Top Cross Platform App Developers
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$10,000+$25 - $49 / hr50 - 249Ahmedabad, India
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See all 9 projectsThinkwik is a Mobile App Development company specializing in iOS and Android applications. Their reviews are overwhelmingly positive, with 100% of clients praising their efficient project management, effective communication, and ability to meet or exceed milestones. Approximately 75% of reviewers highlight Thinkwik's strong customer service and seamless integration with their teams, contributing to successful project outcomes.
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$25,000+$50 - $99 / hr10 - 49Poznań, Poland
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See all 9 projectsPrograils is a software development company specializing in Ruby on Rails, delivering comprehensive solutions across web and mobile platforms. Reviews highlight their technical competency, proactive communication, and strong project management, with 100% of clients noting responsiveness and professionalism. While some minor issues in quality assurance were mentioned, the overall feedback is overwhelmingly positive, with clients appreciating their reliability and ethical business approach.
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$5,000+< $25 / hr10 - 49Udaipur, India
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See all 7 projectsPHP Poets IT Solutions Pvt Ltd. is a mobile app development company praised for its excellent work culture and customer understanding. The company consistently delivers projects on time and meets clients' needs effectively, with 100% of reviewers mentioning their impressive responsiveness and staff understanding.
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$5,000+< $25 / hr50 - 249Ahmedabad, India
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See all 14 projectsSuria International Services Pte. Ltd. excels in Mobile App Development and offers comprehensive application development services for both web and mobile platforms, including iOS and Android. With a focus on effective project management and customer service, 100% of reviewers highlight their satisfaction with the company's ability to meet deadlines and deliver user-friendly, financially viable solutions.
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$5,000+$25 - $49 / hr250 - 999Lehi, UT
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See all 16 projectsCoDev is a proficient software development company specializing in mobile app development, healthcare applications, and mobile software engineering. Reviews highlight their consistent on-time delivery and high-quality communication, with 100% of clients mentioning cost-effective pricing and excellent customer service. While their talent selection process could improve, their overall project management and work ethic are commendable.
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$10,000+< $25 / hr50 - 249Coimbatore, India
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See all 1 projectsSparkout Tech Solutions is a software development company specializing in building and maintaining custom platforms. They are praised for their quick communication and efficient project management, with 100% of reviewers noting their successful product delivery. While they initially faced some challenges with bugs, these were addressed promptly, demonstrating their commitment to quality.
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$25,000+$50 - $99 / hr10 - 49Kraków, Poland
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See all 4 projectsRIOT is a dynamic creative agency specializing in backend and frontend development, UX/UI design, and digital solutions for various sectors, including e-commerce, real estate, and telemedicine. Their reviews highlight a strong commitment to design excellence and proactive problem-solving, with 100% of clients praising their project management and responsiveness. However, there is room for improvement in frontend code maintainability as noted by a small percentage of feedback.
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$1,000+< $25 / hr10 - 49
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See all 4 projectsTerranet is a web development company that specializes in providing comprehensive digital solutions, including PHP website development, custom CMS creation, and full-stack services. Overall, Terranet has received positive feedback for their customer-oriented approach, innovative solutions, and quality work, with 100% of reviewers expressing satisfaction with their services. However, some clients noted potential improvements in deadline management.
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$5,000+$25 - $49 / hr50 - 249Ahmedabad, India
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See all 6 projectsTechforce Global is a versatile technology solutions provider, offering services such as website development, Java-based payment gateways, and advanced digital wallet solutions. The company is highly praised for its technical expertise, customer-centric approach, and effective project management, with 100% of reviewers noting their timely delivery and professionalism. Their dedication to understanding client needs and delivering tailored, high-quality solutions is a recurring theme across all reviews.
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$1,000+$25 - $49 / hr10 - 49
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See all 3 projectsBrandrevam is a digital marketing agency specializing in website redesign and development, particularly on WordPress using Elementor. The company consistently receives positive feedback, with 100% of reviews highlighting their excellent communication, timely delivery, and ability to improve brand identity and conversions. Clients repeatedly praise their high-quality work and cost-effective solutions.
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$1,000+< $25 / hr50 - 249Surat, India
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See all 16 projectsCoderKube Technologies is a versatile software development firm specializing in Mobile App Development, including iOS and Android apps. Reviews highlight their exceptional code quality, robust technical solutions, and effective communication, leading to 4,000–5,000 monthly users on clients' platforms. While 90% of feedback is positive, 10% suggest improvement in design services.
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$5,000+$50 - $99 / hr10 - 49Kraków, Poland
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See all 1 projectsNavarra Lab is a proficient web development company specializing in React.js, known for creating high-performance websites with enhanced user experiences. Overall feedback is overwhelmingly positive, highlighting their expertise, efficient project management, and commitment to delivering exceptional results. Impressively, 100% of the reviewers praised their knowledgeable team and agile work approach.
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$10,000+$50 - $99 / hr2 - 9London, England
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See all 15 projectsIngenious App Studios is a proficient Mobile App Development company specializing in creating intuitive and user-friendly apps for iOS and Android platforms. The company consistently receives high praise for its project management, timely delivery, and high-quality work, with 100% of reviewers highlighting their responsiveness and commitment to client needs. Clients appreciate their ability to develop complex features while maintaining clear communication and adaptability throughout the project lifecycle.
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$1,000+$25 - $49 / hr1,000 - 9,999
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See all 4 projectsCollatree is a versatile IT services company specializing in ERP solutions, web and mobile app development, and digital marketing. They are praised for their exceptional skill and attention to detail, responsiveness, client management, and transparency, resulting in positive outcomes such as a 70% traffic increase for one client and a 90% retention rate for another. Most feedback highlights their effective project management and thorough communication, although some suggest focusing more on agility over perfection. Overall, Collatree is highly recommended by clients.
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$1,000+< $25 / hr2 - 9Surat, India
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See all 3 projectsCodeInfluencer IT Solutions LLP is a versatile IT service provider specializing in custom web and mobile app development, as well as complex system integrations. Across their reviews, 100% of clients highlight their effective project management and technical proficiency, with 67% noting their problem-solving capabilities and persistence. However, some suggest improvements in testing and marketing their expertise.
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$5,000+$25 - $49 / hr10 - 49Kharkiv, Ukraine
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See all 3 projectsRD DEV Solutions is a software development company specializing in frontend development, with expertise in AngularJS and Node.js. They have consistently received positive feedback, with clients praising their technical proficiency, communication skills, and ability to integrate with existing teams. Approximately 100% of reviewers commend their adaptability and collaborative approach, though some suggest improvements in backend support and development process management.
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$10,000+$50 - $99 / hr10 - 49Florianópolis, Brazil
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See all 2 projectsInCuca Tech is a technology solutions company specializing in developing custom tools and CRM systems tailored to clients' needs. Reviews highlight their professionalism, strong project management skills, and effective communication, using tools like Instagantt and Slack. Impressively, 100% of reviewers commend their result-oriented approach and organizational capabilities, though some suggest improvements in online meetings. Overall, feedback is predominantly positive.
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$25,000+$25 - $49 / hr2 - 9Vickramasingapuram, India
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See all 2 projectsZephony is a development company known for building MVPs, particularly for AI-powered solutions. The overall feedback is positive, with clients praising their commitment despite unforeseen challenges. However, 100% of reviewers suggest assessing complexities early to prevent delays. The company's culture fit and cost-effectiveness are consistently highlighted as strengths.
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$5,000+$25 - $49 / hr10 - 49Islamabad, Pakistan
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See all 4 projectsAlphabase is a technology solutions company specializing in developing blockchain, DeFi, and exchange solutions. Reviews indicate a high level of client satisfaction, with 100% positive feedback emphasizing their competence, effective communication, and adherence to project timelines. Clients appreciate their ability to understand complex ideas and deliver operational systems efficiently. The consistent quality of their work leaves no areas for improvement according to feedback.
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$10,000+$50 - $99 / hr10 - 49Santa Monica, CA
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See all 10 projectsPhD Labs is a Mobile App Development company specializing in iOS and Android development. Overall, their client feedback is overwhelmingly positive, with a focus on strong communication, timely delivery, and innovative design processes, such as "app camp." Approximately 90% of reviewers commend their professionalism and collaborative approach, ensuring clients are integral to the development process.
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$1,000+< $25 / hr10 - 49Faridabad, India
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See all 2 projectsAppquarterz Technologies is a software testing company known for its expertise in both manual and automated testing. With 100% positive feedback from clients, they are praised for their technical ability, flexibility, and valuable contributions to UI and UX improvements. Their attention to detail and efficient workflow are consistently highlighted by clients as key strengths.
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$1,000+$25 - $49 / hr10 - 49Ahmedabad, India
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See all 17 projectsLinkSture Technologies Private Limited is a Mobile App Development company known for its excellent service and communication. With a focus on developing eCommerce mobile apps using React Native and Magento, they have consistently delivered projects on time despite challenges, impressing clients with their design quality and problem-solving capabilities. The feedback is overwhelmingly positive, highlighting their effective project management and communication.
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$1,000+$25 - $49 / hr10 - 49Lahore, Pakistan
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See all 1 projectsBig Heap Technologies specializes in Mobile App Development, particularly in mobile game development, as evidenced by their successful project with a driving exam simulation game for Prime Games. The company has received universally positive feedback, with 100% of reviewers praising their high-quality work, effective communication, and proactive project management.
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$10,000+$50 - $99 / hr2 - 9Naperville, IL
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See all 2 projectsGreygoo is a strategic digital design and communications agency that specializes in user interface design, web development, and digital marketing solutions. The reviews indicate a strong emphasis on strategic collaboration, excellent value, and high-quality deliverables, with 100% of reviewers praising their performance and design orientation. Clients consistently express satisfaction with Greygoo's work, citing improved user experiences and sustained partnerships.
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$1,000+< $25 / hr10 - 49Surat, India
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See all 2 projectsDeskcode Solution Pvt. Ltd. is a Mobile App Development company known for its efficient and responsive management. It impresses clients with quick project initiation and completion, while maintaining a high level of communication. Approximately 80% of reviewers highlight the firm's value for cost, though some suggest improvements in customer-accessible project documentation.
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$5,000+$25 - $49 / hr10 - 49Kharkiv, Ukraine
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See all 5 projectsSednor Holdings Limited is a Mobile Application Development company that excels in creating user-friendly, modern interfaces for both frontend and backend projects. Feedback indicates exceptional project management and quality, with 100% of reviews highlighting their responsiveness and adherence to timelines. Their youthful team is noted for impressive creativity and consistent communication, making them a reliable choice for Mobile Software Development needs.
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$10,000+$100 - $149 / hr10 - 49Oak Brook, IL
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See all 3 projectsKeyLimeTie is a mobile app development company specializing in iOS and Android applications. They are highly praised for their creativity and ability to deliver projects on time, with 100% of reviewers highlighting their outstanding service and trend-setting design capabilities.
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$1,000+< $25 / hr10 - 49Jaipur, India
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See all 14 projectsSurvin IT Solutions is a mobile application development company specializing in iOS and Android development. The reviews highlight their expertise and collaborative approach, with positive feedback on their ability to integrate feedback and meet project timelines. Approximately 80% of the feedback emphasizes their technical knowledge and support in refining project requirements, reflecting a strong understanding of mobile software engineering.
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$5,000+< $25 / hr10 - 49Jodhpur, India
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See all 4 projectsGTS Infosoft LLP is a Mobile App Development company specializing in iOS and Android applications. Their reviews reveal consistent praise for their project management, effective communication, and a customer-centric approach, with over 90% of feedback being positive. Clients appreciate their flexibility and technical expertise, though some suggest improvements in documentation updates and quality assurance.
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$5,000+$50 - $99 / hr10 - 49Dallas, TX
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See all 4 projectsHeavyTask is a versatile digital solutions company specializing in web development, e-commerce integration, SEO, and digital marketing services. The feedback from clients is overwhelmingly positive, with 100% of reviewers praising their responsiveness, professionalism, and ability to meet deadlines. Notably, 75% of clients highlighted their impressive communication and project management skills, contributing to successful project outcomes.
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$5,000+$50 - $99 / hr50 - 249Ahmedabad, India
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See all 2 projectsWebCodeGenie Technology Pvt. Ltd. is a versatile web development company that excels in creating websites and CMS platforms using technologies like Laravel, WordPress, PHP, and MySQL. They receive overwhelmingly positive feedback, with 100% satisfaction reported by clients, highlighting their effective project management and ability to provide skilled, adaptable programmers tailored to project needs.
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$1,000+< $25 / hr2 - 9Ahmedabad, India
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See all 1 projectsTheFoxLab.com is a web and app design company known for its competency in handling complex website projects with integrations like booking systems and financial transactions on Stripe. They are praised for their efficiency and problem-solving skills, receiving 100% positive feedback for delivering projects on time and within budget, leveraging tools like Trello and WhatsApp for effective project management.
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$10,000+$25 - $49 / hr50 - 249Pune, India
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See all 8 projectsOnelab Ventures is a Mobile App Development company praised for its proficiency in Android Development and its ability to enhance productivity through custom applications. Approximately 90% of reviewers commend their excellent communication and timely delivery. While suggestions for more progress updates exist, Onelab Ventures' strong technical expertise and customer service make them a reliable choice for Mobile Application Development projects.
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$1,000+$50 - $99 / hr10 - 49Provo, UT
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See all 10 projectsBright Bridge Web is a Mobile Application Development company known for its exceptional communication and dedication to client success. According to reviews, the company consistently achieves project goals, with 100% of feedback highlighting their effective communication, adaptability, and genuine investment in project outcomes, demonstrating their strong commitment to meeting and exceeding client expectations.
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$5,000+< $25 / hr10 - 49Ahmedabad, India
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See all 4 projectsFameget Consultants Private Limited is a prominent company specializing in mobile app development, iOS development, and Android development. With 100% positive feedback from clients across various industries, they are praised for their effective communication, professionalism, and timely solutions, consistently delivering high-quality mobile and smartphone app development services.
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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
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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.