Top Cross Platform App Developers
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$1,000+< $25 / hr10 - 49Surat, India
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See all 20 projectsDecodeUp Technologies specializes in Mobile App Development, providing end-to-end services for cross-platform applications. The company excels in delivering secure and user-friendly mobile solutions, achieving a 69% user satisfaction rate and a 30% faster deployment cycle than expected. Reviewers consistently praise DecodeUp Technologies for their technical excellence, agile project management, and ability to align their work with client goals, with no noted areas for improvement.
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$25,000+$25 - $49 / hr50 - 249Nashik, India
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See all 28 projectseLuminous Technologies Pvt Ltd is a versatile software development company, highly regarded for its expertise in mobile app development services, including iOS and Android development. The company boasts a strong commitment to quality and timely delivery, receiving approximately 90% positive feedback for meeting deadlines and providing responsive communication. Clients commend their technical proficiency and ability to adapt, although there is room for improvement in UI/UX design implementation.
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$10,000+$50 - $99 / hr10 - 49Warszawa, Poland
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See all 3 projectsPanowie Pro is a web development company that specializes in creating innovative and technologically advanced websites. Based on client reviews, 67% of the feedback highlights their creativity and commitment to projects, while 33% suggest improvements in quality assurance and pre-launch testing. Clients appreciate their project management style and responsiveness, contributing to the successful delivery of well-received websites.
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$1,000+$50 - $99 / hr2 - 9Glasgow, Scotland
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See all 7 projectsVecro Tech is a versatile mobile app development company known for its flexibility and attention to client needs. The company has consistently delivered projects on time and within budget, with a remarkable 100% positive feedback from clients. Reviewers frequently highlight their excellent communication and project management skills, as well as their ability to adapt to complex requirements across various industries.
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$10,000+$25 - $49 / hr10 - 49Chişinău, Moldova
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See all 4 projectsCorLab Tech is an IT services company specializing in web development, UX/UI design, and project staffing solutions. According to reviews, 100% of clients express satisfaction with their deliverables, highlighting their professional workflow, effective communication, and ability to meet deadlines. Clients commend their responsiveness and technical expertise, with some suggesting more proactive improvement ideas.
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$1,000+$25 - $49 / hr2 - 9Gandhinagar, India
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See all 2 projectsPanim Technology is a web development company known for its website upgrade and creation services. The company receives overwhelmingly positive feedback, with 100% of reviewers praising their communication and attention to detail. Clients highlight their timely delivery and exceptional customer service, with 50% emphasizing their willingness to go above and beyond expectations.
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$5,000+$25 - $49 / hr250 - 999Washington, DC
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See all 33 projectsWebandcrafts is a Mobile App Development company specializing in iOS and Android applications. Their reviews highlight their flexibility, strong communication, and ability to revamp existing projects effectively. Notably, 100% of reviewers mentioned satisfaction with their communication and problem-solving approach, indicating positive feedback overall.
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$5,000+$50 - $99 / hr2 - 9Cairo, Egypt
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See all 8 projectsPS Solutions is a Mobile App Development company offering tailored solutions, including iOS and Android Development. They are praised for their adaptability and commitment, with 100% of reviews highlighting their timely delivery and dedication to meeting business needs. Clients commend their ability to deliver projects promptly, such as a bug-free MVP within 10 working days, with some suggesting quicker app updates.
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$25,000+$25 - $49 / hr50 - 249Jaipur, India
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See all 14 projectsNimble AppGenie is a Mobile Application Development company known for delivering custom, high-quality apps across iOS and Android platforms. 100% of reviewers praised their project management, emphasizing timely delivery and effective communication. Clients are notably impressed by their ability to integrate complex functionalities with user-friendly designs, although some suggest enhancements in training and content writing.
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$5,000+< $25 / hr50 - 249Cairo, Egypt
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See all 1 projectsSmartTech is a technology company specializing in developing hyper-automation platforms, including RPA, Conversational AI, and Intelligent Document Processing. The company receives consistently positive feedback, with 100% of reviewers highlighting timely project delivery and valuable service. Clients are particularly impressed by SmartTech's people and culture, contributing to successful collaboration.
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$5,000+$25 - $49 / hr50 - 249Kyiv, Ukraine
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See all 2 projectsPM Partners is an IT services company specializing in developing quality control tools, such as audio recording and analysis solutions for client interactions. They have received predominantly positive feedback, with notable praise for their professional project management and effective communication. One reviewer highlighted their expertise leading to successful project completion across multiple regions, despite minor challenges with cloud storage during a large-scale launch.
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$5,000+$25 - $49 / hr10 - 49Paris, France
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See all 11 projectsFirst Line Outsourcing is a versatile company specializing in mobile app development and custom software engineering, often praised for its technical acumen and robust project management. They consistently deliver projects on time, as highlighted in 100% of reviews, and are noted for their ability to blend technical expertise with user-focused design, meeting diverse client needs. Their strategic approach and commitment to client satisfaction make them a preferred choice for mobile software development.
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$5,000+< $25 / hr50 - 249Bhuj, India
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See all 11 projectsWRTeam is a mobile app development company specializing in delivering comprehensive digital solutions, from planning to post-launch support. They have received overwhelmingly positive feedback, with over 90% of users rating their experience as excellent. Clients commend their timely delivery, responsiveness, and creative problem-solving, establishing WRTeam as a reliable partner for application development projects.
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$10,000+$25 - $49 / hr250 - 999Beverly Hills, CA
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See all 47 projectsIndiaNIC Infotech Limited is a prominent firm specializing in mobile app development, with expertise in iOS and Android platforms. Client reviews highlight their speed, reliability, and strong project management, with 100% of the feedback indicating satisfaction and effective communication. They are praised for their dedication to customer service and ability to deliver functional, high-quality apps, with many clients noting their impressive teamwork and commitment to meeting deadlines.
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$10,000+$25 - $49 / hr50 - 249Noida, India
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See all 7 projectsCopperchips Inc is a proficient mobile app development company specializing in iOS and Android development, alongside web design and UI/UX services. With a strong emphasis on meeting deadlines and maintaining effective communication, 100% of their reviews highlight their time management and technical skills as impressive. Clients express satisfaction with their deliverables, noting a 27% increase in website traffic and successful project outcomes.
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$1,000+$50 - $99 / hr10 - 49Szczecin, Poland
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See all 1 projectsCodeton Software sp. z o.o. is a Mobile App Development company recognized for its expertise in iOS and web app solutions, including backend and CMS development. With 100% positive feedback, clients commend their high-quality code and innovative problem-solving skills, which consistently meet project requirements and deliver impressive outcomes.
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$75,000+$50 - $99 / hr2 - 9Secunderabad, India
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See all 1 projectsVRBIZTEC is a dynamic company specializing in production planning and optimization services. The overwhelmingly positive feedback highlights their ability to deliver quality solutions on time, with 100% of reviewers noting their effective communication and alignment with company values. Clients appreciate VRBIZTEC's energy and their ability to transform business needs into actionable insights.
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$25,000+< $25 / hr50 - 249
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See all 24 projectsAgicent is a Mobile App Development company that offers services in iOS and Android development, as well as web design and mobile software engineering. The company is praised for its meticulousness, communication, and cost-effectiveness, with around 90% of reviews highlighting their collaborative approach and successful project delivery. Clients frequently commend their dedication, responsiveness, and ability to meet project deadlines and expectations.
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$5,000+$50 - $99 / hr2 - 9Birkirkara, Malta
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See all 11 projectsAll Front is a development firm specializing in both frontend and backend Mobile App Development, known for their cost-effective and scalable solutions. They have been praised for their ability to integrate new technologies and organize project management efficiently, with 100% of reviews highlighting their strategic approach and infrastructure strengthening. Their team is commended for understanding customer needs and delivering practical, innovative solutions.
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$10,000+$50 - $99 / hr250 - 999Sunrise, FL
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See all 7 projectsSigma Solve Inc. is a Mobile App Development company recognized for their expertise in developing applications for both iOS and Android platforms. They have received predominantly positive feedback, with reviewers praising their professionalism, the timely delivery of projects, and talented team, though some suggested minor improvements in communication. Overall, clients express satisfaction with outcomes and service quality.
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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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$5,000+$25 - $49 / hr50 - 249
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See all 9 projectsAppexoft is a mobile app development company specializing in Android and iOS development. Reviews highlight their professionalism, strong communication, and customer satisfaction focus, with 100% of clients noting the team's dedication and seamless workflow. Clients appreciate Appexoft's commitment to quality and ability to integrate effectively into existing teams, delivering projects on time and exceeding expectations.
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$5,000+$50 - $99 / hr10 - 49Mississauga, Canada
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See all 14 projectsAsapp Studio is a mobile app development company specializing in iOS and Android platforms, consistently praised for their professional communication and project management. Reviewers reported a 100% satisfaction rate with their ability to understand project requirements and deliver successful applications. Their commitment and effective use of technologies like Swift and React Native have been highlighted by 80% of reviewers.
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$1,000+$50 - $99 / hr10 - 49Sydney, Australia
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See all 25 projectsVT Digital is a distinguished mobile app development company, focusing on both iOS and Android platforms. With a strong emphasis on user experience and technical precision, they maintain a 100% positive feedback rate. Clients laud their responsive project management, seamless app performance, and ability to align with brand identities, resulting in high engagement and retention rates.
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$5,000+$25 - $49 / hr2 - 9
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See all 4 projectsSmartitory is a company specializing in Mobile App Development, notably for iOS and Android platforms. Overall feedback from their clients is positive, highlighting their competitive pricing and effective communication. While timelines were occasionally extended, they provided advance notice, and users have expressed satisfaction with the app's impact on their daily lives.
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$5,000+$100 - $149 / hr10 - 49Palmerston North, New Zealand
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See all 2 projectsNodero is a software development company specializing in building complex, customized software solutions across various industries. The reviews indicate a strong emphasis on effective project management, high-quality deliverables, and excellent interpersonal communication, with around 90% of reviewers highlighting the team's professionalism and adaptability. However, a few clients have noted a desire for increased transparency in project progress updates.
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$50,000+$25 - $49 / hr10 - 49
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See all 1 projectsMIDAS Solutions is a versatile technology firm specializing in smart contract development and game-related software solutions. The company consistently delivers projects ahead of schedule, earning a 100% satisfaction rate from reviewers who commend their flexibility, extensive network, and client-oriented approach. Clients particularly appreciate their budget-friendly pricing and alignment with company values.
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$25,000+$25 - $49 / hr50 - 249Granite Bay, CA
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See all 7 projectsFullStack Labs is a reputable company specializing in Mobile App Development, particularly for iOS and Android. With a 100% positive feedback rate, clients commend their professionalism and expertise, reflected in five-star app ratings and significant downloads without marketing. Their communication and ongoing support are appreciated, despite occasional project delays due to high demand.
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Undisclosed< $25 / hr10 - 49Kolkata, India
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See all 6 projectsCoders Mind Pvt. Ltd. is a mobile app development company recognized for its expertise in creating secure, industry-standard platforms and applications. Reviewers consistently highlight the firm's ability to transform ideas into technical solutions, with 100% of feedback being positive and praising their timely delivery and effective communication.
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$10,000+$25 - $49 / hr50 - 249Rai Durg, India
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See all 13 projectsEnterPi is a mobile app development company known for creating both web and mobile applications. Their strengths lie in user-focused design and effective project management, as evidenced by a 90% on-time delivery rate. Reviewers commend their design skills and integrity, though some suggest improvements in code versioning.
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$25,000+$50 - $99 / hr10 - 49Nova Vodolaha, Ukraine
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See all 26 projects7Devs is a comprehensive mobile app development company, excelling in iOS and Android development. They are noted for their full-service approach, handling everything from UI/UX to backend and third-party integrations. Reviews highlight their strong communication skills and flexibility, with 90% of clients appreciating their cost-effectiveness and ability to adapt quickly to project changes. While minor language barriers are mentioned, these were swiftly resolved, demonstrating their commitment to client satisfaction.
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$5,000+$100 - $149 / hr10 - 49
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See all 19 projectsWaker is a dynamic company specializing in Mobile App Development, known for its expertise in crafting user-friendly and visually appealing applications. The reviews reflect overwhelmingly positive feedback, with approximately 100% satisfaction regarding their design and project management skills. Clients consistently praise Waker's ability to transform ideas into practical applications, appreciating their prompt and organized approach to project execution.
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$50,000+$50 - $99 / hr10 - 49Pasadena, CA
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See all 8 projectsSerious Development is a technology solutions provider specializing in developing customized software, web-based tools, and digital services. The company is highly praised for its dedication, creativity, and ability to deliver projects on time, which results in a 100% positive feedback rate. Clients consistently commend their project management skills, responsiveness, and capacity to align with business goals and enhance operational efficiency.
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$1,000+$25 - $49 / hr2 - 9Ciudad de Guatemala, Guatemala
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See all 7 projectsRedFox is a Mobile App Development company recognized for its ability to deliver wholly customized applications, with a particular focus on digitizing business processes for efficiency. Feedback highlights their quick understanding of client needs and effective project management, though some note a need for improved communication with less tech-savvy clients. Overall, 100% of reviewers express satisfaction, especially with RedFox's speed and customized solutions.
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$5,000+$100 - $149 / hr10 - 49Denver, CO
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See all 14 projectsNeon Rain Interactive is a versatile Mobile App Development company known for its expertise in creating custom applications and web solutions. They received overwhelmingly positive feedback, with an average rating of 4.5 out of 5, highlighting their exceptional quality, competitive pricing, and alignment with client values. Reviewers consistently praised their effective project management and ability to deliver complex projects efficiently.
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List of the Top 15 Cross Platform Application Development Companies
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$25,000+$25 - $49 / hr50 - 249Agoura Hills, CA
Ability to deliver
39.9/40.020/20 Reviews10/10 Clients & Experience9.9/10 Market PresenceService focus
50% Mobile App Development50% Hybrid & cross platform apps50% Other -
$5,000+$25 - $49 / hr250 - 999Jaipur, India
Ability to deliver
39.9/40.020/20 Reviews10/10 Clients & Experience9.9/10 Market PresenceService focus
60% Mobile App Development60% Hybrid & cross platform apps40% Other -
$10,000+$50 - $99 / hr250 - 999Greenville, SC
Ability to deliver
39.9/40.020/20 Reviews10/10 Clients & Experience9.9/10 Market PresenceService focus
60% Mobile App Development55% Hybrid & cross platform apps40% Other -
$10,000+$25 - $49 / hr50 - 249Warszawa, Poland
Ability to deliver
39.7/40.020/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
55% Mobile App Development50% Hybrid & cross platform apps45% Other -
$25,000+$50 - $99 / hr50 - 249Rzeszów, Poland
Ability to deliver
39.6/40.020/20 Reviews10/10 Clients & Experience9.6/10 Market PresenceService focus
50% Mobile App Development50% Hybrid & cross platform apps50% Other -
$25,000+$50 - $99 / hr50 - 249Warszawa, Poland
Ability to deliver
39.6/40.020/20 Reviews10/10 Clients & Experience9.6/10 Market PresenceService focus
80% Mobile App Development100% Hybrid & cross platform apps20% Other -
$25,000+$50 - $99 / hr50 - 249Hollywood, FL
Ability to deliver
39.5/40.020/20 Reviews10/10 Clients & Experience9.5/10 Market PresenceService focus
60% Mobile App Development50% Hybrid & cross platform apps40% Other -
$10,000+$50 - $99 / hr50 - 249Montevideo, Uruguay
Ability to deliver
39.3/40.020/20 Reviews10/10 Clients & Experience9.3/10 Market PresenceService focus
75% Mobile App Development80% Hybrid & cross platform apps25% Other -
$25,000+$50 - $99 / hr50 - 249Buenos Aires, Argentina
Ability to deliver
38.9/40.019.2/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
50% Mobile App Development60% Hybrid & cross platform apps50% Other -
$25,000+$25 - $49 / hr250 - 999Irving, TX
Ability to deliver
39.9/40.020/20 Reviews10/10 Clients & Experience9.9/10 Market PresenceService focus
30% Mobile App Development30% Hybrid & cross platform apps70% Other -
$25,000+< $25 / hr250 - 999Gurugram, India
Ability to deliver
39.7/40.020/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
30% Mobile App Development30% Hybrid & cross platform apps70% Other -
$5,000+< $25 / hr50 - 249Jaipur, India
Ability to deliver
39.8/40.020/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
50% Mobile App Development40% Hybrid & cross platform apps50% Other -
$5,000+$25 - $49 / hr250 - 999Surry Hills, Australia
Ability to deliver
40/40.020/20 Reviews10/10 Clients & Experience10/10 Market PresenceService focus
50% Mobile App Development25% Hybrid & cross platform apps50% Other -
$10,000+$25 - $49 / hr250 - 999Kolkata, India
Ability to deliver
39/40.020/20 Reviews9.8/10 Clients & Experience9.2/10 Market PresenceService focus
30% Mobile App Development35% Hybrid & cross platform apps70% Other -
$10,000+$25 - $49 / hr250 - 999San Francisco, CA
Ability to deliver
39.9/40.020/20 Reviews10/10 Clients & Experience9.9/10 Market PresenceService focus
25% Mobile App Development80% Hybrid & cross platform apps75% Other -
$10,000+$25 - $49 / hr50 - 249Indore, India
Ability to deliver
38.3/40.018.8/20 Reviews10/10 Clients & Experience9.5/10 Market PresenceService focus
50% Mobile App Development50% Hybrid & cross platform apps50% Other -
$10,000+$50 - $99 / hr50 - 249Ząbki, Poland
Ability to deliver
37.9/40.020/20 Reviews9.3/10 Clients & Experience8.7/10 Market PresenceService focus
75% Mobile App Development100% Hybrid & cross platform apps25% Other -
$1,000+< $25 / hr50 - 249Kolkata, India
Ability to deliver
37.9/40.018.6/20 Reviews10/10 Clients & Experience9.3/10 Market PresenceService focus
50% Mobile App Development50% Hybrid & cross platform apps50% Other -
Undisclosed$25 - $49 / hr250 - 999Dubai, United Arab Emirates
Ability to deliver
38.1/40.018.4/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
40% Mobile App Development30% Hybrid & cross platform apps60% Other -
$25,000+$50 - $99 / hr1,000 - 9,999Gliwice, Poland
Ability to deliver
38.7/40.019/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
20% Mobile App Development30% Hybrid & cross platform apps80% Other -
$10,000+$25 - $49 / hr250 - 999San Francisco, CA
Ability to deliver
40/40.020/20 Reviews10/10 Clients & Experience10/10 Market PresenceService focus
50% Mobile App Development20% Hybrid & cross platform apps50% Other -
$25,000+$50 - $99 / hr10 - 49London, England
Ability to deliver
37.2/40.018/20 Reviews10/10 Clients & Experience9.2/10 Market PresenceService focus
70% Mobile App Development70% Hybrid & cross platform apps30% Other -
$10,000+$50 - $99 / hr50 - 249Denver, CO
Ability to deliver
39.7/40.020/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
60% Mobile App Development30% Hybrid & cross platform apps40% Other -
$5,000+< $25 / hr50 - 249Indore, India
Ability to deliver
38.4/40.020/20 Reviews8.8/10 Clients & Experience9.6/10 Market PresenceService focus
55% Mobile App Development40% Hybrid & cross platform apps45% Other -
$25,000+$25 - $49 / hr50 - 249Miami, FL
Ability to deliver
36.9/40.017.6/20 Reviews10/10 Clients & Experience9.3/10 Market PresenceService focus
60% Mobile App Development50% Hybrid & cross platform apps40% Other -
$10,000+$50 - $99 / hr50 - 249Montevideo, Uruguay
Ability to deliver
39.5/40.020/20 Reviews10/10 Clients & Experience9.5/10 Market PresenceService focus
30% Mobile App Development60% Hybrid & cross platform apps70% Other -
$5,000+$25 - $49 / hr50 - 249Jaipur, India
Ability to deliver
38.8/40.019.2/20 Reviews10/10 Clients & Experience9.6/10 Market PresenceService focus
50% Mobile App Development35% Hybrid & cross platform apps50% Other -
$50,000+$150 - $199 / hr10 - 49Chicago, IL
Ability to deliver
36.7/40.017.4/20 Reviews10/10 Clients & Experience9.3/10 Market PresenceService focus
60% Mobile App Development60% Hybrid & cross platform apps40% Other -
$10,000+$150 - $199 / hr10 - 49Halifax, Canada
Ability to deliver
38.9/40.020/20 Reviews9/10 Clients & Experience9.9/10 Market PresenceService focus
40% Mobile App Development70% Hybrid & cross platform apps60% Other -
$50,000+$50 - $99 / hr1,000 - 9,999Warszawa, Poland
Ability to deliver
39.3/40.020/20 Reviews10/10 Clients & Experience9.3/10 Market PresenceService focus
15% Mobile App Development25% Hybrid & cross platform apps85% Other
Latest Cross Platform Articles
See all articles
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Known as app fatigue, users are increasingly annoyed by forced downloads and endless notifications. Clutch data dives into this trend to reveal what is...
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.