Top Cross Platform App Developers
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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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$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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$25,000+$50 - $99 / hr10 - 49
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See all 9 projectsAmoniac OU is a software development company specializing in custom web and app solutions, utilizing technologies such as Ruby on Rails and Golang. The overall feedback from their clients is overwhelmingly positive, highlighting their professionalism, effective communication, and impressive project management skills. Approximately 100% of reviewers commend their responsiveness and ability to deliver projects efficiently, often exceeding client expectations.
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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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$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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$1,000+< $25 / hr50 - 249
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See all 1 projectsNoorisys Technologies Pvt. Ltd. is a Mobile App Development company known for delivering high-quality cross-platform applications. Reviews highlight their impressive price-to-quality ratio and effective project management, with 100% of clients praising their flexibility and responsiveness. They are particularly commended for their honesty and post-project support, fixing any bugs or errors for free.
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$10,000+$25 - $49 / hr10 - 49Mumbai, India
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See all 26 projectsBig Rattle Technologies is a distinguished Mobile App Development company specializing in innovative solutions such as Android Development and iOS Development. Reviewers consistently praise their exceptional project management, responsiveness, and ability to customize solutions to clients' needs. Notably, 100% of reviewers highlight their prompt communication and successful project delivery, emphasizing their expertise in Mobile Software Development and client-centric approach.
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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+$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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$25,000+$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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$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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$10,000+$25 - $49 / hr10 - 49Yerevan, Armenia
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See all 15 projectsConcept Studio offers comprehensive services including Mobile App Development, website creation, and full-scale branding. Reviews highlight their exceptional communication, timely delivery, and precise project management. Clients appreciate their ability to guide startups from inception through to funding and final application development, demonstrating a strong fit for Mobile App Dev projects involving both iOS and Android platforms.
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$10,000+$100 - $149 / hr50 - 249West Hollywood, CA
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See all 10 projectsKing Tide is a Mobile App Development company that specializes in creating custom mobile applications and admin portals. The company has been praised for its flexibility and strong project management skills, with 100% of reviewers highlighting their impressive communication and adaptability. A key strength is their ability to cater to unique client needs, ensuring successful project outcomes.
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$5,000+< $25 / hr10 - 49Ahmedabad, India
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See all 27 projectsNIVIDATA CONSULTANCY is a Mobile App Development company specializing in creating Android and iOS applications. With a team of 2-5 employees, the company is consistently praised for its efficiency, responsiveness, and excellent project management. The reviews indicate 100% satisfaction, highlighting the company's ability to deliver high-quality mobile application solutions within tight timeframes.
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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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$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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$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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$10,000+$50 - $99 / hr10 - 49
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See all 12 projectsCherrypick Agency is a Mobile App Development company specializing in creating user-friendly and efficient applications using Flutter and other technologies. Their services have been positively received, with over 90% satisfaction noted across reviews for their project management, technical expertise, and ability to deliver on time, resulting in increased efficiency, engagement, and cost reduction for clients.
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$5,000+$50 - $99 / hr10 - 49Karachi, Pakistan
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See all 12 projectsTezeract is a Mobile App Development company that specializes in creating AI-powered applications and providing end-to-end solutions for both iOS and Android platforms. The reviews reveal a commitment to timely delivery, effective communication, and quality service, with approximately 80% of feedback highlighting their expertise in mobile app development and project management. Clients appreciate their responsiveness and ability to deliver cost-effective solutions.
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$25,000+$50 - $99 / hr50 - 249Kraków, Poland
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See all 3 projectsdmt Software House Sp. z o.o is a software development company specializing in integration services and automation solutions, particularly for the financial sector. Overall, the reviews highlight their flexibility, deep industry knowledge, and ability to meet client-specific requirements. Over 80% of reviewers praise their experience and adaptability, while agile project management and effective communication are consistent positive themes across feedback.
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$5,000+$25 - $49 / hr10 - 49Chennai, India
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See all 8 projectsSiam Computing is a dynamic company specializing in Mobile App Development and web solutions. Reviews highlight their professionalism, collaborative approach, and competitive pricing, with positive feedback on meeting deadlines and delivering quality results. While 100% of reviews commend their talent and communication, some suggest improvements in setting boundaries and transparency regarding resource changes.
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$5,000+$25 - $49 / hr10 - 49Jaipur, India
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See all 10 projectsAleaIT Solutions Pvt. Ltd. is a Mobile App Development company known for delivering high-quality mobile applications for both iOS and Android platforms. Across various projects, they have been praised for their exceptional project management and responsiveness, with nearly 90% of reviews highlighting their ability to meet deadlines and align with client needs. Many clients appreciate their proactive problem-solving and the value they offer, although some note minor areas for improvement in post-launch support and documentation.
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$10,000+$50 - $99 / hr50 - 249Kraków, Poland
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See all 16 projectsApplandeo is a mobile app development company specializing in comprehensive solutions, including iOS and Android development. Reviews reveal a consistent theme of professionalism and seamless integration with clients' teams, with 100% of reviewers commending their expertise and communication. Their agile approach and transparency contribute to successful project outcomes, although a few clients noted room for improvement in timeline management.
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$5,000+$25 - $49 / hr50 - 249Pune, India
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See all 9 projectsPrometteur Solutions PVT LTD is a Mobile App Development company specializing in iOS and Android development, as well as web development. The company is praised for its timely delivery, proactive communication, and high expertise, with 100% of reviewers highlighting their responsiveness and customer-focused approach. Their ability to address complex issues and provide a broad range of services is consistently recognized.
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$1,000+< $25 / hr50 - 249Delhi, India
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See all 2 projectsTechnoScore is a web development company known for its strong technical skills and flexible, transparent approach. Reviewers consistently praise their agile methodology and friendly environment. Notably, 100% of the feedback highlights their project management style and communication, with no recommendations for improvement mentioned.
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$25,000+$50 - $99 / hr10 - 49Medellín, Colombia
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See all 1 projectsAdintelo is a software and mobile app development company known for their expertise in Angular, React, and Python, among other technologies. Reviews highlight their impressive skills and service attitude, with 100% positive feedback on their problem-solving capabilities and project management. Clients recommend clear communication to ensure successful project outcomes.
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$1,000+$25 - $49 / hr50 - 249Ahmedabad, India
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See all 29 projectsThe One Technologies is a distinguished Mobile App Development company specializing in creating mobile applications with comprehensive services, including UI/UX design and ongoing support. Across multiple reviews, 100% of clients praised their exceptional project management, proactive problem-solving, and dedication to exceeding expectations, highlighting their reliability and commitment to client satisfaction.
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$5,000+< $25 / hr50 - 249Jaipur, India
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See all 5 projectsWeDigTech is a mobile app development company offering services in iOS and Android development. The company is praised for its professionalism, communication, and effective project management, with 100% of reviewers noting their responsiveness and ability to work closely with clients. Customers highlighted their technical expertise and willingness to exceed project expectations, resulting in high-quality apps with positive user feedback.
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List of the Top 15 Cross Platform Application Development Companies
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$50,000+$50 - $99 / 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 -
$25,000+$25 - $49 / hr50 - 249Warszawa, Poland
Ability to deliver
39.7/40.020/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
60% Mobile App Development50% Hybrid & cross platform apps40% 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
39.2/40.020/20 Reviews10/10 Clients & Experience9.2/10 Market PresenceService focus
50% Mobile App Development50% Hybrid & cross platform apps50% Other -
$10,000+$50 - $99 / hr50 - 249Montevideo, Uruguay
Ability to deliver
39.2/40.020/20 Reviews10/10 Clients & Experience9.2/10 Market PresenceService focus
75% Mobile App Development80% Hybrid & cross platform apps25% Other -
$10,000+$25 - $49 / hr50 - 249Indore, India
Ability to deliver
38.9/40.019.6/20 Reviews10/10 Clients & Experience9.3/10 Market PresenceService focus
60% Mobile App Development50% Hybrid & cross platform apps40% 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 -
$5,000+< $25 / hr50 - 249Jaipur, India
Ability to deliver
39.8/40.020/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
60% Mobile App Development40% Hybrid & cross platform apps40% 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+$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 -
$50,000+$150 - $199 / hr10 - 49Chicago, IL
Ability to deliver
37.9/40.018.6/20 Reviews10/10 Clients & Experience9.3/10 Market PresenceService focus
60% Mobile App Development60% Hybrid & cross platform apps40% Other -
$50,000+$50 - $99 / hr1,000 - 9,999L'viv, Ukraine
Ability to deliver
38.8/40.019/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
21% Mobile App Development35% Hybrid & cross platform apps79% Other -
$25,000+$50 - $99 / hr50 - 249Buenos Aires, Argentina
Ability to deliver
38.8/40.019.2/20 Reviews10/10 Clients & Experience9.6/10 Market PresenceService focus
40% Mobile App Development60% Hybrid & cross platform apps60% Other -
$5,000+$25 - $49 / hr50 - 249Jaipur, India
Ability to deliver
39.3/40.019.8/20 Reviews10/10 Clients & Experience9.6/10 Market PresenceService focus
50% Mobile App Development35% Hybrid & cross platform apps50% Other -
$50,000+$25 - $49 / hr250 - 999San Francisco, CA
Ability to deliver
39.8/40.020/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
50% Mobile App Development20% Hybrid & cross platform apps50% Other -
$25,000+$25 - $49 / hr50 - 249Miami, FL
Ability to deliver
37.1/40.017.8/20 Reviews10/10 Clients & Experience9.3/10 Market PresenceService focus
60% Mobile App Development50% Hybrid & cross platform apps40% Other -
Undisclosed$25 - $49 / hr250 - 999Dubai, United Arab Emirates
Ability to deliver
37.7/40.018/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
40% Mobile App Development30% Hybrid & cross platform apps60% Other -
$5,000+< $25 / hr250 - 999Hanoi, Vietnam
Ability to deliver
38.3/40.020/20 Reviews10/10 Clients & Experience8.3/10 Market PresenceService focus
30% Mobile App Development30% Hybrid & cross platform apps70% 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 - $49 / hr1,000 - 9,999Noida, India
Ability to deliver
37.1/40.020/20 Reviews10/10 Clients & Experience7.1/10 Market PresenceService focus
30% Mobile App Development25% Hybrid & cross platform apps70% 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
80% Mobile App Development40% Hybrid & cross platform apps20% Other -
$25,000+$50 - $99 / hr50 - 249Dubai, United Arab Emirates
Ability to deliver
39.1/40.019.8/20 Reviews10/10 Clients & Experience9.3/10 Market PresenceService focus
55% Mobile App Development33% Hybrid & cross platform apps45% Other -
$1,000+< $25 / hr50 - 249Kolkata, India
Ability to deliver
38.1/40.018.8/20 Reviews10/10 Clients & Experience9.3/10 Market PresenceService focus
40% Mobile App Development50% Hybrid & cross platform apps60% Other -
$25,000+$25 - $49 / hr250 - 999Austin, TX
Ability to deliver
39.4/40.019.8/20 Reviews10/10 Clients & Experience9.6/10 Market PresenceService focus
20% Mobile App Development50% Hybrid & cross platform apps80% 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
Latest Cross Platform Articles
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Most Popular Mobile Apps for Project Management and Organization
Discover the most popular mobile apps for project management and organization in this Clutch article. Find out about their benefits and how to maximize them...
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.