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Top Kotlin Development Companies

The Kotlin developer community surpassed 5 million users worldwide in 2024, with 60% of Android developers adopting Kotlin for app development. Source: JetBrains

Kotlin has rapidly become one of the most popular programming languages for building modern, efficient, and secure applications. As the official language for Android development and a powerful alternative for cross-platform and backend projects, Kotlin offers developers enhanced productivity, safety, and flexibility. Top Kotlin development companies specialize in leveraging this language to create seamless, scalable apps tailored to diverse industries, from fintech and healthcare to retail and enterprise solutions. By combining Kotlin’s expressive syntax with industry expertise, these firms deliver innovative solutions that ensure faster time-to-market, superior performance, and long-term business value for clients worldwide.

List of the Best Kotlin App Development Firms | Top Kotlin Development Agencies in the World

Aegis Softtech is a leading software development company established in 2003, delivering high-quality and scalable IT solutions to businesses across the globe. With expertise in web and mobile app development, AI/ML integration, enterprise software, data engineering, and cloud solutions, we help clients innovate and grow in the digital era. Our dedicated team of developers and technology experts is committed to… Read More
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    Employees: 50 to 100
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    Min. Project amount: Undisclosed
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    Country: Rajkot, India
Expert App Devs is a top-rated mobile app development company with a strong presence in India, USA, and UAE. We specialize in crafting custom mobile applications that help startups, SMEs, and enterprises turn their ideas into powerful digital solutions. Our team of experienced developers and designers build high-performance iOS, Android, and cross-platform apps tailored to meet unique business goals. From… Read More
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    Employees: 251 to 500
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    Min. Project amount: $5,000+
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    Country: Ahmedabad, India

FULLeSTOP

5 (2)
Fullestop stands as a leading web and mobile app development company in USA and UK, dedicated to transforming innovative ideas into digital reality. With a skilled team of developers, designers, and strategists, Fullestop crafts bespoke solutions that seamlessly blend creativity and technology. From cutting-edge websites to feature-rich mobile applications, our commitment to excellence ensures clients receive products that not only… Read More
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    Employees: 251 to 500
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    Min. Project amount: $25,000+
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    Country: Jaipur, India

aPurple

5 (1)
aPurple is a premier startup app development company, offering mobile app, SaaS, MVP, software, and web development services that transform innovative AI startup ideas into market-ready solutions that drive success. Our dedicated team of 200+ developers excels in various industrial categories, including taxi, logistics, food delivery, beauty services, errand services, e-commerce, grocery services, liquor delivery, telemedicine, and entertainment solutions. At… Read More
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    Employees: 251 to 500
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    Min. Project amount: $1,000+
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    Country: Ahmedabad, India
Netclubbed is a dynamic software development agency dedicated to crafting exceptional digital experiences. We understand that every business has unique challenges and opportunities, which is why we specialize in bespoke custom software development tailored precisely to your individual needs and objectives. Our talented team of designers and developers creates engaging web design and development solutions that not only look stunning… Read More
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    Employees: 0 to 10
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    Min. Project amount: $1,000+
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    Country: Noida, India

Flatirons

5 (2)
Flatirons is a design-forward custom software development consultancy helping startups, mid-market companies, and enterprises build scalable digital products. With expertise in SaaS, marketplaces, and healthcare solutions, Flatirons combines world-class engineering with exceptional UX/UI design to create software that is both powerful and intuitive. Their custom software solutions are not only highly functional but also elegant and easy to use, ensuring… Read More
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    Employees: 10 to 49
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    Min. Project amount: $50,000+
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    Country: Boulder, CO
BestPeers is a top-tier software development firm specializing in custom software, website development, UX/UI design, and full-stack solutions. They are dedicated to providing user-focused technology solutions, prioritizing quality, innovation, and on-time delivery. Their expert team handles a wide range of projects, from e-commerce platforms to HR portals, always aiming for high client satisfaction. BestPeers is recognized for its passion for… Read More
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    Employees: 251 to 500
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    Min. Project amount: $50,000+
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    Country: California, USA
Onex Software is a global technology company specializing in custom software development, mobile and web applications, AI, and enterprise solutions. With 7+ years of experience and 200+ successful projects, we empower businesses with innovative, scalable, and high-quality digital solutions. Read More
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    Employees: 11 to 50
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    Min. Project amount: $10,000+
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    Country: İzmir, Türkiye
Elite mCommerce develops native eCommerce mobile apps which supports eCommerce platforms such as Magento and PrestaShop. Presently, it is one of the leading eCommerce app development company. Elite mCommerce is an innovative eCommerce mobile app builder that provides ready-made mobile app solutions tailored for various businesses. Whether you run a retail store, grocery delivery service, meat delivery business, or use… Read More
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    Employees: 101-250
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    Min. Project amount: Undisclosed
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    Country: NJ, United States
In Time Tec South Korea is an award-winning software development company with a team of expert software developers and technology enthusiasts who always believe in delivering high value and security to clients. We are a group of over a thousand software engineers and consultants with clients all over the world. We offer a wide array of IT services and solutions… Read More
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    Employees: 1,000 - 9,999
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    Min. Project amount: $5,000+
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    Country: Seoul, South Korea

** Buyer's Guide **

What services do Kotlin development companies typically provide?

1. Android App Development

Kotlin is the official language for Android, and companies build feature-rich, secure, and scalable Android apps using Kotlin’s concise and expressive syntax.

2. Cross-Platform Development

Using frameworks like Kotlin Multiplatform, agencies create apps that run seamlessly across Android, iOS, desktop, and web with a shared codebase.

3. Backend Development

Many Kotlin development firms use Kotlin with frameworks like Spring Boot or Ktor to build robust, scalable backend systems and APIs.

4. Migration from Java to Kotlin

Companies offer smooth migration services for businesses moving legacy Java applications to Kotlin, ensuring better maintainability and performance.

5. Custom Software & Enterprise Solutions

From fintech to healthcare, Kotlin developers create tailored solutions that address specific enterprise needs, integrating modern features like AI, IoT, and cloud computing.

6. Code Audit & Optimization

Kotlin specialists provide code reviews, bug fixes, and performance optimization to improve existing applications.

2.Why choose Kotlin over Java for Android development?

1. Official Language for Android

Google officially endorses Kotlin for Android development, ensuring strong community support, regular updates, and better integration with Android Studio.

2. Concise and Readable Code

Kotlin reduces boilerplate code compared to Java, making applications easier to write, maintain, and debug. Developers achieve more with fewer lines of code.

3. Null Safety

Kotlin’s built-in null safety eliminates the common NullPointerException errors prevalent in Java, improving application stability and reliability.

4. Interoperability with Java

Kotlin is 100% interoperable with Java, allowing developers to use existing Java libraries, frameworks, and tools without rewriting the entire codebase.

5. Modern Language Features

Features like coroutines for asynchronous programming, extension functions, and smart casts make development faster, more efficient, and scalable.

6. Improved Developer Productivity

With less boilerplate, powerful IDE support, and fewer bugs, Kotlin boosts overall developer efficiency and speeds up project delivery.

3.How much does it cost to hire a Kotlin development company?

1. Average Hourly Rates

The cost varies by region. On average:

  • US & Western Europe: $70–$150/hour

  • Eastern Europe: $40–$70/hour

  • Asia (India, Nepal, etc.): $20–$50/hour

2. Project-Based Pricing

  • Small apps / MVPs: $10,000 – $25,000

  • Mid-sized apps: $25,000 – $60,000

  • Enterprise-grade solutions: $60,000+ depending on complexity, integrations, and scalability requirements.

3. Factors Influencing Cost

  • App complexity (basic vs. feature-rich)

  • Integration needs (APIs, databases, third-party services)

  • UI/UX design requirements

  • Maintenance & long-term support packages

4. Hiring Models

  • Dedicated Team: Best for long-term projects needing constant updates.

  • Hourly Engagement: Flexible for short-term or small fixes.

  • Fixed Cost Projects: Suitable for well-defined scopes with clear deliverables.

5. Value Beyond Price

Top Kotlin development companies also provide faster delivery, scalability, code quality, and post-launch support, which outweighs just looking for the cheapest option

4.Which industries benefit most from Kotlin app development?

1. FinTech & Banking

Kotlin is widely used in secure mobile banking apps, payment gateways, and digital wallets due to its safety features and seamless interoperability with Java.

2. E-Commerce & Retail

From shopping apps to customer loyalty platforms, Kotlin powers scalable, fast, and user-friendly mobile experiences that handle high transaction volumes.

3. Healthcare & Telemedicine

Kotlin enables the development of HIPAA-compliant apps, telehealth platforms, and patient monitoring solutions with strong data security and reliability.

4. Media & Entertainment

Streaming, gaming, and content delivery apps benefit from real-time performance, smooth UI, and scalability offered by Kotlin.

5. Logistics & Transportation

Kotlin supports fleet tracking, delivery management, and mobility apps that require efficiency, geolocation integration, and real-time updates.

6. Education & eLearning

With the rise of EdTech, Kotlin is ideal for building **interactive learning apps, test preparation platforms

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