Top Kotlin Multiplatform Companies

TouchZen Media

Verified

A boutique mobile app agency based in Orange County, CA, helping startups and growing companies design, build, and scale iOS, Android, and web apps.

5.0(42)

5.0

42 reviews

We’re more than a digital agency — we work as an extension of your team. From concept to launch, we design and build products that are functional, intuitive, and aligned with your goals. Since 2014, our focus has been on crafting experiences that feel effortless and meaningful for the people who use them — delivering results that stand out for their clarity and impact.

Weelorum

Verified

AI-Powered Mobile Apps | iOS, Android, Flutter, React Native | MVP in 8 Weeks

5.0(23)

5.0

23 reviews

WHY CLIENTS CHOOSE WEELORUM: We're not just another dev shop. We use AI-assisted development to deliver your mobile app faster, with fewer iterations, and at a fraction of the traditional cost. What makes us different: • AI-Accelerated Discovery Phase: 2 weeks instead of 4, same quality, half the cost • Claude AI + Cursor integration: 3x faster prototyping and code generation • Full-cycle delivery: Design → Development → QA → App Store launch • Long-term partnerships: avg 3+ years with our clients (Digiproduct — 5+ years) INDUSTRIES WE SPECIALIZE IN: • HealthTech (HIPAA-aware): Swim-Wise AI wellness platform • FinTech (Secure Payments): Jon D. Rock financial app • Social & Marketplace: Photo Shoot, Dating apps • E-Commerce: GetBooks digital bookstore • White-label for agencies: Digiproduct (5+ years) TECH STACK: iOS (Swift, SwiftUI) | Android (Kotlin, Jetpack Compose) | Flutter | React Native Node.js | Firebase | AWS | AI/ML Integration | Claude AI | Computer Vision OUR PROCESS: 1. Discovery Phase (2 weeks) — Research, wireframes, interactive prototype 2. Design (2–3 weeks) — UI/UX, design system, animations 3. Development (4–8 weeks) — Agile sprints, weekly demos, CI/CD 4. QA & Launch — App Store optimization, release management WHAT CLIENTS SAY: "We felt like collaborators, not clients" — Co-Founder, Social Media Startup "Released the final app in just three months" — CEO, Jon D. Rock "5+ years and counting" — Founder, Digiproduct

Goji Labs

Verified

An award-winning digital product agency that builds it right.

5.0(94)

5.0

94 reviews

For over a decade, we’ve helped leading brands launch 400+ digital products. Our expertise spans product strategy, UI/UX design, and software development. We believe no great venture should be held back by execution. That’s why we lead with strategy, work as true partners, and build products that scale. We help you define the right thing to build then design, develop, and launch it with clarity and purpose. Our partners have raised over $1B in funding—and counting.

OLEARIS

Full-cycle mobile and web product development for startups and growing teams

5.0(8)

5.0

8 reviews

🤝 Hey, we’re Olearis. We build mobile apps and web platforms for startups and growing teams, and we’re the kind of team you can actually rely on when things get real (deadlines, scope changes, “can we ship this faster?” moments). Usually we jump in at one of two points: - You have an idea and need an MVP that looks good, works smoothly, and can scale later. - You already have a product, but you want better UX, fewer bugs, faster releases, and a team that won’t disappear after launch. We cover the full cycle: discovery, UX/UI, mobile (Flutter, iOS, Android), web + backend, QA, analytics, launch, and long-term support. We’ve worked on SaaS, marketplaces, health & wellness apps, social apps, and business tools. If AI makes sense for your product, we can add it in a practical way (assistants, automation, smart content features). If you tell us what you’re building and where you’re stuck right now, we’ll suggest the cleanest next steps.

nextap solutions s.r.o

Your Long-Term Product Engineering Partner

5.0(3)

5.0

3 reviews

We’re a team of developers, designers, and product thinkers who partner with startups and scaleups to build and grow digital products that last. At NEXTAP, we don’t just write code — we become part of your journey. From MVP to millions of users, we’ve helped founders and teams scale with long-term collaboration, fast delivery, and real ownership. Over the past decade, we’ve worked with fintech companies like ClearScore and Bippit, as well as creative platforms such as Steller. We’ve grown teams from a single developer to 15+ people, delivered mobile and web products used by millions, and contributed to apps that were honored with recognition such as Apple’s Best of 2019 and the TravelTech AI Innovator 2024. Our expertise covers native iOS and Android development, modern web applications, and AI — including AI agents, content generation, and much more. No matter the stack, we care about clean solutions, maintainable code, and product decisions that make sense. Based in Czechia and working globally, we believe the best results come from building lasting relationships. We’re not just here to launch your product — we’re here to grow it with you.

Floating Dots

Connecting the dots between vision, product design, and custom software development behind successful web & mobile apps.

5.0(2)

5.0

2 reviews

Floating Dots is a product software development company founded in 2017, around a team of creative and enthusiastic people. Since then, we had successfully set up custom software services for companies with technological needs as well as start-ups. Our services are scalable so we can address the needs of businesses of all sizes. We are defined by our curiosity and passions. That’s why we are striving to ensure the high quality of the solutions we develop. The industries in which we have a deep understanding of the complexity of business processes are: - Education - Retail (e-commerce) - HR - Finance - Manufacturing - Healthcare - Social - Consumer products - Hospitality & Leisure We cover a complete set of services and abilities for for all stages of the software products lifecycle: - Web Development - Mobile Development - UI & UX Design - DevOps - Quality Assurance - Business Analysis - Technical Support Managing all the stages of the software lifecycle is what we do to ensure the success of your ideas: - ideation - architecture - design - development - quality assurance - operations - support

April Innovations

Verified

Full Stack Enterprise App Development Company

5.0(1)

5.0

1 review

We are a full stack software engineering company with focus on Banking and Fintech applications. We have serviced clients in USA, UK and India. Our core areas of expertise are Enterprise Apps, Artificial Intelligence, Mobile Apps, E-Commerce, Platforms. We have worked on projects that has half a million users and have delivered projects with Bank level security. We prefer to work on micro teams model where we build a micro team for each of our client that acts as an extended tech team for the client.

AppDevelopment is a leading software and mobile app development company that helps businesses build scalable, user-centric digital solutions. With over 25 years of experience and 1,500+ successful projects, the company specializes in Android, iOS, hybrid, and enterprise app development. AppDevelopment also integrates advanced technologies like AI to enhance performance, streamline operations, and drive business growth. Their end-to-end approach from ideation and design to deployment and maintenance, ensure high-quality, secure, and innovative applications tailored to diverse industry needs.

SunTec India

AI-Enabled IT & Digital Services Company

SunTec India is a globally recognized AI-enabled IT and digital services company with over 25 years of industry experience and 1500+ full-time employees. We specialize in a wide range of services, including Data Solutions (intelligent data operations for tech platforms, marketing, B2B, and AI/machine learning), eCommerce Support for leading platforms & marketplaces (product data management, eCommerce marketing, marketplace account management, customer support, and 3D product modeling), Digital Engineering (application development, AI/ML development, cloud managed services, DevOps services, UI/UX services, and QA and testing services), ePublishing, and Photo & Video Editing. Headquartered in New Delhi, India, we have successfully served over 8,500 clients across 50+ countries, including the US, Canada, UK, Australia, Germany, France, Sweden, Norway, Switzerland, and Singapore. With a 95% client retention rate, SunTec India is known for its client-first approach and a hybrid human-in-the-loop model that combines deep human expertise with AI technology—delivering customized, collaborative solutions rather than one-size-fits-all automation. Certifications ISO 9001:2015 & 27001 Certified HIPAA Compliant CMMI Level 3 Certified Microsoft Silver Partner nopCommerce Gold Partner Google Partner Shopify Partner Amazon SPN Partner AWS Partner Amazon Ads Verified Partner Walmart Solution Partner Recognitions Gartner- Top Global Data Validation and Enrichment Vendors Clutch.co - Top 10% Service Providers OA500 - Top 500 global outsourcing providers Clutch.co - Recognized as a global outsourcing leader Consecutive Clutch.co Global & Clutch Champion Winner GoodFirms - Best company to work with SelectedFirms - Top IT Services Company Research&Markets - Top Data Annotation Company Visit www.suntecindia.com to know about the company and services.

axiusSoftware

Award Winning, ISO 9001 & 27001 certified Software Development & Digital Consulting company

Incorporated in 2013, axiusSoftware is an Award Winning, ISO 9001 & 27001 certified Software Development & Digital Consulting company, with offices in India, USA, Singapore & China. We provide IT & Outsourcing, Digital Transformation Services, Business Solutions & Consulting. Operating for more than 11 years, axiusSoftware works with clients across the globe in 15 countries, to bring values through our cutting-edge technologies. With 93% repeat business, we aim to Build Long-Term, Value Centric Relationship with our Clients & Partners combined with Near-To-Client Centric Model to Deliver Results. With a leadership team of 33+ years of combined experience, we are an Agile, Experienced and Dynamic team with the right blend of Domain and Technical knowledge. We specialize in the following areas: Mobile APP Development Web Application Development Custom Software Development AI & ML IoT AR/VR/MR/Metaverse Digital Marketing Our Awards : "10 Most Promising AI Consultants" by SiliconIndia Magazine "Company of the Year" by TheCEOMagazine India "Brand of the Year" by CSR Times "10 Most Innovative Compainies to Watch" by BusinessConnect We help 1. Companies willing to develop Website/Portal/Web, Mobile & Other Trending Solutions 2. Global Companies willing to define Digital Footprints in China & Companies in China willing to expore the Global Market Not only customer-oriented but axiusSoftware is also an employee-centric organization. With our excellent Delivery and Engagement Model, we ensure quality delivery to customers with our Products and Solutions. To ensure the confidentiality of the project, we sign the Non-Disclosure Agreement (NDA) with our clients.

Vincit

Digital Development and Design Agency with strong AI capabilities

Vincit is a trusted partner for companies like Logitech, Cisco, The New York Times and LTK in developing their digital products and services. With roots in Finland and presence in the US since 2016 we are now over 500 experts ready to serve you. We combine meaningful user experience design to top-tier technical development for mobile, web and cloud. With the use of latest AI tools, we are able to deliver projects more efficiently and help your organization gain AI-Driven-Development capabilities throughout the collaboration. Ask us for free consultation and quote for your project. We are especially interested in challenging projects with established companies.

LinkSture

Bespoke eCommerce & Web Solutions That Drive Growth, Performance, and Long-Term Value

LinkSture is a bespoke eCommerce and web development agency helping brands, startups, and enterprises build scalable digital experiences that drive measurable growth. We specialize in custom Magento, Shopify, WordPress, and WooCommerce development — delivering high-performance, conversion-focused solutions tailored to each client’s business goals. Beyond development, we focus on strategy, UX-driven design, optimization, and long-term technical scalability. Our approach is simple: understand the business deeply, architect the right solution, and execute with precision. What sets us apart: • Performance-first development mindset • Clean, scalable, and maintainable code architecture • Strong focus on UX and conversion optimization • Deep eCommerce expertise across multiple platforms • Long-term partnership approach, not just project delivery We work closely with founders, marketing teams, and agencies worldwide to transform ideas into powerful digital commerce ecosystems. Whether it’s launching a new brand, scaling an existing store, or rebuilding complex infrastructure — LinkSture delivers solutions engineered for growth.

Prishusoft

Custom Web and Mobile App development company

Prishusoft is a global software development company that provides a wide range of solutions that include web and mobile app development, web design, e-commerce solutions and more. We have been developing custom business and enterprise applications for a long time, and our goal has always been to meet the needs of our clients. We also engage in offshore outsourcing software development to meet the needs of our global clients. Regardless of the location or nature of your business, be confident that we will meet its unique needs with our business and enterprise application development solutions. We provide purely customised web and app development services using powerful technologies such as Microsoft .NET, Angular JS, and React JS to provide highly satisfactory solutions while keeping your unique needs and budget in mind. We are here to help businesses at any level, from startups to enterprises. Our end goal is to make a difference. Our USP is that we love problems of any kind because our skilled team has solutions for them all, and if they don’t, they create one.

Code Neptune

AI, Web & Mobile App Development Solutions for Modern Businesses

Code Neptune Technologies is a software development company specializing in web development, mobile app development, and AI-powered solutions for businesses and startups. We help organizations build scalable digital platforms, modern applications, and intelligent systems that improve efficiency and support long-term growth. Our team focuses on creating reliable software solutions using modern technologies and best development practices. From building custom web applications to developing mobile apps and AI-powered tools, we work closely with clients to transform ideas into practical digital products. Code Neptune Technologies aims to help businesses strengthen their digital presence by delivering secure, high-performance, and scalable software systems designed for the evolving technology landscape.

Futured is a Czech mobile and web application development agency that creates custom iOS, Android, and cross-platform applications with a focus on precise code and refined design. They specialize in native development, Kotlin Multiplatform, and AI integration, serving clients across utilities, IoT, retail, telecommunications, media, culture, and fintech sectors.

Untile is a digital product development studio that specializes in bringing digital product ideas to life through design and engineering. They offer comprehensive services including digital product design, product development, mobile development, and collaborative strategy, working with clients from startups to corporations to deliver tailored digital solutions.

Hardsun is a software development company specializing in cutting-edge solutions using Angular, React.JS, Python, and AWS cloud infrastructure. They develop computer vision applications with machine learning for video surveillance, 3D modeling solutions for Industry 4.0, and complex process management systems including HR platforms.

Intobi

From idea to scalable software – we build products businesses trust and grow with.

Our advanced company is a creative and technological hub where we turn your ideas into virtual reality. We specialize in creating unique solutions tailored to your specific needs and requirements. Join us on a journey where success knows no limits! We develop custom software applications to ensure both monetary gains and savings 💰 As a tech partner, we take pride in our involvement across all phases of the project life cycle, encompassing business analysis, research, evaluation, UX/UI design, development, and support. We carefully analyze each client’s business, industry, and objectives – from improving operations and increasing revenue to enhancing user experience and scaling digital products. This allows us to deliver reliable, effective, and tailored solutions. At Intobi, we firmly believe that our success is tied to the success of our clients. ❓Why does your path to success lie with Intobi ❓ 🏆 TOP-RATED Software Development & Design Company; 🏆 Recognized as the Clutch Champion 2024 & 2023; 🏆 Recognized as the Clutch Global 2023; – We successfully developed over 100+ projects worldwide; – Our software solution will be tailored to your business, ensuring it assists in both generating revenue and reducing costs; – 100% transparency and 100% thorough approach; – A full cycle of software development and further support; – Direct access to a dedicated team; – Daily communications, weekly meetings & demos; If you're seeking a committed tech partner, feel free to reach out!

Sanddev

No software project too weird. No stack too exotic.

5.0(3)

5.0

3 reviews

Got a "crazy" idea your last dev team ran away from? Perfect - that's our speciality. SandDev handles custom software end-to-end: strategy, planning, AI integrations, blockchain, and whatever modern solution the cool kids are using this quarter. We're not just coders-for-hire. We're the team that figures out what to build, how to build it, and makes sure it actually ships. Stop explaining it to people who don't get it. Talk to us!