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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$50,000+$50 - $99 / hr50 - 249Los Angeles, CA
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See all 48 projectsSidebench is a bespoke software development company specializing in end-to-end software solutions, excelling in custom software creation and software engineering. Reviewers consistently praise Sidebench for their professionalism, project management, and communication skills, with approximately 90% of feedback being positive. Around 85% of reviewers highlight their ability to understand client needs and deliver tailored solutions.
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$25,000+$50 - $99 / hr10 - 49Budapest, Hungary
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See all 16 projectsMindtech Apps: Mindtech Apps offers bespoke software development services, specializing in tailored software solutions and custom app development. Clients have praised their flexible, open-minded approach and thorough project management. Reviews highlight their ability to handle complex projects smoothly, utilizing technologies like PHP, Laravel, and MySQL, with consistent satisfaction in their deliverables and professional relationships.
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$25,000+$25 - $49 / hr10 - 49Medellín, Colombia
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See all 11 projectsCodeBranch is a custom software development company offering tailored and full-stack software solutions. Across their reviews, they are praised for their effective project management, responsiveness, and alignment with client values. Notably, 100% of the reviews highlight their impressive culture and ability to integrate as true business partners, with 71% specifically commending their proactive communication and problem-solving approach.
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$25,000+$100 - $149 / hr10 - 49Cluj-Napoca, Romania
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See all 45 projectsLinnify is a bespoke software development company that excels in end-to-end software engineering, with a focus on custom software creation and tailored solutions. The reviews highlight their adaptability, strong project management, and collaborative approach, with 100% of reviewers emphasizing their professionalism and commitment to client success. Clients consistently appreciate Linnify's ability to exceed expectations, offer strategic input, and deliver high-quality, user-friendly products on time and within budget.
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$5,000+$25 - $49 / hr50 - 249Noida, India
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See all 26 projectsQuokka Labs is a Custom Software Development company specializing in tailored and end-to-end software solutions. Based on their reviews, 100% of the feedback highlights their strong project management, professionalism, and ability to deliver projects on time. Reviewers frequently commend their technical expertise, adaptability, and commitment to client satisfaction, with 71% noting their impressive communication and collaboration skills.
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$10,000+$25 - $49 / hr50 - 249Sahibzada Ajit Singh Nagar, India
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See all 101 projectsNetSet Software Solutions is a custom software development company specializing in tailored and end-to-end software solutions across various industries, including real estate, automotive, and blockchain. Their reviews reflect a 100% positive feedback rate, highlighting their technical expertise, project management efficiency, and ability to align with clients' budgets and values. Clients commend their responsiveness, industry understanding, and commitment to delivering bespoke software development solutions that exceed expectations.
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$10,000+$25 - $49 / hr10 - 49Toronto, Canada
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See all 15 projectsBuild Me App is a Custom Software Development company specializing in tailored software creation and end-to-end software development solutions. Reviews highlight a 100% satisfaction rate, praising their agile approach, timely delivery, and ability to accommodate changes efficiently. Clients are particularly impressed with the team's responsiveness and ability to handle complex project requirements seamlessly.
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$10,000+$25 - $49 / hr250 - 999Washington, DC
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See all 35 projectsCode District is a custom software development company specializing in tailored software creation and full-stack development. They have received overwhelmingly positive feedback, with approximately 90% of reviews highlighting their professionalism, effective communication, and timely execution. Clients frequently commend Code District for their ability to understand project needs, suggest valuable improvements, and deliver high-quality, future-proof solutions.
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$5,000+$50 - $99 / hr10 - 49Houston, TX
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See all 23 projectsApp Maisters Inc. is a custom software development company specializing in tailored software and end-to-end software engineering solutions. Feedback from their clients reveals a consistent theme of satisfaction, with 100% of reviewers highlighting their technical expertise and project management skills. Clients frequently praise their ability to deliver high-quality, bespoke software solutions on time and within budget.
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$1,000+$25 - $49 / hr10 - 49Ahmedabad, India
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See all 31 projectsJunkies Coder - Mobile App Development Company is a versatile development firm specializing in mobile and web app design, blockchain, and user interface/experience improvements. They consistently receive high praise for their project management and technical expertise, with over 90% of reviews highlighting their strong alignment with client values and timely delivery. Clients commend their ability to seamlessly integrate complex functionalities, delivering user-friendly and secure applications.
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$1,000+< $25 / hr250 - 999Dhaka, Bangladesh
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See all 29 projectsEnosis Solutions is a bespoke software development company specializing in end-to-end software engineering and custom software creation. Out of 9 reviews, 100% expressed satisfaction with their project management, communication, and high-quality deliverables. The reviews highlight their ability to meet deadlines and adapt to clients' needs, with several clients praising their cultural fit and strategic consultation capabilities.
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$10,000+$50 - $99 / hr50 - 249San Francisco, CA
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See all 14 projectsKodexo Labs is a distinguished software development firm specializing in custom software creation, tailored software development, and full stack software development. The company receives high praise for its responsiveness, professionalism, and adherence to timelines, with 100% of reviews highlighting their value for cost and technical expertise. Clients appreciate their transparency and ability to deliver on project goals effectively.
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$10,000+$25 - $49 / hr50 - 249San Francisco, CA
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See all 25 projectsAzumo is a company specializing in Bespoke Software Development and Full Stack Software Development services. The overall feedback indicates a high level of customer satisfaction, with approximately 85% of reviews highlighting their flexibility, professionalism, and project management skills. Many clients appreciate their ability to transform visions into reality and their responsiveness to dynamic project scopes, emphasizing Azumo's strong adaptability and value-driven approach.
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$10,000+$25 - $49 / hr10 - 49London, England
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See all 17 projectsKeyToTech is a Custom Software Creation company offering services like mobile app development, platform website construction, and tailored software development. With 100% positive feedback from reviews, clients consistently praise their proactive communication, timely project delivery, and collaborative approach, while highlighting their ability to provide innovative solutions and efficiently meet project goals.
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$50,000+$150 - $199 / hr10 - 49Minneapolis, MN
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See all 20 projectsKRUTSCH is a custom software creation and full-stack software development firm that specializes in bespoke software development tailored to client needs. With over 90% positive feedback across reviews, clients consistently praise KRUTSCH for their effective project management, innovative design, and ability to translate complex technical concepts into understandable terms. Their expertise spans various industries, delivering intuitive and user-friendly solutions that meet diverse project requirements.
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$1,000+< $25 / hr50 - 249Ahmedabad, India
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See all 50 projectsDevsTree IT Services Pvt. Ltd. is a versatile software development company specializing in bespoke software development, app creation, and advanced AR/VR solutions. Their reviews highlight consistent professionalism, effective communication, and adherence to deadlines. Approximately 75% of reviews emphasize their technical expertise and capability to deliver tailored software solutions, while clients appreciate their transparency and efficiency throughout project engagements.
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$5,000+< $25 / hr50 - 249Surat, India
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See all 28 projectsiRoid Solutions is a custom software development company specializing in tailored software development and full-stack software development. The company is praised for its professionalism, responsiveness, and competitive pricing, with approximately 100% of reviewers highlighting their cost-effectiveness and ability to deliver quality work. Despite some minor concerns about resource allocation, clients appreciate their dedication and exceptional project management skills.
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$5,000+$25 - $49 / hr10 - 49Zirakpur, India
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See all 4 projectsCropsly Solutions Private Limited is a versatile IT service provider specializing in eCommerce, mobile app development, and comprehensive software solutions. Reviews highlight their strong project management, timely delivery, and exceptional client focus. Nearly all clients commend their adaptability and commitment, though clearer initial timelines for complex features were suggested for improvement. Overall, Cropsly consistently exceeds expectations, fostering fruitful partnerships.
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$25,000+$25 - $49 / hr10 - 49Barranquilla, Colombia
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See all 9 projectsWawandco specializes in Bespoke Software Development, delivering end-to-end software solutions with a focus on Custom Software Creation and Full Stack Software Development. Reviewers highlight their exceptional culture fit and responsive communication, with 100% positive feedback on timely delivery and quality. Approximately 75% of clients commend their alignment with company values and flexibility in scaling projects.
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$10,000+$25 - $49 / hr10 - 49Dubai, United Arab Emirates
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See all 30 projectsimaga ~ When UX & AI Both Matter is a Custom Software Development company focused on tailored solutions that integrate user experience and artificial intelligence. With a 100% positive client feedback rate, they are praised for their flexibility and effectiveness in delivering end-to-end software development projects, achieving significant improvements in conversion rates through personalized recommendations.
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$5,000+$50 - $99 / hr10 - 49Dover, DE
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See all 29 projectsDesignocracy specializes in Custom Software Development, providing tailored software solutions and bespoke software development services. Reviews highlight the team's exceptional project management, timely delivery, and ability to align with client needs, often exceeding expectations in both functionality and aesthetics. The company is particularly praised for its effective communication and creative customizations.
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$10,000+$50 - $99 / hr10 - 49Scottsdale, AZ
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See all 16 projectsDot Com Development is a custom software creation company specializing in tailored software development and full stack software development. Reviews highlight their strong project management skills and ability to integrate seamlessly with client teams. Approximately 100% of reviewers mentioned their effective communication and adaptability to changing project requirements, while some noted their premium pricing.
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$50,000+$150 - $199 / hr50 - 249Kent Town, Australia
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See all 9 projectsPixelForce is a bespoke software development company specializing in custom software creation and full-stack software development. With a reputation for aligning closely with client visions, they have received overwhelmingly positive feedback, with a notable 100% of reviewers highlighting their professional project management and collaborative approach. Clients appreciate their ability to understand business goals and deliver scalable, tailored solutions.
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$75,000+$50 - $99 / hr10 - 49Cluj-Napoca, Romania
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See all 25 projectsX2 Labs is a custom software development company excelling in tailored and end-to-end software engineering solutions. Across reviews, 100% of clients highlight their responsive project management and adaptability to changing environments. Approximately 67% of reviewers praise their outstanding communication and quick delivery, although one noted the need for earlier design collaboration.
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$25,000+$50 - $99 / hr50 - 249Žilina, Slovakia
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See all 25 projectsGoodRequest is a Custom Software Creation company specializing in tailored, end-to-end software development solutions. Consistently praised for their adaptability, technical prowess, and proactive approach, 95% of reviewers highlight their ability to deliver high-quality, innovative solutions on time. Approximately 80% of reviews commend their strong project management skills and customer-centric service, making them a preferred choice for complex projects.
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$25,000+$50 - $99 / hr10 - 49Buenos Aires, Argentina
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See all 20 projectsRevolt is a bespoke software development company providing tailored software solutions, focusing on UX redesigns and creating custom platforms. Reviews highlight their impressive project management skills and clean, bug-free code, with 100% positive feedback on their responsiveness and commitment. Clients appreciate their cultural fit and value for money, with 67% mentioning their alignment with company values.
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$25,000+$150 - $199 / hr10 - 49Atlanta, GA
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See all 16 projectsDragon Army is a full-stack software development company specializing in custom software creation, particularly mobile applications. The reviews indicate a 100% positive feedback, with clients highlighting their exceptional project management, strategic insight, and high-quality work. Notably, 100% of reviewers commend their understanding of business needs and technological aptitude, viewing them as an extension of their teams.
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$50,000+$50 - $99 / hr50 - 249Zagreb, Croatia
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See all 20 projectsNotch is a bespoke software development company specializing in tailored software development and custom software creation, offering services such as AI-driven solutions and full-stack software development. The company is praised for its seamless integration with clients' teams, proactive communication, and commitment to delivering on time and within scope. Approximately 100% of reviewers noted Notch's technical capability and partnership approach, resulting in positive project outcomes and high satisfaction.
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$50,000+$50 - $99 / hr10 - 49Warszawa, Poland
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See all 23 projectsiomico is a Custom Software Development company specializing in tailored solutions across various domains, including firmware, cloud infrastructure, and IoT device connectivity. With a 100% positive feedback rate, clients praise iomico for its technical depth, practical judgment, and responsive project management. Notably, 80% of reviewers highlighted their ability to adapt to evolving project needs, demonstrating expertise in software engineering and end-to-end software development.
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$25,000+$150 - $199 / hr10 - 49Seattle, WA
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See all 15 projectsUpTop is a custom software development company specializing in UI/UX design, frontend development, and mobile app creation, with a strong emphasis on bespoke and end-to-end software engineering. Overall, client reviews highlight UpTop's consistent project management, flexibility, and integration capabilities, with 100% of reviewers noting their impressive adaptability and collaborative approach.
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$10,000+$25 - $49 / hr50 - 249Ciudad de México, Mexico
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See all 38 projectsAncient is a custom software development company excelling in tailored software development and full-stack solutions. Across their reviews, 100% of feedback is positive, highlighting their commitment to customer service, efficient project management, and the ability to deliver complex projects on time. Approximately 70% of reviewers mention their cultural fit and alignment with company values as a standout feature.
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$25,000+$100 - $149 / hr10 - 49London, England
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See all 29 projectsKOTA is a creative digital agency offering custom software development services, particularly in web development. They excel at transforming complex ideas into simple, comprehensible online solutions, receiving 100% positive feedback for their attention to detail and effective communication. Clients appreciate their flexibility, professionalism, and ability to exceed expectations. Their reputation is built on delivering more value than anticipated, making them a trusted partner.
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$10,000+< $25 / hr50 - 249Noida, India
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See all 46 projectsAppventurez is a custom software development company known for its tailored and end-to-end software creation services. The company has received overwhelmingly positive feedback, with reviewers frequently highlighting their exceptional project management and responsiveness. Approximately 90% of clients commend their problem-solving capabilities and commitment to meeting deadlines, although some suggest improvements in quality assurance and UI/UX design.
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$5,000+$25 - $49 / hr10 - 49Toronto, Canada
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See all 8 projectsCanadian Software Agency Inc specializes in custom software creation and end-to-end software development. Across their reviews, clients consistently praise their attention to detail, technical expertise, and commitment to delivering tailored solutions. With 100% positive feedback, clients highlight their professionalism, timely delivery, and effective project management, with no areas for improvement noted. Their services enhance communication, collaboration, and customer satisfaction.
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$25,000+$50 - $99 / hr10 - 49Cluj-Napoca, Romania
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See all 14 projectsSalt & Pepper is a custom software development company specializing in tailored software development and full-stack solutions. The company consistently receives positive feedback for its ability to deliver complex projects on time, with 100% of reviewers praising their project management skills and adaptability. Clients commend Salt & Pepper for their seamless communication and integration with existing teams, with 75% specifically highlighting their exceptional cultural fit and professional delivery.
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$10,000+$50 - $99 / hr50 - 249Kraków, Poland
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See all 19 projectsImplex is a custom software development company specializing in bespoke software creation and tailored solutions across various industries. The reviews highlight their proficiency in end-to-end software development, receiving overwhelmingly positive feedback for their technical expertise, timely delivery, and excellent project management. Notably, 100% of reviewers praised their high-quality code, professionalism, and responsiveness, with minimal areas for improvement mentioned.
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$1,000+$25 - $49 / hr10 - 49Sahibzada Ajit Singh Nagar, India
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See all 9 projectsUltivic Pvt Ltd is a bespoke software development company specializing in custom software creation and full stack software development. The company consistently delivers high-quality, tailored solutions with 100% positive feedback from clients who praise their technical expertise, timeliness, and exceptional communication, with 67% highlighting their ability to exceed expectations in project execution and management.
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$5,000+$25 - $49 / hr250 - 999Cardiff, Wales
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See all 9 projectsDigiMantra is a custom software development company with expertise in tailored software development and full-stack software engineering. Clients consistently praise their effective project management, strong technical skills, and seamless communication, with 100% positive feedback emphasizing their commitment to quality and efficiency. Their ability to handle complex tasks and enhance platform functionality is frequently highlighted by 75% of reviewers.
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$10,000+$50 - $99 / hr50 - 249Wrocław, Poland
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See all 22 projectsAngry Nerds is a custom software development company specializing in tailored and end-to-end software solutions. Their reviews are overwhelmingly positive, with clients praising their proactive engagement and adaptability, as well as their impressive 100% uptime across projects. Notably, 86% of reviewers highlighted the company's exceptional project management and communication, showcasing their commitment to delivering high-quality, customer-focused results.
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$5,000+$25 - $49 / hr10 - 49Weston, FL
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See all 13 projectsMorean is a Custom Software Development company known for its high-quality software engineering and bespoke solutions. With 100% positive feedback, clients consistently praise Morean's exceptional project management, technical expertise, and alignment with company values. The firm excels in delivering end-to-end software development projects on time, demonstrating flexibility, commitment, and a collaborative approach across diverse industries.
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$1,000+$25 - $49 / hr50 - 249Ahmedabad, India
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See all 27 projectsLogicRays Technologies Pvt. Ltd. is a bespoke software development company specializing in the implementation and customization of platforms like Microsoft Dynamics 365 and Salesforce, as well as full-stack mobile and web application development. Across five reviews, the company demonstrated expertise in software engineering and tailored solutions, with 83% of clients praising their project management and technical capabilities. One review noted dissatisfaction, citing unresponsiveness and performance issues.
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$50,000+$50 - $99 / hr50 - 249İzmir, Türkiye
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See all 7 projectsAegeantic is a Custom Software Creation company specializing in tailored, end-to-end software development solutions. Reviewers highlight their exceptional project management and technical depth, resulting in 100% satisfaction and seamless delivery. Approximately 85% of reviews commend their responsiveness and technical expertise, with no significant areas for improvement noted.
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$10,000+$25 - $49 / hr10 - 49L'viv, Ukraine
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See all 29 projectsVolpis is a Custom Software Creation company specializing in tailored and full stack software development. The company is highly praised for its effective communication, dedication, and professionalism, with 100% of reviewers highlighting their responsiveness and commitment to timelines. Clients appreciate their ability to deliver high-quality software solutions, making them a trusted partner in end-to-end software development.
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$25,000+$50 - $99 / hr10 - 49Warszawa, Poland
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See all 12 projectsImpiCode is a bespoke software development company specializing in creating tailored software solutions, including full-stack and end-to-end software engineering. The company consistently receives praise for its technical expertise, effective communication, and project management skills. Approximately 100% of reviewers highlight their professionalism and alignment with client needs, with no significant areas of improvement noted.
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Undisclosed< $25 / hr10 - 49Pune, India
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See all 21 projectsLogiQuad Solutions Private Limited is a bespoke software development company excelling in end-to-end software development, including custom software creation and tailored software development. Overall, 88% of the feedback highlights their effective project management, timely deliveries, and responsive communication. Reviewers frequently mention their expertise in cloud computing and seamless integration, with 75% noting their proactive approach in suggesting improvements and solutions.
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$10,000+$100 - $149 / hr50 - 249New York, NY
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See all 16 projectsWiserBrand is a company specializing in Custom Software Development, offering tailored and full stack software engineering solutions. The reviews highlight their effective project management and seamless communication, with 100% of reviewers appreciating their technical skills and timely delivery. Clients praised WiserBrand's ability to balance technical prowess with practical business goals, resulting in successful project outcomes.
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$5,000+< $25 / hr1,000 - 9,999Brooklyn, NY
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See all 101 projectsTop Remotely is a bespoke software development company specializing in custom ERP systems and tailored software solutions. With a 100% positive feedback rate, clients consistently praise their technical expertise, effective project management, and the seamless integration of their solutions into existing workflows. Approximately 90% of reviewers highlight their ability to understand and address specific business needs, contributing to enhanced operational efficiency and user satisfaction.
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$25,000+$25 - $49 / hr10 - 49Calgary, Canada
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See all 17 projectsCruxlab, Inc. is a proficient company specializing in custom software development, offering tailored solutions across various sectors. The company consistently receives commendations for its excellent project management and innovative problem-solving abilities, with over 95% of reviews highlighting their adeptness in software engineering and responsiveness. Clients appreciate their commitment, with many describing them as integral partners in their projects’ success.
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$1,000+$25 - $49 / hr10 - 49Dhaka, Bangladesh
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See all 15 projectsWavespace Digital Agency LLC is a versatile digital agency specializing in web design, UX/UI design, and digital strategy, excelling in transforming complex concepts into intuitive and engaging digital experiences. The agency received overwhelmingly positive feedback, with 100% of reviewers praising their proactive communication, design precision, and strategic partnership approach. Notably, 67% of reviewers highlighted their ability to understand and address industry-specific needs, ensuring tailored solutions that drive measurable business results.
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Undisclosed$25 - $49 / hr250 - 999Chao Yang Qu, China
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See all 11 projectsShinetech Software is a custom software development company specializing in tailored and full-stack software development services. Across the reviews, 100% of the feedback is positive, highlighting their strong project management, timely delivery, and capability in handling complex projects. Notably, 80% of reviewers commend their ability to integrate seamlessly with client teams, and multiple clients appreciate their creative problem-solving and value for cost.
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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.