Top Kotlin Developers
Kotlin has become the preferred language for Android development and is rapidly expanding into backend services and multiplatform applications. Its concise syntax, null safety, and full interoperability with Java make it a practical choice for teams modernizing existing codebases or building new products from scratch.
Kotlin developers on Clutch are vetted through a verified review process, so you can compare firms based on real client outcomes — not just self-reported credentials. These companies build native Android applications, server-side systems using Ktor or Spring Boot, and cross-platform solutions with Kotlin Multiplatform (KMP). Related directories: Android app development companies, mobile app development companies, and the full Kotlin developers directory.
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$5,000+$50 - $99 / hr10 - 49Herriman, UT
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Lambdo is a custom software development firm. Their small team of employees is headquartered in Herriman, Utah. Their team focuses on Custom Software Development and Web Development.
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$5,000+$25 - $49 / hr10 - 49Wilmington, DE
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See all 2 projectsDid you know that 68% of MVPs fail within months of launch? According to IssueWire, most teams are not focused on building a single service in MVP. Budgets blow up. Deadlines slip. Sound
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$10,000+$25 - $49 / hr50 - 249Khmel'nyts'kyi, Ukraine
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See all 56 projectsStfalcon is a distinguished provider specializing in Custom Software Creation and Full Stack Software Development. The company has consistently garnered positive feedback, with approximately 95% of reviews highlighting their strong engineering capabilities, reliable project management, and customer-focused approach. Clients appreciate their ability to deliver secure, scalable solutions on time, though some note that having experienced project management on the client side can enhance collaboration.
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$100,000+$50 - $99 / hr250 - 999San Francisco, CA
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See all 37 projectsArcTouch is a custom software development company specializing in mobile app creation, offering services from initial design to end-to-end software development. Reviews highlight their professionalism, customer service, and ability to integrate seamlessly with clients' teams, with 100% of reviewers praising their project management and communication. While some noted the need for consistent team assignments, ArcTouch consistently delivers high-quality, tailored software development solutions on time and within budget.
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$25,000+$25 - $49 / hr250 - 999Lakeville, MN
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See all 63 projectsExcellent Webworld is a Custom Software Creation company renowned for Full Stack Software Development services, including mobile and web applications. Collectively, reviews highlight their exceptional project management, timely delivery, and innovative solutions, with 100% of reviewers praising their communication skills and customer satisfaction. Their adeptness in tailoring software solutions and responsiveness to client needs are consistently commended.
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$25,000+$25 - $49 / hr250 - 999Irving, TX
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See all 262 projectsBrainvire Infotech Inc is a comprehensive software development company specializing in custom and full-stack software development and engineering. Overall, reviews highlight their efficient project management and timely delivery, with 70% of clients impressed by their responsiveness and communication. However, some feedback suggests occasional communication challenges and documentation issues. Their services are well-regarded, with a consistent record of meeting project goals and providing tailored software solutions.
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$50,000+$100 - $149 / hr50 - 249Los Angeles, CA
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See all 36 projectsCitrusBits is a bespoke software development company specializing in tailored software solutions, including custom software creation and full-stack software development. Client reviews highlight their responsiveness and expertise, with a 100% satisfaction rate and commendations for their ability to deliver user-friendly, high-quality software on time and within budget. Approximately 75% of reviewers emphasize their impressive project management and communication skills.
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$25,000+$25 - $49 / hr50 - 249Vinnytsia, Ukraine
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See all 40 projectsLampa Software is a Custom Software Creation company providing tailored software development services, including mobile and web applications, AI concierge features, and SaaS products. Across the reviews, 100% of clients commend their professionalism, expertise, and responsiveness. Approximately 83% highlight the company's cultural fit and alignment with client values as key strengths. Feedback consistently notes timely delivery and high-quality results, although some suggest improved project management visibility.
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$50,000+$50 - $99 / hr50 - 249București, Romania
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See all 12 projectsessensys { mReady is a renowned provider of tailored software development services, specializing in creating custom mobile and web applications. The company consistently receives positive feedback, achieving a 4.5-star app store rating and a 90% customer satisfaction score. Clients praise their agile project management, clear communication, and innovative solutions, highlighting their exceptional attention to detail and responsiveness to client needs.
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$5,000+$25 - $49 / hr250 - 999New York, NY
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See all 70 projectsUplineSoft is a full stack software development company specializing in tailored software solutions across diverse industries, particularly excelling in custom software creation for complex systems. The company receives overwhelmingly positive feedback, with approximately 90% of clients highlighting their expertise in areas such as agile project management and user-friendly interface design. Many reviewers commend UplineSoft’s innovative solutions and adherence to compliance standards.
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$25,000+$25 - $49 / hr50 - 249Agoura Hills, CA
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See all 121 projectsTechAhead is a leading custom software development company specializing in bespoke software creation and full-stack software development solutions. Client reviews reflect a strong reputation for meeting timelines and budget expectations, with a consistent rating of high satisfaction. Approximately 90% of clients praise their project management, responsiveness, and skilled team. The majority of feedback highlights TechAhead's impressive ability to accommodate client needs and deliver innovative solutions, although some suggest improvements in initial time estimates and testing processes.
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$10,000+$25 - $49 / hr250 - 999Kolkata, India
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See all 103 projectsWebskitters is a Custom Software Development company that specializes in tailored software solutions, including mobile apps, back-end systems, and integrations for diverse industries. Across the reviews, 100% of clients praised their project management and timely delivery. A recurring theme is their responsiveness and ability to understand complex client needs, with 80% of reviewers highlighting their effective communication and core values.
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$50,000+$25 - $49 / hr250 - 999Schaumburg, IL
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See all 47 projectsWEZOM is a custom software development firm specializing in bespoke software creation, managed software development, and end-to-end software engineering services. Across various reviews, the company is praised for its technical expertise, effective communication, and the ability to deliver projects on time, with approximately 85-90% user adoption and a 100% satisfaction rate in timely delivery and communication. Reviewers frequently note the team's responsiveness and organizational skills as standout qualities.
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$25,000+$50 - $99 / hr10 - 49Łódź, Poland
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See all 38 projectsFiveDotTwelve is a bespoke software development company specializing in tailored software creation and end-to-end software development. Reviewers consistently praise their technical expertise, exceptional project management, and timely delivery, with a 100% satisfaction rate and no significant areas for improvement noted. Approximately 80% of reviewers highlight their excellent communication and dedication to client needs.
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$25,000+$50 - $99 / hr50 - 249Salford, England
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See all 51 projectsDigiryte is a bespoke software development company specializing in custom software creation and full-stack software development solutions. With a focus on delivering tailored, high-quality software, they have achieved a 100% satisfaction rate among clients. Reviewers praise their excellent project management, responsiveness, and ability to deliver innovative solutions on time. Notably, 80% of their reviews highlight their adaptability to client needs and proactive communication.
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$25,000+$25 - $49 / hr250 - 999San Francisco, CA
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See all 14 projectsSDLC Corp specializes in Custom Software Development and offers tailored and end-to-end software solutions. As reflected in their reviews, the company is highly praised for its technical expertise, responsiveness, and structured project management. Approximately 85% of reviewers commend SDLC Corp for their ability to understand client needs and provide support, while about 10% suggest improvements in initial user training.
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$5,000+$25 - $49 / hr50 - 249Jaipur, India
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See all 60 projectsInventco Software is a custom software development firm, excelling in tailored software creation and full-stack development services. Across reviews, they consistently receive high praise for their responsiveness, flexibility, and project management capabilities, with approximately 90% of clients expressing satisfaction with their service delivery and the quality of their bespoke software solutions. Many reviews highlight their ability to adapt and address client needs efficiently.
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Undisclosed$25 - $49 / hr250 - 999Dubai, United Arab Emirates
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See all 30 projectsTrango Tech is a custom software creation company that excels in developing tailored software solutions. With a focus on accommodating client needs and aligning with company values, they receive positive feedback for their timely project delivery and effective communication. Of the reviews provided, 100% praised the flexibility and professionalism of project manager Jane M.
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$5,000+$25 - $49 / hr50 - 249Hong Kong, Hong Kong
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See all 30 projectsFora Soft is a bespoke software development company excelling in custom software creation, particularly in video streaming and communication solutions. Reviews highlight their impressive technical expertise and commitment to understanding client needs, with 95% of feedback being positive. Their project management is praised for being organized and responsive, though occasional improvements in documentation and language barriers are noted.
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$25,000+$50 - $99 / hr250 - 999Jaipur, India
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See all 123 projectsThe NineHertz is a custom software development company specializing in tailored software creation and full-stack development services. Reviews indicate an overall positive experience, with a focus on practical solutions and client satisfaction. Approximately 80% of reviews highlight their responsiveness and project management skills, though some suggest improvements in communication and timelines. They are commended for their technical expertise and end-to-end software development capabilities.
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$5,000+$50 - $99 / hr250 - 999McKinney, TX
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See all 42 projectsScienceSoft is a prominent company specializing in Custom Software Development, offering services such as full-stack development and end-to-end software solutions. The reviews reflect a positive sentiment, highlighting their expertise and responsiveness. Approximately 90% of reviewers praised their project management and ability to meet deadlines. Many noted the company's skill in delivering high-quality, tailored software solutions while efficiently scaling resources to meet project needs.
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$25,000+$50 - $99 / hr250 - 999Austin, TX
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See all 25 projectsMMC Global, a custom software development company, excels in creating tailored software solutions that enhance operational efficiency and streamline workflows. They consistently receive positive feedback for their technical expertise and project management, with 100% of reviews highlighting their timely delivery and effective communication. Clients appreciate their ability to balance technical capabilities with a deep understanding of specific operational needs.
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$50,000+$50 - $99 / hr250 - 999Austin, TX
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See all 15 projectsCody Solutions is a custom software development company specializing in tailored software engineering and end-to-end software development solutions. They have received overwhelmingly positive reviews, with 95% of clients highlighting their timely delivery and strong project management. Reviewers frequently commend their technical expertise, flexibility, and seamless collaboration in complex, multi-stakeholder environments.
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$25,000+$25 - $49 / hr250 - 999Oslo, Norway
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See all 49 projects99x is a Custom Software Development company specializing in tailored software creation and end-to-end software solutions. Across their reviews, 99x is praised for their professionalism, timely delivery, and high-quality work. Approximately 100% of reviews express satisfaction with their communication and project management, indicating a strong culture fit and commitment to their clients’ needs.
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$250,000+$50 - $99 / hr250 - 999Broomfield, CO
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See all 23 projectsGorilla Logic is a custom software development company that excels in providing tailored software solutions and staff augmentation services. Across their reviews, 100% of clients praise their strong project management skills and ability to integrate seamlessly with in-house teams, with 80% highlighting their impressive software engineering capabilities and responsiveness. Gorilla Logic is frequently commended for fostering strategic partnerships rather than merely executing tasks.
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$100,000+$100 - $149 / hr50 - 249Newcastle upon Tyne, England
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See all 82 projectshedgehog lab is a Custom Software Development company that offers tailored software solutions, including app and web development, with an emphasis on end-to-end software engineering. The reviews reveal a strong theme of collaboration and adaptability, with clients appreciating their strategic mindset and flexibility. Approximately 90% of feedback is positive, highlighting their ability to immerse themselves in projects and deliver innovative, high-quality solutions.
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$10,000+$25 - $49 / hr50 - 249
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See all 2 projectsQuickworks is a Custom Software Development company specializing in creating comprehensive delivery platforms and applications. They have received predominantly positive feedback, with clients praising their ability to deliver projects on time and their strong work ethics, though some noted improvements could be made in application design. Approximately 90% of feedback highlights their effective communication and project understanding.
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$10,000+< $25 / hr50 - 249Mumbai, India
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See all 48 projectsWDI | Mobile App Development is a bespoke software development company specializing in custom software creation, including UI design and project management software. With a strong emphasis on timely delivery and effective communication, WDI has garnered overwhelmingly positive reviews, with over 80% of feedback highlighting their speed, professionalism, and quality. Clients consistently commend their ability to meet complex project needs and deliver excellent value.
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$10,000+$50 - $99 / hr250 - 999Bellevue, WA
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See all 36 projects9series Inc is a custom software development firm known for its tailored software creation and full stack software development services. Reviews highlight their strong project management, flexibility, and commitment, with over 80% of feedback being positive. Clients commend their agile methodologies and communication, though some suggest improvements in design expertise and geographical presence.
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$25,000+$25 - $49 / hr50 - 249Kyiv, Ukraine
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See all 43 projectsUptech is a custom software development company excelling in tailored software creation and full-stack software development. With a strong focus on delivering high-quality, client-specific solutions, Uptech has received overwhelmingly positive feedback, with 100% of reviewers highlighting their impressive project management, communication skills, and ability to bring innovative ideas to life. Clients consistently commend their professionalism and commitment to understanding business needs.
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$25,000+$50 - $99 / hr250 - 999Austin, TX
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See all 8 projectsX-Team is a prominent provider of custom software development and managed software development services. They have consistently delivered high-quality engineers who integrate seamlessly into clients' teams, as noted by reviews stating the exceptional quality and quick onboarding speed of their engineers. Approximately 100% of reviewers praised X-Team's project management capabilities and responsiveness, highlighting their commitment to understanding and meeting client needs effectively.
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$10,000+$25 - $49 / hr250 - 999Warszawa, Poland
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See all 19 projectsSENLA is a full-stack software development company specializing in custom software creation and tailored software development solutions. Reviews highlight their deep understanding of client needs and commitment to delivering customized solutions. They are praised for their excellent communication, professional approach, and ability to adapt to project requirements. With a high level of customer satisfaction noted in 100% of reviews, SENLA consistently meets or exceeds client expectations across various sectors.
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$10,000+$50 - $99 / hr50 - 249New York, NY
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See all 27 projectsSEVEN is a versatile custom software development company, specializing in end-to-end and tailored software solutions. Reviews indicate a high level of client satisfaction, with approximately 90% positive feedback highlighting their project management, communication, and ability to deliver complex projects on time and within budget. Noteworthy mentions include their expertise in full stack software development and their commitment to client-driven solutions, as emphasized by 75% of reviewers.
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$10,000+$25 - $49 / hr1,000 - 9,999Hanoi, Vietnam
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See all 47 projectsSOTATEK JSC, a renowned Custom Software Development provider, consistently delivers impressive tailored solutions across various industries, including IoT, blockchain, and CRM platforms. Approximately 100% of the reviews praise their timely project management, innovative approach, and effective communication. Clients frequently highlight their commitment to deadlines and high-quality deliverables, making them a reliable partner for bespoke software engineering needs.
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$10,000+$25 - $49 / hr250 - 999Kuala Lumpur, Malaysia
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See all 56 projectsInvoZone is a Custom Software Creation company specializing in tailored solutions like AI integration, web development, and digital transformation across various industries. Overall, 90% of reviewers praised their technical expertise, professionalism, and responsiveness, with 75% noting their strong project management and commitment to client success in end-to-end software development initiatives.
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$10,000+$100 - $149 / hr250 - 999Brooklyn, NY
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See all 36 projectsFive, an Endava company, is a distinguished Custom Software Creation firm specializing in Full Stack and Tailored Software Development. Their clients consistently praise their expertise in software engineering and project management, with 90% highlighting their ability to deliver projects on time and within budget. Reviewers frequently commend Five's innovative approach, with over 70% noting their commitment to understanding client needs and providing bespoke solutions.
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$50,000+$25 - $49 / hr250 - 999Toronto, Canada
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See all 52 projectsNet Solutions is a custom software development company specializing in bespoke software creation and full-stack software development. The company receives overwhelmingly positive feedback, with approximately 90% of reviews highlighting their effective project management, excellent communication, and technical prowess. Clients frequently commend Net Solutions for their ability to understand customer needs, provide tailored solutions, and deliver projects within budget and timelines.
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$10,000+$50 - $99 / hr10 - 49Atlanta, GA
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See all 23 projectsAppZoro Technologies, Inc. is a full stack software development company specializing in bespoke software creation, excelling in mobile and web-based solutions. Reviewers consistently praise their project management, timely delivery, and responsive communication. With over 80% of reviews highlighting their effective collaboration and customer-first approach, AppZoro stands out for its dedication to understanding client needs and delivering tailored solutions.
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$5,000+$25 - $49 / hr50 - 249Jaipur, India
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See all 17 projectsMtoag Technologies Pvt LTD. is a versatile company specializing in Custom Software Creation and End-to-end Software Development. Reviews indicate a strong positive sentiment, with about 90% of feedback highlighting their impressive technical expertise and effective project management. Clients appreciate their ability to deliver tailored solutions, with approximately 80% noting their successful communication and collaboration.
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$10,000+< $25 / hr250 - 999Gurugram, India
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See all 14 projectsDew Solutions Pvt Ltd is a Custom Software Development company that excels in Full Stack Software Development, offering tailored solutions across various industries. Reviews highlight their exceptional project management, transparency, and commitment to customer success, with over 90% of feedback praising their professionalism and ability to deliver quality work efficiently. Areas for improvement include competitive pricing, but clients consistently note their impressive ideation and approach to solutions.
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$5,000+$25 - $49 / hr50 - 249Los Angeles, CA
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See all 40 projectsDifferenz System is a custom software development company specializing in tailored and bespoke software solutions. Reviews indicate a strong emphasis on delivering projects on time, with a 100% satisfaction rate noted for responsiveness and quality of work. Many clients commend their problem-solving skills and commitment to project success, particularly in end-to-end software development and software engineering.
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$1,000+$25 - $49 / hr10 - 49L'viv, Ukraine
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See all 10 projectsNineva Studios is a bespoke software development company specializing in custom software creation, with a strong focus on game development and interactive experiences. Reviews highlight their exceptional project management and technical proficiency, with 100% of feedback praising their responsiveness and commitment to delivering tailored, high-quality solutions on time. Their innovative approach and expert handling of complex technical projects are consistently recognized by clients.
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$10,000+$25 - $49 / hr50 - 249Greenwood, IN
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See all 27 projectsApptechies is a custom software development company specializing in tailored software development solutions, including web, mobile, and admin interfaces. They have received overwhelmingly positive feedback, with clients praising their responsiveness, professionalism, and commitment to client satisfaction. Notably, 100% of reviewers highlighted their effective project management and creativity, contributing to successful partnerships and exceeding client expectations.
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$25,000+$50 - $99 / hr50 - 249Wilmington, DE
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See all 43 projectsSurf is a bespoke software development company specializing in custom software creation and full-stack software development. They are commended for their proactive approach, professionalism, and timely delivery, with 100% positive feedback emphasizing their expertise and effectiveness in managing complex projects. Reviewers consistently highlight Surf's collaborative spirit and innovative problem-solving capabilities.
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$25,000+$50 - $99 / hr50 - 249Ahmedabad, India
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See all 13 projectsCapermint Technologies is a versatile app development company that excels in creating mobile applications, game development, and interactive learning platforms. Their reviews reflect a 95% client satisfaction with their professional service, commitment to understanding client goals, and high-quality deliverables. Notably, 80% of reviewers commend their effective communication and collaborative approach, while 70% highlight their innovative solutions and adaptability to client needs.
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$25,000+$50 - $99 / hr50 - 249London, England
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See all 35 projectsImaginary Cloud is a software development company specializing in custom and tailored software creation, including web and mobile applications. Reviewers consistently highlight their strong communication, customer-centric approach, and ability to deliver projects on time and within budget. Approximately 90% of feedback emphasizes their impressive project management and technical skills, while about 70% mention their excellent cultural fit and value for cost.
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$10,000+$25 - $49 / hr50 - 249San Antonio, TX
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See all 10 projectsTowa - Nearshore Software Excellence is a distinguished company in the realm of custom software development, offering tailored solutions across various industries. With a 100% positive feedback rate, clients commend Towa for their commitment to quality, timely delivery, and a collaborative approach. Approximately 80% of reviewers highlight their cultural fit and alignment with company values as key strengths, underscoring their expertise in software engineering.
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$5,000+$25 - $49 / hr10 - 49
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See all 16 projectsBladeware is a Custom Software Development company specializing in tailored software solutions, including mobile and web applications. The reviews consistently highlight their effective project management, transparent communication, and ability to deliver projects on time, with 100% positive feedback on their communication skills. However, there were minor areas for improvement in QA processes noted by a small percentage of clients.
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$25,000+$50 - $99 / hr250 - 999Manhattan Beach, CA
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See all 14 projectsDistillery is a custom software development firm offering tailored and end-to-end software development services, including app development, data science, and staff augmentation. Reviews indicate high satisfaction, highlighting their experienced developers and high-quality code, with 80% of reviewers expressing appreciation for their professionalism and project management. However, some noted areas for improvement in communication and expanding technical expertise. Overall, Distillery is recognized for their comprehensive service and talent.
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$25,000+$25 - $49 / hr1,000 - 9,999Antipolo, Philippines
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See all 14 projectsIntelegencia is a full stack software development company specializing in tailored software development and IT infrastructure management. Reviews indicate high satisfaction with their custom software creation and DevOps services, with 100% positive feedback about their project management and integration into client teams. Their attentive and knowledgeable service, alongside strong cultural alignment, enhances client operations and product delivery.
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List of the Top 15 Kotlin Development Services
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$50,000+$50 - $99 / hr50 - 249Brno, Czech Republic
Ability to deliver
39.3/40.020/20 Reviews10/10 Clients & Experience9.3/10 Market PresenceService focus
15% Web Development75% Mobile App Development10% Other -
$10,000+$25 - $49 / hr250 - 999San Francisco, CA
Ability to deliver
40/40.020/20 Reviews10/10 Clients & Experience10/10 Market PresenceService focus
35% Custom Software Development25% Kotlin5% Web Development40% Mobile App Development20% Other -
$75,000+$50 - $99 / hr50 - 249Wrocław, Poland
Ability to deliver
39/40.019.2/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
10% Custom Software Development40% Kotlin80% Mobile App Development10% Other -
$25,000+$25 - $49 / hr250 - 999New York, NY
Ability to deliver
40/40.020/20 Reviews10/10 Clients & Experience10/10 Market PresenceService focus
45% Mobile App Development55% Other -
$50,000+$25 - $49 / hr250 - 999Warszawa, Poland
Ability to deliver
40/40.020/20 Reviews10/10 Clients & Experience10/10 Market PresenceService focus
40% Custom Software Development20% Kotlin10% Web Development20% Mobile App Development30% Other -
$10,000+$25 - $49 / hr50 - 249Limassol, Cyprus
Ability to deliver
40/40.020/20 Reviews10/10 Clients & Experience10/10 Market PresenceService focus
40% Custom Software Development30% Kotlin50% Mobile App Development10% Other -
$10,000+$25 - $49 / hr50 - 249Khmel'nyts'kyi, Ukraine
Ability to deliver
37.1/40.017.2/20 Reviews10/10 Clients & Experience9.9/10 Market PresenceService focus
30% Custom Software Development50% Kotlin40% Mobile App Development30% Other -
$25,000+$50 - $99 / hr50 - 249Wrocław, Poland
Ability to deliver
36.9/40.017.2/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
40% Mobile App Development20% AR/VR Development40% 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
10% Custom Software Development30% Kotlin10% Web Development60% Mobile App Development20% Other -
$25,000+$50 - $99 / hr50 - 249Karlín, Czech Republic
Ability to deliver
38.8/40.019.2/20 Reviews10/10 Clients & Experience9.6/10 Market PresenceService focus
30% Web Development60% Mobile App Development10% Other -
$100,000+$50 - $99 / hr250 - 999San Francisco, CA
Ability to deliver
38/40.018/20 Reviews10/10 Clients & Experience10/10 Market PresenceService focus
10% Web Development20% Mobile App Development70% Other -
$25,000+$25 - $49 / hr250 - 999Lakeville, MN
Ability to deliver
37/40.017.2/20 Reviews9.9/10 Clients & Experience9.9/10 Market PresenceService focus
15% Custom Software Development30% Kotlin10% Web Development10% Mobile App Development15% Enterprise App Modernization50% Other -
$10,000+< $25 / hr50 - 249New Delhi, India
Ability to deliver
40/40.020/20 Reviews10/10 Clients & Experience10/10 Market PresenceService focus
25% Custom Software Development23% Kotlin15% Web Development25% Mobile App Development35% 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
10% Web Development30% Mobile App Development60% Other -
$25,000+$100 - $149 / hr10 - 49Montréal, Canada
Ability to deliver
37.3/40.017.8/20 Reviews10/10 Clients & Experience9.5/10 Market PresenceService focus
20% Custom Software Development50% Kotlin20% Web Development40% Mobile App Development20% Other -
$5,000+$25 - $49 / hr250 - 999Jaipur, India
Ability to deliver
39.8/40.020/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
10% Web Development60% Mobile App Development30% Other -
$50,000+$100 - $149 / hr50 - 249Los Angeles, CA
Ability to deliver
36/40.016.4/20 Reviews10/10 Clients & Experience9.6/10 Market PresenceService focus
20% Custom Software Development55% Kotlin40% Mobile App Development30% AR/VR Development10% Other -
$25,000+$25 - $49 / hr50 - 249Vinnytsia, Ukraine
Ability to deliver
38.6/40.019/20 Reviews10/10 Clients & Experience9.6/10 Market PresenceService focus
30% Web Development70% Mobile App Development -
$5,000+$25 - $49 / hr50 - 249Cluj-Napoca, Romania
Ability to deliver
39/40.019.4/20 Reviews10/10 Clients & Experience9.6/10 Market PresenceService focus
20% Web Development50% Mobile App Development30% Other -
$25,000+$50 - $99 / hr50 - 249Warszawa, Poland
Ability to deliver
37/40.017.4/20 Reviews10/10 Clients & Experience9.6/10 Market PresenceService focus
50% Custom Software Development40% Kotlin50% Mobile App Development -
$10,000+$50 - $99 / hr50 - 249Cluj-Napoca, Romania
Ability to deliver
39.6/40.020/20 Reviews10/10 Clients & Experience9.6/10 Market PresenceService focus
45% Web Development45% Mobile App Development10% Other -
$50,000+$50 - $99 / hr50 - 249București, Romania
Ability to deliver
36.8/40.017.4/20 Reviews10/10 Clients & Experience9.4/10 Market PresenceService focus
15% Web Development65% Mobile App Development20% Other -
$5,000+$25 - $49 / hr50 - 249L'viv, Ukraine
Ability to deliver
38.1/40.018.6/20 Reviews10/10 Clients & Experience9.5/10 Market PresenceService focus
35% Web Development35% Mobile App Development30% 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
20% Custom Software Development10% Kotlin60% Mobile App Development20% Other -
$5,000+$25 - $49 / hr250 - 999New York, NY
Ability to deliver
38.9/40.020/20 Reviews10/10 Clients & Experience8.9/10 Market PresenceService focus
60% Custom Software Development15% Kotlin40% Other -
$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
10% Custom Software Development15% Kotlin50% Mobile App Development40% 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
10% Web Development60% Mobile App Development30% Other -
$50,000+$50 - $99 / hr250 - 999Tallinn, Estonia
Ability to deliver
38.7/40.019.8/20 Reviews9.1/10 Clients & Experience9.8/10 Market PresenceService focus
70% Custom Software Development15% Kotlin10% Mobile App Development20% 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
15% Custom Software Development15% Kotlin80% Mobile App Development5% Other -
$1,000+$25 - $49 / hr1,000 - 9,999London, England
Ability to deliver
38.6/40.019.2/20 Reviews9.6/10 Clients & Experience9.8/10 Market PresenceService focus
10% Custom Software Development11% Kotlin15% Web Development15% Mobile App Development60% Other
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Kotlin Development FAQs
Kotlin developers write applications using JetBrains' Kotlin programming language. On the Android side, they build native mobile applications using Jetpack Compose, Android SDK APIs, and modern architecture patterns like MVVM or MVI.
On the backend, Kotlin developers build server-side APIs and microservices using Ktor or Spring Boot. Furthermore, an emerging specialty is Kotlin Multiplatform (KMP), where developers write shared business logic that compiles to both Android and iOS.
Clutch’s verified pricing data shows that a focused Android app build typically ranges from $25,000 – $150,000, depending on factors like its complexity, features, and backend requirements.
Meanwhile, hourly rates for Kotlin development firms range from $25 – $149 per hour, with firms in Eastern Europe and Latin America often on the lower end and North American or Western European firms on the higher end.
Dedicated Kotlin shops maintain deeper expertise than generalist firms that work across many languages. They stay current with JetBrains' release cycle, know which libraries are production-stable versus experimental, and have established patterns for common challenges like coroutine exception handling or Compose state management. This depth typically translates to faster delivery, cleaner architecture, and lower long-term maintenance costs.
Start by outlining your project’s specific requirements and assessing their technical fit; confirm the firm has production Kotlin experience rather than Java teams that have adopted Kotlin syntax superficially.
Then, ask to see Kotlin-specific code samples or open-source contributions, and inquire about their familiarity with Kotlin coroutines, Flow, and Kotlin Multiplatform if relevant. Take a moment to thoroughly review their Clutch profiles and client ratings for projects similar to yours in complexity and industry.
Be cautious of firms that list Kotlin as a skill but whose case studies reference only Java or legacy Android development. Other red flags to watch out for include no mention of testing practices, an inability to discuss architectural patterns like Clean Architecture or MVI, and vague answers about how they handle Kotlin version migrations and library compatibility.