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+$25 - $49 / hr10 - 49Yerevan, Armenia
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See all 5 projectsAR++ is a bespoke software development company specializing in custom software creation and full stack software development. Their reviews highlight a consistent theme of high-quality deliverables and excellent communication, with 100% of reviewers praising their project management and dedication to customer service. The company's expertise in managing complex projects and flexibility across time zones further underscores their capability in delivering tailored software solutions.
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$10,000+$50 - $99 / hr50 - 249Gdańsk, Poland
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See all 10 projectsDAC.digital is a custom software development company renowned for its bespoke software creation and full stack development services. Across numerous reviews, 100% of clients appreciate their timely delivery, efficient communication, and technical expertise. Clients frequently commend DAC.digital's ability to adapt to their specific needs, offering tailored solutions and added functionalities within budget, showcasing exceptional project management and proactive collaboration.
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$5,000+$25 - $49 / hr1,000 - 9,999Białystok, Poland
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See all 28 projectsQBurst is a bespoke software development company providing tailored solutions, including Salesforce-based product creation and mobile app development. The reviews indicate a strong emphasis on flexibility and customer service, with approximately 80% of feedback reflecting positive experiences in project management and communication. Clients frequently praise QBurst for their technical expertise and timely delivery. However, some reviews suggest room for improvement in Salesforce Lightning capabilities.
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$10,000+$50 - $99 / hr50 - 249Lucknow, India
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See all 20 projectsAayan Infotech specializes in Custom Software Development, providing tailored and end-to-end software development solutions. They are highly praised for their exceptional communication and project management, with 100% of reviewers highlighting their clarity and accessibility. The company successfully delivers satisfactory project outcomes, meeting client expectations and timelines.
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$25,000+$25 - $49 / hr50 - 249Alexandria, Egypt
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See all 17 projectsRubikal is a custom software development company providing tailored solutions across various industries. They have received a mix of reviews, with about 70% positive feedback praising their flexible approach and technical expertise in areas like AI and machine learning, while around 30% mention areas for improvement, including communication and project delays. Their ability to deliver full stack software development with a keen understanding of client needs is highlighted in several reviews.
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$25,000+$150 - $199 / hr10 - 49Denver, CO
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See all 9 projectsWoodridge Software is a bespoke software development company specializing in custom software creation and end-to-end software development. Reviews indicate a 100% positive feedback rate, highlighting their problem-solving skills, adaptability, and strong project management capabilities. Notably, 60% of reviewers commend their ability to integrate and deliver tailored solutions across diverse industries efficiently.
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$75,000+$100 - $149 / hr50 - 249Richmond, VA
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See all 17 projectsShockoe is a Custom Software Creation company specializing in Full Stack Software Development and mobile app solutions. Across multiple reviews, 100% of clients highlight their effective project management, flexibility, and strong understanding of business needs. Clients commend Shockoe for their realistic deadlines and seamless integration of software, noting a significant improvement in business processes and user experience.
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$10,000+< $25 / hr50 - 249Gurugram, India
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See all 23 projectsYugasa Software Labs is a Custom Software Development firm specializing in bespoke software creation, full-stack development, and end-to-end software solutions. The company receives predominantly positive feedback, with over 80% of clients praising their technical acumen, commitment to project timelines, and solution-oriented approach. A notable 40% improvement in operational efficiency and increased client engagement are frequently highlighted outcomes of their projects. However, there is a mention of delayed project delivery in a minority of cases.
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$5,000+< $25 / hr50 - 249Ahmedabad, India
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See all 22 projectsBrilworks Software is a company specializing in Custom Software Development, renowned for providing bespoke solutions across various industries. Feedback from reviews indicates a high satisfaction rate, with approximately 95% of clients praising their "high availability," "communication," and "technical expertise." They consistently deliver projects on time, demonstrating adaptability and a client-focused approach, resulting in long-term professional relationships.
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$5,000+$50 - $99 / hr10 - 49Euless, TX
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See all 7 projectsCrossway Consulting is a versatile digital solutions provider specializing in website development, SEO services, SaaS applications, and social media marketing. Their clients consistently praise their project management, timely delivery, and industry knowledge. With a 100% positive review rate, 75% of clients highlight the team's professionalism and customer-focused approach. Crossway Consulting is widely recommended for their exceptional service and impactful digital strategies.
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$10,000+$25 - $49 / hr50 - 249Barangaroo, Australia
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See all 3 projectsUPCORE is a web and app development company recognized for its expertise in branding, website creation, and mobile app development. The feedback indicates a strong positive sentiment, with clients praising their design skills, project management, and responsiveness, resulting in successful project launches and increased traffic. Notably, 100% of reviewers commend their professionalism and competence.
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$10,000+$25 - $49 / hr50 - 249
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See all 13 projectsDevsX is a bespoke software development company specializing in tailored software solutions, including SaaS, mobile applications, and backend infrastructure. Commended for their high-quality work and responsiveness, clients consistently highlight their ability to deliver on time and within budget. Approximately 75% of reviewers praise their strong project management and custom approach, though some mention initial timeline adjustments.
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$10,000+$50 - $99 / hr50 - 249Katowice, Poland
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See all 16 projectsNetizens is a versatile software development company, specializing in tailored and bespoke software development services. Their expertise includes full-stack and end-to-end software engineering. According to reviews, 100% of clients report positive experiences, highlighting their professionalism, reliable project management, and innovative solutions. Approximately 80% of reviewers praise their ability to customize and deliver unique solutions that significantly impact client operations.
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UndisclosedUndisclosed10 - 49Leawood, KS
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See all 13 projectsActive Logic is a custom software development company known for delivering tailored software solutions across various industries. Approximately 90% of their reviews highlight the firm's responsiveness and effective communication. Clients commend their ability to manage projects efficiently, with a 100% project completion rate within the original scope. Noteworthy aspects include their commitment to client needs and transparent communication, although some reviews mention budget overages.
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$5,000+$25 - $49 / hr10 - 49Kristiansand, Norway
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See all 2 projectsFrontbyte AS is a Bespoke Software Development company specializing in both frontend and backend services. They are praised for their skilled developers and effective project management, with 100% of reviews highlighting their ability to enhance development capacity and the quality of their deliverables. Clients appreciate their expertise and seamless integration with in-house teams.
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$10,000+$100 - $149 / hr10 - 49Austin, TX
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See all 5 projectsTouch To is a Custom Software Creation company specializing in bespoke and tailored software development solutions. With an emphasis on excellent communication and creativity, 100% of reviewers praised their project management skills and ability to fulfill project scope. Their end-to-end software development services are highly valued for their adaptability and alignment with client needs and values.
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$5,000+$25 - $49 / hr10 - 49Miami, FL
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See all 7 projectsInfinixSoft is a custom software development company offering tailored mobile and desktop app solutions. Reviews indicate a strong capacity for scalable projects, with 75% of reviewers appreciating their software development expertise. However, 50% noted timeline and design challenges. Overall, InfinixSoft is recommended for their commitment to client relationships and understanding of diverse business models.
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$25,000+$50 - $99 / hr50 - 249Yerevan, Armenia
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See all 12 projectsSTDev is a Custom Software Creation company that excels in providing end-to-end software development solutions. Clients consistently highlight their technical expertise, responsiveness, and effective project management. Approximately 80% of reviews emphasize their ability to build strong, user-friendly platforms, while 70% praise their transparent communication and partnership approach. STDev's commitment to client satisfaction and innovative problem-solving is frequently noted, with minimal critical feedback.
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$25,000+$50 - $99 / hr50 - 249Los Angeles, CA
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See all 2 projectsSpartan is a custom software development company known for delivering tailored software solutions with a strong focus on organization, process, and perpetual improvement. Their remarkable expertise is evident as 100% of reviews highlight their exceptional communication and project management skills, with clients praising their responsiveness and commitment to client success. Spartan consistently meets project goals, from building MVPs to enhancing system stability.
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$50,000+$50 - $99 / hr50 - 249Varna, Bulgaria
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See all 3 projectsQuanterall is a bespoke software development company specializing in custom software creation and end-to-end software engineering solutions. The reviews highlight their expertise in financial systems and smart contract development, with 100% positive feedback on their professionalism and technical skills. Clients commend their strong communication, flexibility, and ability to integrate seamlessly with existing teams, contributing to successful project outcomes.
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$25,000+$50 - $99 / hr10 - 49Tampa, FL
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See all 8 projectsAxel provides tailored software development services, specializing in creating mobile applications with features such as gamification and video tutorials. The reviews highlight Axel's effective communication, prompt response to requests, and ability to deliver projects on time. Clients commend their straightforward approach and comprehensive understanding of software development, making them a valuable partner in achieving project goals.
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$10,000+Undisclosed250 - 999Hampshire, England
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See all 66 projectsCommunication Crafts is a bespoke software development company focusing on custom software creation and full-stack software development. Their reviews highlight impressive project management and communication skills, with 100% of reviewers praising their responsiveness and ability to deliver projects on time. Additionally, 83% of clients appreciate their value for money and technical expertise. However, some suggest improvements in proactive issue identification.
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$10,000+$50 - $99 / hr10 - 49
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See all 32 projectsSnowman Labs is a bespoke software development company specializing in tailored software creation and custom software engineering. Reviews indicate a strong emphasis on technical excellence, project management, and alignment with client values, resulting in an overwhelmingly positive client experience. Notably, 100% of reviewers praised their ability to integrate with client teams, and many highlighted their responsive communication and innovative approach to project challenges.
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$50,000+$50 - $99 / hr50 - 249Austin, TX
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See all 16 projectsAgiliway is a bespoke software development company specializing in tailored software development and end-to-end software solutions. Reviews highlight their high talent access and innovation, with over 80% of feedback noting impressive project management and collaborative abilities. Clients appreciate their ability to quickly adapt and deliver complex projects efficiently. While minor improvements in time estimations are noted, their overall performance is consistently praised.
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$25,000+$50 - $99 / hr10 - 49HaOgen, Israel
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See all 16 projectsmoblers is a custom software development company specializing in tailored software development, with a focus on IoT and machine learning projects. Reviewers highlight their professional working style and effective project management, with 100% of feedback emphasizing timely delivery and cooperation. No areas for improvement were noted, with recommendations for potential clients to confidently engage their services.
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$50,000+$50 - $99 / hr250 - 999
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See all 4 projectsNewage.io, a software development company, specializes in custom software creation, particularly in Salesforce and tailored software development. All clients praised their clear communication, timely delivery, and comprehensive project management, with 100% of reviews noting their impressive ability to meet client needs and expectations.
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$25,000+$50 - $99 / hr50 - 249Seattle, WA
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See all 32 projectsMobcoder is a Custom Software Development company specializing in end-to-end software development, including full-stack solutions and bespoke software creation. Reviews highlight their strong project management capabilities, timely delivery, and flexibility to accommodate changes. Approximately 100% of reviewers praised their technical proficiency and commitment to meeting deadlines, while a few noted areas for improvement in bug testing and reporting. Overall, clients appreciate Mobcoder's professionalism and service-oriented approach.
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$10,000+$50 - $99 / hr10 - 49Warszawa, Poland
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See all 12 projectsEvojam is a bespoke software development company renowned for delivering tailored software solutions, including custom software creation and full stack software development. With consistently positive reviews, 100% of clients commend their technical expertise, project management skills, and adaptability. Their ability to work autonomously while maintaining high-quality standards is frequently highlighted, making them a preferred choice for complex software engineering projects.
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$5,000+$25 - $49 / hr50 - 249Ahmedabad, India
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See all 26 projectsElegant MicroWeb is a bespoke software development company specializing in custom software creation and tailored solutions, as evidenced by their work in data analytics, AI, mobile applications, and custom reporting tools. Across their reviews, clients consistently praise their responsiveness, customer-centric approach, and ability to deliver projects on time with high-quality results. Notably, 100% of reviewers highlighted their excellent project management and adaptability to client needs.
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$10,000+$25 - $49 / hr50 - 249L'viv, Ukraine
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See all 12 projectsFicus Technologies is a Custom Software Development company excelling in tailored and full-stack software solutions. Their reviews consistently highlight exceptional professionalism, timely delivery, and innovative problem-solving, with no negative feedback observed. Approximately 100% of clients praise their alignment with company values, cost-effectiveness, and commitment to exceeding expectations.
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$50,000+$150 - $199 / hr10 - 49Riyadh, Saudi Arabia
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See all 18 projectsiSpectra is a custom software creation and digital transformation company specializing in enhancing user experiences and providing bespoke software development. They receive overwhelmingly positive feedback, with 100% of reviewers highlighting their agile project management and commitment to meeting project goals on time. Clients frequently commend their ability to deliver under tight deadlines.
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$25,000+$50 - $99 / hr250 - 999Sofia, Bulgaria
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See all 42 projectsWiser Technology, a company specializing in bespoke software development services, excels in delivering tailored software solutions across various sectors. Reviews indicate a 100% positive feedback rate, highlighting their exemplary project management, technical expertise, and responsiveness. Notably, 80% of reviewers commend their innovative problem-solving and customer-focused service, underscoring Wiser Technology's commitment to quality and client satisfaction.
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$10,000+$50 - $99 / hr50 - 249Tallinn, Estonia
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See all 16 projectsBamboo Apps is a bespoke software development company specializing in custom software creation and full-stack software development. Reviews highlight their impressive design capabilities, effective project management, and proactive approach, with 100% positive feedback praising their ability to deliver high-quality, user-friendly interfaces. Over 80% of reviewers mention their dedication and innovative contributions, underscoring Bamboo Apps' commitment to excellence in software engineering.
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$5,000+$25 - $49 / hr10 - 49London, England
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See all 16 projectsNovumlogic Technologies Pvt Ltd is a custom software development company specializing in tailored solutions such as mobile and web applications. The reviews highlight their exceptional project management, commitment to deadlines, and ability to enhance operational efficiency. Impressively, 100% of reviewers praised their communication skills and attention to detail, noting significant improvements in productivity and system scalability.
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$5,000+< $25 / hr50 - 249Sahibzada Ajit Singh Nagar, India
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See all 12 projectsWegile is a Custom Software Development company specializing in Tailored Software Development and End-to-end Software Development solutions. Reviews indicate a high level of client satisfaction, with approximately 95% of feedback highlighting their exceptional communication and consistent quality in software engineering. Clients frequently commend Wegile for their project management skills and responsiveness, coupled with impressive custom software creation capabilities.
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$1,000+$25 - $49 / hr10 - 49Yerevan, Armenia
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See all 5 projectsDirion is a custom software development company, offering full stack software development services, including backend, website, and mobile applications. Their reviews highlight a strong commitment to project success and excellent communication, with 100% positive feedback regarding their dedication and professionalism. Clients appreciate their thorough project management and support, though additional analytical resources could enhance their efficiency.
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$50,000+$100 - $149 / hr50 - 249Vienna, VA
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See all 18 projectsMobomo is a distinguished custom software development company that excels in providing tailored software development services, including web and mobile app development. Their clients frequently commend their innovative approach, flexibility, and effective project management. Approximately 85% of reviewers highlight Mobomo's ability to deliver projects on time and meet client needs, with an emphasis on agile methodologies and responsive communication.
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$10,000+< $25 / hr250 - 999Pune, India
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See all 15 projectsiProgrammer Solutions Private Ltd. is a Custom Software Creation company specializing in tailored software development and full-stack software engineering. The company has received overwhelmingly positive feedback, with 100% of clients praising their timely delivery, dedication, and effective communication. Notable themes include their ability to align with client values and their adaptability to project needs.
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$5,000+< $25 / hr50 - 249
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See all 35 projectsParas Technologies is a Custom Software Development company specializing in tailored solutions, including web and mobile app development, SaaS applications, and AI tools. Generally, client reviews are positive, with about 71% highlighting Paras Technologies' commitment, innovative problem-solving, and effective communication. However, around 29% of reviews suggest areas for improvement in project management and quality control. Notably, customers appreciate their willingness to understand project requirements and dedication to achieving client goals.
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$5,000+$25 - $49 / hr10 - 49Madrid, Spain
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See all 39 projectsi-Labs App Development specializes in Custom Software Creation and Full Stack Software Development, offering tailored solutions for clients. Their reviews highlight a dedication to quality and proactive problem-solving, with 100% positive feedback praising their commitment to best practices and robust code architecture. Clients are impressed by their seamless collaboration and effective project management.
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$10,000+$50 - $99 / hr10 - 49Novi Sad, Serbia
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See all 1 projectsCrystal Pigeon is a mobile app development company that excels in delivering complex projects under tight deadlines. The feedback for their services is overwhelmingly positive, with 100% of reviewers praising their professionalism, efficiency, and communication. Clients specifically commend their impressive app development skills and seamless project management, making them a highly recommended partner for future collaborations.
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$5,000+$25 - $49 / hr50 - 249
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See all 40 projectsSeraphic Infosolutions Pvt. Ltd. is a custom software creation company offering tailored solutions, including end-to-end software development and software engineering. Reviews indicate a strong emphasis on user-centric design and robust project management, with 100% of clients noting responsiveness and quality communication. Most feedback highlights their proactive approach and technical expertise, while a minority suggest improvement in communication regarding minor delays.
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$1,000+$25 - $49 / hr10 - 49Surat, India
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See all 13 projectsSquillion Technology is a Custom Software Creation company specializing in tailored software development and comprehensive software solutions. With 100% positive feedback, reviewers commend their alignment with company values, effective communication, and innovation. Approximately 67% of clients highlight their remarkable ability to integrate seamlessly into existing teams, enhancing software architecture and development processes. Squillion Technology is consistently recognized for delivering high-quality, timely solutions with strong project management.
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$25,000+$50 - $99 / hr50 - 249Wrocław, Poland
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See all 30 projectsSpyrosoft BSG is a bespoke software development company with a strong emphasis on custom software creation and full-stack software development. Their clients commend their professionalism, expertise in video solutions, and effective project management. Approximately 90% of the reviews highlight their ability to deliver high-quality, tailored software solutions on time, and 70% praise their strong communication and collaboration skills.
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$5,000+$25 - $49 / hr10 - 49Odesa, Ukraine
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See all 11 projectsOcty provides bespoke software development and tailored software solutions, including custom app development for iOS, Android, and web platforms. The overall feedback from their clients highlights their strong project management, transparent communication, and innovative approach. Clients were particularly impressed by Octy's ability to understand and enhance their business processes and specific project needs, resulting in high-quality, timely deliverables.
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$10,000+$100 - $149 / hr10 - 49
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See all 10 projectsDigital Awesome is a bespoke software development company that specializes in creating tailored software solutions for diverse industries. Across its reviews, Digital Awesome is praised for its commitment, strategic thinking, and seamless project management, with nearly 100% of feedback highlighting their collaborative approach and ability to enhance user experiences. Clients commend their attention to detail and transparency, making them an ideal partner for custom software creation projects.
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$10,000+$25 - $49 / hr50 - 249Kathmandu, Nepal
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See all 11 projectsE-Signature Pvt. Ltd. is a mobile app and web development company known for delivering comprehensive solutions across diverse industries, including real estate and healthcare. The company is praised for its effective communication, flexibility, and meeting client needs, resulting in approximately 90% of reviews being positive. Reviewers frequently commend the company for delivering high-quality work within budget, with around 75% emphasizing their creativity and ability to transform ideas into reality.
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$50,000+$25 - $49 / hr250 - 999Lahore, Pakistan
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See all 22 projectsVentureDive is a Custom Software Development company specializing in tailored software solutions, including mobile app development and project management. The majority of reviews (80%) praise their timely delivery and commitment to quality, while 20% suggest enhancements in creative design. Clients commend their professionalism, flexibility, and attentive project management, noting VentureDive’s ability to effectively meet diverse client needs.
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$1,000+$25 - $49 / hr10 - 49L'viv, Ukraine
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See all 15 projectsGot It Agency is a bespoke software development company specializing in custom software creation, including iOS development and CRM platforms. The agency receives overwhelmingly positive feedback for its effective communication and high-quality work, with clients praising their attention to detail, responsiveness, and flexibility. Notably, 100% of reviewers mentioned their impressive project management and exemplary service delivery.
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$100,000+Undisclosed10 - 49London, England
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See all 5 projectsFuture Platforms is a mobile app development company renowned for creating innovative digital solutions across various industries, including fitness, transport, sports, and telecommunications. Reviewers consistently praise their world-class design and strong project management, with 80% noting their client-centric approach and collaboration. While some suggest improvements in flexibility and cost, 90% appreciate their dedication and seamless integration with client teams.
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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.