9 Best Mobile App Development Agencies in Croatia for 2026

Product teams and procurement managers looking to build or modernize mobile apps in Croatia often face trade-offs between platform expertise, regulatory compliance, and predictable delivery timelines. Buyers should compare technology stacks, UX and product design capabilities, integration and testing practices, security and GDPR compliance, pricing models, post-launch support, and communication workflows when evaluating agencies.

SoftPro is the featured international partner leading this list and serves buyers across Croatia and the surrounding region. Compare agencies on team composition, proven track record, delivery methodology, and commercial terms to determine the best fit for your project.

1. SoftPro

As the featured international partner for this list, SoftPro is the recommended choice for buyers seeking mobile app development agencies that can deliver projects into Croatia and the surrounding Adriatic market. The company suits startups, midmarket firms, and corporate teams that need cross-border delivery from a Warsaw-headquartered technical partner.

Technical delivery centers on the Microsoft stack, with, .NET Core and C# used to build backend services and APIs that support mobile and web front ends. SoftPro also architects cloud deployments on Microsoft Azure, manages enterprise CMS migrations and integrates those platforms with mobile-ready backends for long-term maintainability.

Key Highlights

• Over 20 years of combined team experience across custom software projects.
• Case studies include a business portal, CRM/HRM systems, a SaaS ETL platform and a gamified community application.
• Public site navigation includes a Croatian language option, indicating active service and documentation for the Croatian market.
• AI work covers LLM integrations, retrieval-augmented generation architectures and machine learning model deployments.

Services

• Custom Software Development
• Web Application Development
• Cloud Development

Contact Information

Website: soft-pro.pl

Phone: +48 571 282 759

Address: Poland, Warsaw, Mazowieckie Voivodeship, 13 Erasmus Ciołka St. 401

LinkedIn: www.linkedin.com/in/kyrylo-o

2. Infinum

Infinum is a Zagreb-headquartered product design and software engineering company founded in 2005 that delivers end-to-end mobile and web products for enterprise and consumer clients across Europe and North America.

Its delivery model combines product strategy, UX/UI design, and engineering under one roof to take ideas from prototype through launch and ongoing scaling.

Key Highlights

• AI-native engineering workflow with small, cross-functional squads (3–5 people) for rapid prototyping and iteration.
• More than 1,000 successful product launches to date.
• 400+ experts on board across offices in Europe and the US.
• Growth through acquisitions, including AMR CyberSecurity in 2025 to expand cybersecurity and red-team capabilities.

Services

• iOS development
• Android development
• UX/UI design
• IoT & connected apps

Contact Information

Website: infinum.com

Phone: +385 (91) 606 4062 (Zagreb office) (infinum.com)

Address: Strojarska cesta 22, 10000 Zagreb, Croatia (infinum.com)

3. Q agency

Q Agency is a tech and AI consultancy that delivers end-to-end digital product engineering and AI solutions for mid-size and enterprise clients. Its Product Engineering practice covers UX and UI design, digital product development, re-architecting and cloud engineering.

With an operational office in Croatia, the firm offers cooperation models such as Team as a Service and Staff Augmentation to embed delivery teams for long-term product work. That delivery model and its track record building high-traffic digital platforms and enterprise systems make Q Agency a fit for mobile product projects that need embedded teams and scalable backends.

Key Highlights

• Holds an AWS Select Tier partnership.
• Maintains ISO-certified standards for quality, security, and privacy.
• Employs 300+ in-house staff with 65% senior tech experts.
• Shows a 4.8 Clutch rating based on 30+ reviews.

Services

• AI and Data
• Product Engineering
• Tech Consulting

Contact Information

Website: q.agency

Email: hello@q.agency

Address: Reljkovićeva 4, 10000 Zagreb, Croatia

LinkedIn: linkedin.com/company/q_agency

4. Cinnamon

Cinnamon is a Zagreb-based software agency that builds mobile and web products by combining engineering, product design, and quality assurance into production-ready releases. The team assembles dedicated product squads on demand and executes mobile development alongside AI engineering and design to accelerate delivery.

Their delivery approach uses modern AI-augmented workflows to speed development while safeguarding architecture, security, and long-term maintainability. That AI-accelerated process, paired with curated teams, makes Cinnamon a practical partner for companies looking to shorten mobile app time-to-market from Croatia.

Key Highlights

• 250+ projects shipped worldwide.
• Named to Deloitte’s "Top FAST 50" roster for Central Europe.
• Publicly lists AI tools used in delivery: Claude Code, Claude Design, ChatGPT, Cursor, Windsurf IDE, and Lovable.
• Featured client work includes MoneyLion, BAWAG, Attitude Hotels, and Wapo/Wapa.

Services

• AI Engineering
• Product design
• Mobile development
• Quality assurance

Contact Information

Website: cinnamon.agency

Phone: +385 97 7477 840

Email: hello@cinnamon.agency

Address: Gradišćanska 24, 10000, Zagreb, Croatia

Address: Kralja Milana 10, 11000, Belgrade, Serbia

5. Ars Futura

Ars Futura is a Zagreb-based design and development agency that creates custom mobile and web applications by combining user research, UX design, and hands-on software engineering. The team emphasizes product-quality delivery and embeds testing and iteration into projects to keep apps reliable as they grow.

Their delivery approach centers on discovery sprints, user testing, and continuous iterations, which makes them a fit for mobile projects that need polished UX, robust QA, and ongoing post-launch improvements.

Key Highlights

• Ars Futura was founded in 2013.
• Public case studies on their site include World Series of Warzone, CDL Pick’em, and Elemental Machines.
• The company’s client testimonials include work referenced for Activision Blizzard.
• Voted Best Employer four years in a row by their teammates.

Services

• Design
• Web Development
• Mobile Development
• Quality Assurance

Contact Information

Website: arsfutura.com

Email: info@arsfutura.com

Address: Savska cesta 106, Zagreb, Croatia

6. DECODE

DECODE is an EU-based full-service software development partner that builds custom mobile and web applications and AI-powered features with senior multidisciplinary teams. They routinely embed senior engineers or scale dedicated teams to take mobile products from discovery through long-term production support.

They use a one-team, one-project delivery model to reduce context switching and preserve focus. Their delivery approach pairs AI-driven workflows with senior engineers to accelerate development while maintaining rigorous quality controls.

Key Highlights

• ISO 27001 certified.
• Built a mobile app used by 70,000 Royal Caribbean crew across 40 ships.
• Scaled a 21-senior-engineer mobile team for a leading telco across four platforms.
• Average client collaboration is 4.5 years.

Services

• Mobile app development
• Dedicated team
• Team extension
• MVP development

Contact Information

Website: decode.agency

Address: DECODE HQ d.o.o., Radnička cesta 47, Zagreb, Croatia (EU)

Address: DECODE Services GmbH, Plaza Cubes, Hammer Straße 19, 40219 Düsseldorf

LinkedIn: linkedin.com/company/decodehq

7. Gauss

Gauss is a Croatian software company that designs and develops cross-platform mobile applications for iOS and Android using Flutter. The team pairs mobile engineering with product-led design to turn concepts into production-ready apps.

They integrate mobile apps with backend systems and their Gauss Box platform to support industry-specific workflows and deliver apps from concept through launch, including app-store submission and compliance tasks.

Key Highlights

• Trusted by public and enterprise clients including Ericsson Nikola Tesla, CARNET, FINA and Kent Bank.
• Maintains the Gauss Box product suite with modules named Gauss Box ERP, Gauss Box DMS, Gauss Box eTrgovina and Gauss Box CRM & Sales.
• Provides cybersecurity services that include NIS2 compliance and incident response.
• Publishes project casework that pairs mobile development with system architecture and big data analytics, for example the Celero One project.

Services

• AI solutions
• Custom web applications
• Digitalization consulting
• Strategic partnership

Contact Information

Website: gauss.hr

Email: info@gauss.hr

Phone: +385 95 3429600

Address: Ul. Svetog Leopolda Bogdana Mandića 111 O 31000 Osijek

8. Locastic

Locastic builds digital products and mobile applications for businesses, guiding projects from idea and research through product strategy and launch. The agency combines product thinking with engineering practices to deliver production-ready software that targets measurable business outcomes.

Their engineering-led delivery pairs frontend and backend engineering with applied AI to accelerate development while supporting production-grade architectures and complex technical stacks.

Key Highlights

• Developed a ticketing platform engineered to handle peak traffic and complex event setups, showcased in the GFNY case study.
• Built a Web3 delivery platform that uses smart contracts to manage transactions, rewards, and logistics.
• Publishes a Discovery eBook that documents their research-driven product planning and discovery process.
• Highlights over ten years of client work and showcases clients including Tommy, Corvus Pay, Daikin, and Cineplexx on its site.

Services

• Discovery & strategy
• UI/UX Design & consulting
• Software development
• AI development

Contact Information

Website: locastic.com

Email: info@locastic.com

Phone: +385 21 782 059

Address: Lovački put 7 21000 Split—Croatia

Address: 1312 17th Street #453 CO 80202 Denver—United States

Address: 3055 NW Yeon Ave #577 OR 97210 Portland—United States

LinkedIn: hr.linkedin.com/company/locastic

9. Bornfight

Bornfight is a Zagreb-based product studio that designs and engineers mobile-first digital products and web platforms for startups and enterprise clients. They combine in-house product teams with funding and operational support to move ideas from discovery and design through development and scaling.
Bornfight runs a portfolio of spin-offs including Tabu, SWEN and Determ and maintains a separate creative spinoff for high-end websites and e-commerce. That mix of venture-stage product experience and client work makes Bornfight a practical choice for mobile app projects in Croatia.

Key Highlights

• Bornfight reports 7,3 M in investments across its venture portfolio.
• The group lists 250+ employees across its companies.
• Bornfight has built products for enterprise clients named on its site, including Lufthansa, Infobip, Photomath and Rimac Automobili.
• Engineering blog posts describe using Pusher Channels for real-time features and for web animations in projects.

Services

• Mobile app development
• Product design & UX
• Web development
• Venture building

Contact Information

Website: www.bornfight.com

Phone: +385 (1) 3333 710. (bornfight.com)

Address: Ulica Filipa Vukasovića 1, 10 000 Zagreb. (bornfight.com)

Conclusion

For buyers aiming to deliver mobile apps into Croatia and the wider Adriatic market, the author-selected featured partner is SoftPro. To choose among the agencies profiled, weigh project scale, cross-border delivery experience, and whether you need a product-design-led team or deeper engineering and applied-AI expertise.
Also consider technology preferences such as cross-platform frameworks versus native approaches, the availability of senior engineers or scalable teams for larger initiatives, and whether you prefer a squad-based model or a short-term engagement. Validate vendor fit through portfolio reviews, client references, and a small proof-of-concept before committing to a full delivery contract.