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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$1,000+< $25 / hr50 - 249Kolkata, India
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See all 44 projectsMatrix Media Solutions (P) Ltd. is a bespoke software development company offering tailored solutions, including custom ERP platforms and Magento-based eCommerce projects. With 100% positive feedback, clients commend their effective communication, adaptability, and successful delivery of end-to-end software development projects. Notably, 75% of reviewers highlight their impressive project management and responsiveness.
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$25,000+$100 - $149 / hr10 - 49Denver, CO
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See all 39 projectsAppIt Ventures is a custom software development company that offers tailored and full-stack software development services. Across diverse projects, customer feedback highlights their exceptional project management, timely delivery, and the ability to exceed expectations. Positive aspects include their collaborative culture and commitment to client success, with over 90% of reviewers emphasizing their effective communication and problem-solving skills.
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$50,000+$25 - $49 / hr1,000 - 9,999Cochabamba, Bolivia
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See all 7 projectsJalasoft is a Custom Software Development company specializing in providing software engineering, QA resources, and Full Stack Software Development. Reviewers highlight their effective integration into existing teams, with 100% noting their professionalism and timely delivery. Clients appreciate Jalasoft's commitment to fostering long-term partnerships and their ability to accelerate project timelines due to their strategic timezone alignment.
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$5,000+< $25 / hr50 - 249Gurugram, India
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See all 78 projectsPromatics Technologies is a custom software development company that provides a range of services, including bespoke software development and full-stack software development. Across various reviews, 88% of clients praised their technical competence, responsiveness, and value for cost, while 12% noted areas for improvement in domain expertise and professionalism. They excel in creating integrated solutions, with clients appreciating their proactive approach and commitment to project timelines.
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$5,000+$25 - $49 / hr50 - 249Fort Wayne, IN
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See all 31 projectsExtrovert Information Technology (EitBiz) is a custom software development company that offers tailored software creation, including full stack and end-to-end software development services. Across multiple reviews, EitBiz is praised for its effective project management, seamless integration into existing teams, and ability to deliver quality solutions on time. Notably, 100% of reviewers highlight the company's adaptability and efficiency in meeting complex requirements, although some suggest minor improvements in onboarding processes.
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$10,000+$25 - $49 / hr50 - 249Dubai, United Arab Emirates
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See all 96 projectsHalo Lab is a full-stack software development company specializing in custom software creation, with a notable focus on UX/UI design and seamless project management. Their reviews reflect a high level of client satisfaction, with 100% of reviewers praising their communication and professionalism. Clients consistently highlight Halo Lab's ability to onboard quickly and deliver creative and technically proficient solutions.
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$50,000+$150 - $199 / hr50 - 249Montréal, Canada
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See all 42 projectsOsedea is a bespoke software development company specializing in tailored software creation, full-stack development, and end-to-end solutions. The majority of reviews, approximately 90%, highlight Osedea’s timely delivery, excellent project management, and strong communication skills. Clients appreciate their adaptability and customer-centric approach, with 83% noting their impressive ability to understand and meet unique project needs.
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$5,000+$25 - $49 / hr50 - 249Montevideo, Uruguay
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See all 49 projectsCodigoDelSur is a full stack software development company providing custom software creation, web, and mobile app development services. Reviews highlight their agile approach and high-quality deliverables, with 100% of reviewers praising their adaptability and communication. However, one review noted potential improvements in project scope management. The company is recognized for delivering projects efficiently, often exceeding previous developers’ performance by 50%.
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$10,000+$50 - $99 / hr10 - 49Poznań, Poland
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See all 22 projectsMood Up is a bespoke software development company specializing in tailored software solutions, offering full-stack and end-to-end software development services. Reviews highlight their technical expertise, responsiveness, and customized approach. With 100% of reviews praising their flexibility, reliability, and client-oriented service, Mood Up consistently delivers projects on time, demonstrating a strong commitment to client satisfaction and effective communication.
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$50,000+$200 - $300 / hr10 - 49Vancouver, Canada
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See all 10 projectsSteamclock Software is a bespoke software development company specializing in custom software creation and app development. With a strong track record in delivering quality, Steamclock Software has earned overwhelmingly positive feedback, with clients praising their professionalism, project management, and innovative solutions. Approximately 90% of reviewers highlight their effective communication and attention to detail.
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$5,000+$100 - $149 / hr50 - 249Plano, TX
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See all 68 projectsAgency Partner Interactive LLC is a custom software creation company specializing in mobile app development. They have a strong track record, with 100% positive feedback highlighting their timely delivery, budget adherence, and effective communication. Clients appreciate their cohesive team and the CEO's hands-on approach.
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$25,000+$25 - $49 / hr50 - 249Alexandria, VA
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See all 55 projectsPlavno is a Custom Software Creation and Full Stack Software Development company that excels in delivering tailored solutions across diverse industries. With 100% of reviews highlighting their technical expertise and timely delivery, Plavno is praised for its professional project management and responsiveness. Clients commend their ability to seamlessly integrate advanced technologies and innovate according to specific business needs, making them a reliable partner for bespoke software development projects.
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$10,000+$25 - $49 / hr50 - 249Dnipro, Ukraine
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See all 34 projectsMind Studios is a bespoke software development company specializing in custom software creation, from full-stack development to AI integration. Across their reviews, clients consistently praise their professional project management and seamless integration, often highlighting their ability to deliver on time and within budget, with over 90% of feedback being positive. Clients appreciate their deep understanding of business needs and the tailored technical solutions they provide.
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$10,000+$25 - $49 / hr50 - 249Parsippany-Troy Hills, NJ
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See all 59 projectsOrigami Studios is a bespoke software development company known for its expertise in delivering tailored, end-to-end software solutions. The company consistently receives positive feedback for its agile and responsive project management approach, with numerous reviewers highlighting their impressive attention to detail, professionalism, and ability to meet client-specific needs. Nearly all reviews are positive, noting Origami Studios' proficiency in managing complex software projects and maintaining effective communication.
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Undisclosed$50 - $99 / hr1,000 - 9,999Tampa, FL
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See all 32 projectsNIX is a reputable company specializing in custom software development and full stack software development. The feedback from their clients is overwhelmingly positive, with 100% highlighting their professionalism, effective communication, and timely delivery. Clients frequently commend NIX's ability to adapt to project needs and offer valuable suggestions, with 70% noting their impressive project management and resource flexibility.
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$10,000+$25 - $49 / hr250 - 999Ahmedabad, India
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See all 55 projectsMindInventory is a bespoke software development company that specializes in end-to-end software development services, including custom software creation, UI/UX design, and technical solutions across platforms. Reviews reflect an 88% positive feedback rate, highlighting impressive technical expertise, responsive communication, and efficient project management. However, 12% of reviews indicate challenges with project completion and communication, particularly in website development projects.
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$50,000+$25 - $49 / hr50 - 249Alexandria, Egypt
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See all 34 projectsEnozom Software is a custom software development company excelling in tailored and bespoke software solutions. The company receives overwhelmingly positive feedback, with clients praising their strong technical capabilities and accountability. A recurring theme in reviews is their ability to meet deadlines, with over 90% of clients highlighting timely delivery and effective communication. Clients also commend Enozom Software for their adaptability and consistent quality in software engineering.
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$50,000+Undisclosed50 - 249London, England
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See all 25 projectsSupercharge is a comprehensive software development company specializing in tailored software development and full-stack software solutions. They have consistently received positive feedback for their commitment to timely delivery (100% of reviewers) and collaborative project management (about 85% of reviewers). Clients commend their flexibility, modern approach, and innovative solutions, making them a reliable partner for bespoke software creation.
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$10,000+$25 - $49 / hr10 - 49Punjab, India
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See all 46 projectsQualhon Informatics Pvt. Ltd. is a bespoke software development company specializing in custom software creation and end-to-end software development services. With a 100% success rate in delivering projects on time and within budget, reviewers consistently praise their responsiveness, technical expertise, and strong project management skills, with over 90% highlighting their flexibility and commitment to quality.
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$5,000+$25 - $49 / hr50 - 249Dallas, TX
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See all 49 projectsiQlance Solutions LLC is a bespoke software development company specializing in custom software creation and end-to-end software development services. Reviews highlight their consistent ability to deliver projects on time (95%), responsiveness to client needs, and excellent project management. Clients frequently commend their communication skills and adaptability, with 85% of reviewers noting their strong customer service and technical expertise. Overall, iQlance Solutions LLC is praised for its professionalism and high-quality software solutions.
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$5,000+$50 - $99 / hr50 - 249Lucknow, India
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See all 58 projectsDigital Heroes is a bespoke software development company specializing in custom software creation and full-stack software development. Across various industries, 100% of their reviews praise their ability to tailor solutions to specific operational needs, resulting in increased efficiency and reduced manual tasks. Clients commend their practical problem-solving and responsive project management, although some suggest improved documentation for easier onboarding.
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$25,000+$150 - $199 / hr10 - 49Atlanta, GA
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See all 15 projectsBellwood is a custom software development company specializing in tailored software solutions for diverse industries. With over 90% positive feedback, clients commend Bellwood for their proactive communication, project management excellence, and strong partnership ethos. Approximately 70% of reviewers highlight their ability to deliver on time and exceed expectations, emphasizing their comprehensive full-stack software development capabilities.
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$10,000+$25 - $49 / hr50 - 249Alexandria, Egypt
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See all 21 projectsRunProf LLC is a custom software development company known for its tailored software development services. They have consistently received positive feedback, with over 90% of reviewers praising their project management and ability to meet client needs. Clients highlight their cooperative approach and effective communication, with a notable emphasis on delivering high-quality solutions within set timelines.
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$5,000+< $25 / hr50 - 249Kolkata, India
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See all 25 projectsMass Software Solutions Private Limited is a custom software development company specializing in tailored and full-stack software creation. They receive overwhelmingly positive feedback, with 100% of clients praising their project management, communication, and delivery timeliness. Many clients appreciate their partnership mindset and ability to understand and enhance their projects, highlighting their agility and competence in software engineering.
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$25,000+$50 - $99 / hr50 - 249Gliwice, Poland
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See all 53 projectsArtkai is a custom software development company known for delivering tailored software solutions across various industries. The reviews consistently highlight their excellent project management, transparent communication, and high-quality results, with 90% of customers noting exceptional value for cost. Their professional chemistry and experience with digital products are frequently praised, making them a preferred choice for bespoke software development projects.
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$25,000+$25 - $49 / hr50 - 249Mountain View, CA
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See all 41 projectsCloseloop Technologies LLC is a bespoke software development company specializing in custom software creation and end-to-end software development. Client feedback is predominantly positive, emphasizing their excellent project management, flexibility, and timely delivery. Approximately 90% of reviewers commend their effective communication and problem-solving capabilities, while many highlight their ability to quickly understand client needs and deliver cost-effective, tailored solutions.
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$25,000+$200 - $300 / hr2 - 9New York, NY
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See all 25 projectsLickability is a specialized software development company focusing on custom software creation, particularly in iOS app development and native applications for Apple devices. Across reviews, Lickability receives highly positive feedback with a focus on their expertise, meeting timelines, and their proactive approach, with approximately 90% of reviewers praising their project management and organizational skills. Clients frequently commend their deep knowledge and swift adaptation to client needs.
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$10,000+$25 - $49 / hr50 - 249Kyiv, Ukraine
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See all 42 projectsTallium Inc. is a bespoke software development company specializing in custom software creation and full-stack software engineering. The reviews indicate a 100% satisfaction rate, with consistent praise for their project management, high-quality deliverables, and effective communication. Approximately 80% of reviewers highlight their strong cultural fit and value alignment, while others commend their professionalism, punctuality, and dedication.
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$50,000+$100 - $149 / hr10 - 49London, England
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See all 30 projectsStakk is a bespoke software development company specializing in custom software creation, including full stack development and end-to-end software engineering. Reviews highlight a 100% satisfaction rate with their technical excellence, project management, and creative talent. Approximately 90% of clients emphasize their effective communication and adaptability, while 80% commend their value for money and scalability expertise.
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$25,000+$25 - $49 / hr50 - 249London, England
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See all 33 projectsTech Alchemy is a bespoke software development company specializing in custom software creation and full stack software development services. Reviews highlight their exceptional project management, innovative approach, and deep understanding of client needs, leading to successful outcomes and long-term partnerships. Their ability to integrate blockchain and AI technologies is frequently praised, with overwhelmingly positive feedback from clients. All reviewers expressed satisfaction, with no significant areas for improvement noted.
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$100,000+$50 - $99 / hr250 - 999Cluj-Napoca, Romania
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See all 32 projectsRebelDot is a bespoke software development company excelling in custom software creation and end-to-end software development services. They are highly praised for their structured project management, flexibility, and commitment to quality, with over 90% of reviews highlighting their professionalism and delivery of high-standard code. Clients consistently appreciate their ability to adapt, clear communication, and dedication to understanding and fulfilling client needs.
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$25,000+$25 - $49 / hr50 - 249Dallas, TX
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See all 25 projectsAppVerticals specializes in Custom Software Development, providing bespoke and tailored software solutions. Their reviews highlight a strong commitment to delivering high-quality final products, effective project management, and responsiveness to client needs. Clients appreciate their problem-solving skills and dedication to achieving project goals, making them a reliable choice for Custom App Development projects.
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$10,000+$25 - $49 / hr50 - 249Jaipur, India
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See all 203 projectsDev Technosys is a Custom Software Creation company that excels in tailored software development and full stack solutions, with a focus on blockchain technology and industry-specific applications. Across reviews, 90% highlight their expertise in blockchain and dedication to client needs, while 80% commend their project management skills. However, 30% suggest improvements in communication and timeliness.
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$10,000+$50 - $99 / hr50 - 249Cremorne, Australia
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See all 17 projectsTechne HQ is a custom software creation and bespoke software development company, excelling in tailored software development and end-to-end software development solutions. Reviews highlight their professionalism, responsiveness, and ability to deliver high-quality results, with a 100% positive feedback rate. Clients appreciate their project management skills, with emphasis on effective communication and timely delivery, as well as their capacity to understand and expand client visions.
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$10,000+$50 - $99 / hr10 - 49Batroun, Lebanon
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See all 83 projectsCOMPU-VISION S.A.R.L. is a Custom Software Creation company specializing in end-to-end software development solutions, including both frontend and backend services. 85% of reviewers praised their commitment, responsiveness, and ability to deliver complex projects. Although some noted minor delays, the company's professionalism and customer service orientation are highly regarded, making them a strong partner for software engineering needs.
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$5,000+$100 - $149 / hr10 - 49Singapore, Singapore
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See all 34 projectsOrfeostory Pte Ltd is a web development company renowned for its professional website design and development services. Clients consistently praised their responsiveness, clear communication, and ability to deliver projects on time. Approximately 90% of reviewers highlighted their impressive project management and customer-centric approach, while about 80% mentioned their value for money and alignment with client needs.
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$25,000+$25 - $49 / hr50 - 249Santa Monica, CA
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See all 36 projectsIT-Dimension Inc. is a Custom Software Development firm offering tailored software creation services, specializing in end-to-end software engineering. The feedback from reviewers showcases a remarkable 100% satisfaction rate, with consistent praise for their technical expertise, project management, and responsiveness. Notably, 70% of reviewers highlight their advanced technical solutions and the seamless integration of user experience, underscoring their capability in delivering bespoke software solutions.
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Undisclosed$25 - $49 / hr50 - 249Malvern, PA
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See all 41 projectsAllianceTek is a custom software development firm excelling in tailored software solutions, including full stack and bespoke software creation. Client reviews highlight their strong project management and agile responsiveness, with 100% positive feedback on their ability to handle complex and challenging projects. Approximately 60% of reviewers commend their innovative solutions and commitment to delivering cost-effective results.
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$5,000+$25 - $49 / hr50 - 249Tandil, Argentina
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See all 36 projectsIntermedia IT is a renowned custom software development firm specializing in bespoke software creation, particularly in AI-powered solutions. With a strong emphasis on tailored software development, they have garnered overwhelmingly positive feedback from clients. Approximately 90% of reviewers praised their expertise in AI and their commitment to personalized service, highlighting their professionalism and ability to deliver projects on time and exceed client expectations.
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$10,000+$25 - $49 / hr50 - 249Kraków, Poland
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See all 58 projectsTechWings is a Custom Software Creation company specializing in tailored software development and end-to-end software engineering solutions. Reviews consistently highlight their strong project management, timely delivery, and high-quality outcomes, with approximately 95% of feedback being positive. Clients frequently commend their professional communication, adaptability, and ability to meet specific project goals and timelines.
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$10,000+$25 - $49 / hr50 - 249Kolkata, India
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See all 140 projectsBrainium Information Technologies is a versatile software development company offering custom and full stack software development services. Reviews highlight their strong project management, timely delivery, and effective communication, with 88% of the feedback being positive. Clients appreciate their technical expertise and flexibility, though 12% suggest areas for improvement, mainly in contract adherence and project scope management.
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$50,000+$50 - $99 / hr250 - 999Warszawa, Poland
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See all 79 projectsYalantis is a company specializing in custom software development and full stack software engineering. The reviews indicate a high level of satisfaction, with 100% of reviewers praising their project management, communication, and ability to deliver projects on time. Many clients emphasize Yalantis' ability to integrate seamlessly with their teams and adapt to changing requirements, with no significant areas for improvement noted.
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$25,000+$50 - $99 / hr2 - 9Toronto, Canada
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See all 14 projectsOtrofy, a custom software development company, excels in delivering tailored software solutions, as reflected in their positive reviews. The company is praised for its professionalism, effective project management, and ability to transform complex concepts into reality. Notably, 100% of reviewers commend Otrofy for meeting timelines and budgetary expectations while maintaining confidentiality throughout the development process.
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$10,000+$100 - $149 / hr10 - 49Tel Aviv-Yafo, Israel
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See all 14 projectsTLVTech is a distinguished Custom Software Creation company specializing in bespoke software development and full stack software engineering. They have consistently received positive feedback, with over 90% of reviewers praising their technical expertise, proactive problem-solving, and commitment to project success. Clients commend their ability to understand business needs and deliver high-quality solutions efficiently, making them an ideal partner for complex software projects.
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$5,000+< $25 / hr50 - 249Ahmedabad, India
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See all 32 projectsSolGuruz is a bespoke software development company specializing in custom software creation, full-stack development, and software engineering. The company receives overwhelmingly positive feedback, with 100% of reviewers appreciating their responsiveness, communication, and adherence to deadlines. Clients commend their innovative solutions and commitment to project success, though a few suggest faster delivery times could be beneficial.
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$50,000+$50 - $99 / hr50 - 249Miami, FL
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See all 45 projectsIntellectsoft is a custom software development company that excels in bespoke software creation and end-to-end software engineering solutions. With a strong emphasis on professionalism and responsiveness, approximately 80% of reviewers highlight their effective project management and timely delivery. Clients also commend their flexibility and the high quality of their development work, with over 70% praising the expertise and talent of their developers.
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$10,000+< $25 / hr50 - 249Hyderabad, India
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See all 52 projectsAhex Technologies is a Custom Software Creation company specializing in tailored software development and full-stack solutions. Their reviews highlight a 95% satisfaction rate, with clients commending their proactive management and flexibility in adapting to project needs. A notable 80% of reviewers emphasize their ability to deliver scalable and future-ready solutions, underlining their expertise in software engineering and end-to-end software development.
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$50,000+$25 - $49 / hr50 - 249
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See all 16 projectsMetaProject is a custom software development company specializing in tailored and bespoke software solutions, with a strong focus on full-cycle and end-to-end software development. Across reviews, 100% of clients praised their technical expertise and business-first mindset. The company consistently delivers projects on time, with 100% of reviews highlighting their excellent project management and responsiveness, making them a reliable partner for complex software projects.
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$5,000+< $25 / hr50 - 249Jaipur, India
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See all 27 projectsOwebest Technologies is a Custom Software Development company specializing in bespoke software creation and full stack software development. Their reviews indicate a 100% positive sentiment, emphasizing their technical expertise, responsive project management, and commitment to delivering high-quality, tailored solutions. Approximately 75% of reviewers highlight their exceptional communication and ability to meet project deadlines.
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$25,000+$50 - $99 / hr10 - 49Niš, Serbia
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See all 14 projectsBoopro Technology is a Custom Software Development company excelling in bespoke software creation and end-to-end software development. The reviews highlight a strong emphasis on project management and responsiveness, with 100% of clients noting successful project outcomes. While communication and adaptability are praised, 33% of reviewers suggested improvements in documentation and proactive enhancements.
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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.