Top 10 Mobile App Development Companies in Zagreb – Updated 2026

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Five is web and mobile app development agency headquartered in New York with offices in Croatia. The 50+ person product team has been creating stunning, award-winning mobile products since 2008.

Five paired with a prominent language app to revamp their mobile user experience, from back to frontend. Thanks to the team’s customer-centric design approach, mobile downloads have more than doubled since the app’s relaunch. Five also delivered their work ahead of schedule and under budget, surpassing all expectations.

Headquartered in Croatia, DECODE HQ is a mobile app development partner for mid market and enterprise companies. Since 2012, the team of 50 specializes in mobile app development, web design, UX/UI design, and web development for client projects

A lifestyle product company partnered with DECODE to build and design an app that helped users track vitamins and minerals using a a hardware pen. They provided the client with software engineering capabilities and the company received over 1,000 downloads in the first week. 

Founded in 2008, Clover Studio is a mobile design and development company in Zagreb, Croatia. Their team of 21 focuses on mobile app and software development as well as UI/UX design. Their clientele includes smaller and mid-market sized companies in the business services, art, and education industries. 

Clover Studio developed a mobile app for a large music festival. The app mapped out the festival layout, using geolocation and AR features to highlight attractions. Since its launch, the received enthusiastic feedback from end-users from across the globe. Clover Studio’s success led to subsequent projects with the client.

Infinum is a software development company in San Francisco, CA. The 50+ team has equal experience in mobile and web development. They work with clients from a variety of industries, including business and financial services and automotive.

Infinum rebuilt a flight booking app for a startup. The original app was extremely buggy and the company needed further support. One feature Infinum developed allowed customers to sync their calendars to find flights that work around their schedule.

Undabot is an app development company based in Zagreb, Croatia. Founded in 2013, their team of fewer than 50 employees provides mobile app, custom software, and web development services.

Undabot developed a mobile application for their advertising client. The team developed both iOS and Android apps, which received positive internal feedback.

Founded in 2009 and based in Zagreb, Croatia, Bornfight is a software development company with a team of 57 employees. They specialize in UX/UI design, mobile app development, and web development for primarily midmarket employees in the entertainment, education, and hospitality industries.

Bornfight developed a web application for a healthcare company. They developed, designed, and configured the application, which the company would use as an organizational tool for conferences. The app was launched in time for the conference and was a success, outperforming the organizational process from previous years.

Q agency is a software development firm founded in 2013. Based in Zagreb, Croatia, the company has additional offices in Oslo, Zürich, Belfast, U.K., Toronto, and Los Angeles. With a team of 120+ employees, they specialize in web development, UX/UI, custom software development, and mobile app development. 

Q agency worked with an online boat rental platform. They provided developmental assistance for multiple projects. They revamped an inflexible CMS and created an updated account management system from scratch, and are currently adding features to it. After the project was completed, the client integrated it immediately and saw an increase in conversions.

Founded in 2013, Kod Biro is a software development agency that offers AR development, VR development, and mobile app development to their small business, mid-market, and enterprise clients in the advertising, marketing, arts and entertainment industries. Their 10 employees are based out of Zagreb.  

Kod Biro recently worked on app development for a marine hazard reporting company. They created a multilingual mobile app for that client which allows boaters to communicate with harbormasters.

Based out of Orinda, CA with satellite offices in India and Croatia, Daxima is a software development company. The team of more than 50 employees has been in business since 2003. They provide web, software, and mobile app development for clients around the world.

Daxima worked with a financial institution to update its client management system. The system had not been updated in 2 years and all changes required consensus from a co-op. Daxima completely redeveloped the client management system, incorporating the ability to aggregate data, integrate external programs, and grow along with the business.