Mobile App Development50% Hybrid & cross platform apps60% Other -
$10,000+$25 - $49 / hr50 - 249Warszawa, Poland
Ability to deliver
37.1/40.020/20 Reviews10/10 Clients & Experience7.1/10 Market PresenceService focus
55% Mobile App Development50% Hybrid & cross platform apps45% Other -
$10,000+$25 - $49 / hr250 - 999Bengaluru, India
Ability to deliver
37.5/40.020/20 Reviews10/10 Clients & Experience7.5/10 Market PresenceService focus
30% Mobile App Development100% Hybrid & cross platform apps70% Other -
$25,000+$25 - $49 / hr50 - 249Agoura Hills, CA
Ability to deliver
36.8/40.020/20 Reviews10/10 Clients & Experience6.8/10 Market PresenceService focus
50% Mobile App Development50% Hybrid & cross platform apps50% Other -
$10,000+$50 - $99 / hr250 - 999Greenville, SC
Ability to deliver
36.6/40.020/20 Reviews10/10 Clients & Experience6.6/10 Market PresenceService focus
60% Mobile App Development55% Hybrid & cross platform apps40% Other -
$25,000+$50 - $99 / hr50 - 249Warszawa, Poland
Ability to deliver
36.4/40.020/20 Reviews10/10 Clients & Experience6.4/10 Market PresenceService focus
80% Mobile App Development100% Hybrid & cross platform apps20% Other -
$10,000+$50 - $99 / hr50 - 249Montevideo, Uruguay
Ability to deliver
36.3/40.018.6/20 Reviews10/10 Clients & Experience7.7/10 Market PresenceService focus
75% Mobile App Development80% Hybrid & cross platform apps25% Other -
$10,000+$50 - $99 / hr50 - 249Denver, CO
Ability to deliver
38.2/40.020/20 Reviews10/10 Clients & Experience8.2/10 Market PresenceService focus
50% Mobile App Development30% Hybrid & cross platform apps50% Other -
$5,000+< $25 / hr50 - 249Dallas, TX
Ability to deliver
36.8/40.020/20 Reviews10/10 Clients & Experience6.8/10 Market PresenceService focus
50% Mobile App Development40% Hybrid & cross platform apps50% Other -
$25,000+$25 - $49 / hr250 - 999Irving, TX
Ability to deliver
36.3/40.020/20 Reviews10/10 Clients & Experience6.3/10 Market PresenceService focus
30% Mobile App Development30% Hybrid & cross platform apps70% Other -
$25,000+< $25 / hr250 - 999Gurugram, India
Ability to deliver
35.9/40.020/20 Reviews10/10 Clients & Experience5.9/10 Market PresenceService focus
30% Mobile App Development30% Hybrid & cross platform apps70% Other -
$10,000+$25 - $49 / hr250 - 999Kolkata, India
Ability to deliver
35.2/40.020/20 Reviews9.8/10 Clients & Experience5.4/10 Market PresenceService focus
30% Mobile App Development35% Hybrid & cross platform apps70% Other -
$10,000+$50 - $99 / hr50 - 249Ząbki, Poland
Ability to deliver
34.6/40.020/20 Reviews9.3/10 Clients & Experience5.3/10 Market PresenceService focus
75% Mobile App Development100% Hybrid & cross platform apps25% Other -
$25,000+$100 - $149 / hr50 - 249Los Angeles, CA
Ability to deliver
35.9/40.020/20 Reviews10/10 Clients & Experience5.9/10 Market PresenceService focus
50% Mobile App Development40% Hybrid & cross platform apps50% Other -
$25,000+$50 - $99 / hr50 - 249Rzeszów, Poland
Ability to deliver
34.4/40.019.4/20 Reviews10/10 Clients & Experience5/10 Market PresenceService focus
50% Mobile App Development50% Hybrid & cross platform apps50% Other -
$1,000+$50 - $99 / hr10 - 49Philadelphia, PA
Ability to deliver
38.1/40.020/20 Reviews10/10 Clients & Experience8.1/10 Market PresenceService focus
80% Mobile App Development25% Hybrid & cross platform apps20% Other -
$25,000+$50 - $99 / hr1,000 - 9,999Gliwice, Poland
Ability to deliver
35.1/40.018/20 Reviews10/10 Clients & Experience7.1/10 Market PresenceService focus
20% Mobile App Development30% Hybrid & cross platform apps80% Other -
$50,000+$50 - $99 / hr1,000 - 9,999L'viv, Ukraine
Ability to deliver
35.2/40.017.6/20 Reviews10/10 Clients & Experience7.6/10 Market PresenceService focus
17% Mobile App Development35% Hybrid & cross platform apps83% Other -
$10,000+$25 - $49 / hr10 - 49Kyiv, Ukraine
Ability to deliver
33/40.018.4/20 Reviews9.9/10 Clients & Experience4.7/10 Market PresenceService focus
70% Mobile App Development80% Hybrid & cross platform apps30% Other -
$10,000+$25 - $49 / hr50 - 249Indore, India
Ability to deliver
33/40.018/20 Reviews10/10 Clients & Experience5/10 Market PresenceService focus
50% Mobile App Development50% Hybrid & cross platform apps50% Other -
$25,000+$50 - $99 / hr50 - 249Buenos Aires, Argentina
Ability to deliver
32.8/40.017.4/20 Reviews10/10 Clients & Experience5.4/10 Market PresenceService focus
50% Mobile App Development60% Hybrid & cross platform apps50% Other -
$50,000+$150 - $199 / hr10 - 49Chicago, IL
Ability to deliver
32.8/40.017/20 Reviews10/10 Clients & Experience5.8/10 Market PresenceService focus
60% Mobile App Development60% Hybrid & cross platform apps40% Other -
$1,000+< $25 / hr50 - 249Kolkata, India
Ability to deliver
32.8/40.017.8/20 Reviews10/10 Clients & Experience5/10 Market PresenceService focus
50% Mobile App Development50% Hybrid & cross platform apps50% Other -
$10,000+$25 - $49 / hr10 - 49
Ability to deliver
32.6/40.018.2/20 Reviews9.8/10 Clients & Experience4.6/10 Market PresenceService focus
70% Mobile App Development80% Hybrid & cross platform apps30% Other -
$50,000+$100 - $149 / hr10 - 49London, England
Ability to deliver
32.6/40.017/20 Reviews10/10 Clients & Experience5.6/10 Market PresenceService focus
70% Mobile App Development70% Hybrid & cross platform apps30% Other -
$10,000+$50 - $99 / hr50 - 249Wrocław, Poland
Ability to deliver
35.2/40.020/20 Reviews9.8/10 Clients & Experience5.4/10 Market PresenceService focus
30% Mobile App Development60% Hybrid & cross platform apps70% Other -
$10,000+$25 - $49 / hr250 - 999Kuala Lumpur, Malaysia
Ability to deliver
33.7/40.019/20 Reviews10/10 Clients & Experience4.7/10 Market PresenceService focus
30% Mobile App Development30% Hybrid & cross platform apps70% Other -
$5,000+$25 - $49 / hr1,000 - 9,999Noida, India
Ability to deliver
32.3/40.017.6/20 Reviews10/10 Clients & Experience4.7/10 Market PresenceService focus
30% Mobile App Development25% Hybrid & cross platform apps70% Other -
$5,000+$25 - $49 / hr50 - 249Dnipro, Ukraine
Ability to deliver
33.6/40.018.2/20 Reviews10/10 Clients & Experience5.4/10 Market PresenceService focus
40% Mobile App Development60% Hybrid & cross platform apps60% Other
Latest Cross Platform Articles
See all articles
How App Companies Can Build Trust with Customers
Learn how app companies can build customer trust through better privacy practices, transparent communication, and stronger security to improve retention and...
Cross-Platform App Development Agency FAQs
Leading agencies track key performance indicators such as install rate, user retention, session length, and revenue per user. They integrate analytics tools like Firebase, Mixpanel, or Amplitude to monitor these metrics and run A/B tests, allowing stakeholders to tie feature releases directly to business outcomes.
A cross-platform app development company designs, builds, tests, and maintains mobile applications that run smoothly on multiple operating systems—usually iOS and Android—with a single shared codebase. By leveraging frameworks such as Flutter, React Native, Xamarin, or Kotlin Multiplatform, these firms streamline development timelines, reduce maintenance overhead, and ensure a consistent user experience across devices. They also advise on app store compliance, security, and performance optimization.
Cross-platform app development companies tailor their services to help clients accomplish their unique goals and launch sophisticated apps. By partnering with these service providers, you can expect services such as:
- Technical consulting and product discovery
- UI/UX design tailored for multi-device compatibility
- Shared-codebase development (i.e., Flutter, React Native)
- Native module integration for device-specific features
- API and backend development or integration
- Quality assurance, automated testing, and CI/CD
- Post-launch support, updates, and mobile app development services such as analytics implementation and feature road-mapping
Budgets range widely based on several variables such as project complexity, feature set, and team size. Here’s a run through of average pricing based on cross-platform app development projects reviewed on Clutch:
- MVP or prototype: $25,000 – $60,000
- Mid-range consumer app: $60,000 – $150,000
- Enterprise-grade solution with integrations: $150,000 – $500,000+
Hourly rates for these service providers typically fall between $50 – $149. In addition, offshore teams often charge less, while top-tier U.S. agencies may exceed $200 per hour. Always request a detailed scope, delivery milestones, and maintenance costs up front.
- Match technical expertise to your stack (e.g., Flutter vs. React Native).
- Review case studies for similar industries or app types.
- Validate client testimonials and Clutch ratings.
- Assess communication style and project management tools.
- Compare total cost of ownership—including post-launch support—rather than just initial quotes.
Before committing to a long-term partnership, consider doing a trial run or a short test project. A discovery workshop or paid proof of concept is a low-risk way to evaluate fit before committing to a full build.
- Guarantees of unrealistically low budgets or launch dates
- Vague contracts without source-code ownership clauses
- Limited portfolio in cross platform mobile programming
- Poor responsiveness during the sales cycle
- Overreliance on generic templates instead of custom architecture
If a provider can’t explain their quality-assurance process or refuses to give you repository access, keep looking. Taking your time and being meticulous is better than wasting time, effort, and resources with the wrong partner.
- Which frameworks and programming languages do you specialize in?
- How do you handle OS-specific features within a shared codebase?
- What is your approach to testing on real devices versus emulators?
- Will I own the source code and IP upon project completion?
- How do you structure post-launch maintenance and updates?
- Can you provide references for projects similar in scope and industry?
Cross-platform teams deliver faster time-to-market and up to 30–40% cost savings because a single codebase powers multiple platforms. This unified approach simplifies future updates, ensures design consistency, and reduces the need for duplicate QA cycles. Native teams may still be preferable for GPU-intensive gaming or highly platform-specific experiences, but most business, productivity, and e-commerce apps see greater ROI with a cross-platform strategy.