15 Best Mobile App Development Web Companies in Europe (2026)

Gilzor develops web and mobile products for startups, SMBs, and companies building or extending digital platforms. Its mobile work covers native iOS and Android development as well as React Native, with Swift, Kotlin, Objective-C, and SwiftUI among the technologies used by the team.

The company also handles UX/UI, backend integration, QA, app maintenance, store publishing, and product support. On the web side, Gilzor works across frontend and backend development using technologies such as React, Next.js, TypeScript, Node.js, and Python. Its European presence includes Warsaw, Poland, and Limassol, Cyprus.

Tapptitude works on digital products across mobile and web, with its main European base in Cluj-Napoca, Romania. Its mobile development services cover iOS, Android, and cross-platform applications, while the broader product offering includes UX/UI, product strategy, backend engineering, and web development.

The company can therefore work on products that need both a customer-facing mobile application and supporting web interfaces or administration tools. Its web capabilities include web applications, landing pages, and admin platforms, making Tapptitude suitable for teams building connected digital products rather than an isolated app.

A-listware combines mobile application engineering with web development and outsourced software teams. Its mobile capabilities cover native iOS and Android applications, hybrid and cross-platform development, and progressive web apps.

Web projects can include custom applications, portals, online stores, and SaaS products. A-listware has a UK headquarters together with development hubs across Ukraine, Poland, and Romania. Its delivery model can work for companies outsourcing an entire application as well as businesses that need additional engineers for an existing development team.

SoftPro focuses on custom software and web application development from Warsaw, with additional capabilities in cloud and AI. Its web engineering work covers frontend technologies such as React and Vue, together with backend development using Node.js, C#/.NET, Python, and PHP.

The company also works with progressive web applications, which can provide app-like functionality through a browser. Its current positioning is stronger around web applications, backend systems, cloud development, and PWAs than dedicated native iOS or Android development. That makes SoftPro particularly relevant when the browser-based and server-side parts of a multi-platform product carry much of the technical workload.

Mobian Studio works on software products with a particular focus on mobile development and AI. Its end-to-end product work covers iOS, Android, and Flutter applications together with backend systems, APIs, cloud infrastructure, and QA.

That combination can work well for mobile applications that depend heavily on server-side systems rather than functioning as standalone interfaces. The company supports both outsourcing and outstaffing models and works across sectors including IT, healthcare, fintech, and logistics. Mobian Studio operates from Tallinn, Estonia.

OSKI Solutions covers mobile, web, and broader software product development. Its mobile services include cross-platform applications for iOS and Android, with React Native and Flutter among the technologies used for mobile projects.

Work can also cover UX/UI, backend and API integration, testing, App Store and Google Play submission, and post-launch support. On the web side, OSKI develops custom applications, portals, and progressive web apps with technologies such as React, Next.js, and .NET. The company operates from Tallinn, Estonia.

Andersen works across mobile and web application development, supporting projects from early product planning through engineering, testing, launch, and maintenance. Its mobile development services cover native iOS and Android applications as well as hybrid and cross-platform products. The company also develops progressive web apps for businesses that want app-like functionality across mobile and browser environments.

Web development covers custom web applications, portals, dashboards, internal systems, and other business platforms. Andersen also handles frontend and backend development, UX/UI, APIs, cloud engineering, QA, and DevOps. Its European offices include Warsaw and Krakow in Poland, Munich in Germany, and London in the UK, giving companies several options for working with development teams based in Europe.

STRV designs and develops digital products across mobile and web. Its mobile teams work on native and cross-platform iOS and Android applications, while its web application practice covers frontend engineering, integrations, performance work, testing, deployment, and post-launch support.

The company can work from product planning and UX through engineering and later product support. STRV has a substantial presence in Prague, which gives European businesses access to a regional product development team rather than a company focused on only one technical layer.

21Century.tech operates as an AI-native, remote-first software studio focused on building and maintaining production software. Its work covers MVP development, full-stack features, legacy refactoring, third-party integrations, testing, documentation, and ongoing engineering.

The company emphasizes human ownership of architecture, security, business logic, and code review while incorporating AI into development workflows. Its current public positioning is stronger around full-stack software engineering than dedicated native mobile development, so its clearest fit for multi-platform projects is web development, integrations, supporting software, and MVP engineering.

Netguru handles both mobile and web product development from its base in Poland. Mobile projects can use native Swift and Kotlin or cross-platform technologies such as React Native and Flutter. Progressive web applications provide another option when a fully native product is not required.

Its web development practice covers technologies including React, Node.js, Python, and Ruby on Rails. Netguru also works across discovery, architecture, development, and post-release product work, making it suitable for organizations that want mobile interfaces and browser-based applications developed within the same wider product process.

Itexus has a more specialized focus than many general development firms on this list, with much of its work centered on fintech products. Its mobile capabilities cover Swift, Kotlin, Flutter, and React Native, while web interfaces can be built with technologies such as React and Angular.

Its product work includes mobile banking, digital wallets, trading platforms, and investment applications. These projects can also involve backend development, APIs, cloud engineering, QA, and integrations. Although headquartered in the United States, Itexus maintains a development office in Warsaw, giving it a direct European presence.

Waracle develops mobile and web applications with a particular emphasis on organizations operating in complex or regulated environments. Its mobile offering covers native iOS and Android development, while the web practice includes custom web applications, UX, development, and related digital product work.

Financial services, healthcare, energy, and mobility are among the areas in which the company works. Waracle can also connect application development with data and AI capabilities where these technologies form part of the wider product. The company has studios across the UK as well as a presence in Sofia, Bulgaria.

NetDevs focuses on enterprise software engineering, modern web frontends, backend development, cloud infrastructure, and AI. Its technology stack covers .NET, JVM, Node.js, Python, Go, React, Angular, and Vue.

The company is more strongly positioned around enterprise web and backend engineering than dedicated native mobile application development. For businesses developing mobile products, its role can therefore sit on the server-side, API, integration, cloud, or browser-based parts of the platform. The company operates from Warsaw, Poland, and works across areas including fintech, healthcare, logistics, and B2B SaaS.

Droids On Roids is a Wroclaw-based software company with a strong mobile product focus alongside web application development. Its services cover native and cross-platform products, product strategy, discovery, design, engineering, scaling, and ongoing maintenance.

For cross-platform development, the company works with technologies including Flutter and Kotlin Multiplatform. This makes Droids On Roids particularly relevant when the mobile application is the main product but web services, backend systems, product design, and long-term engineering also need to be coordinated within the same development process.

Krakow-based Miquido works across mobile and web application development, covering both native and cross-platform projects. Its mobile technology mix includes Swift and Kotlin alongside Flutter and React Native, giving companies several options depending on platform requirements and product strategy.

The company also develops custom web applications and supports projects through discovery, design, engineering, release management, and later product development. This combination is useful for businesses that expect a mobile application to share data, infrastructure, or functionality with a web product rather than operate separately.