Top 60 Cross Platform App Developers in Bucharest
The Best of December 2025Looking for a top cross platform mobile app development company in Bucharest?
Cross-platform mobile applications have benefits that outweigh those of native applications if your users interact with your business on both Android and Apple products. Cross platform app development entails building a mobile app that’s compatible with multiple operating systems. Cross-platform, or hybrid apps, use a single codebase, which means you don’t need separate apps with separate technologies to appeal to customers using Android or iOS. Because of this single codebase, cross platform apps are less costly to create and maintain.
Most hybrid apps will use either Ionic or React as a development framework. React is a JavaScript framework that allow apps to support Android and iOS natively, while Ionic uses JavaScript, HTML5, CSS, and Sass for hybrid apps, desktop apps, and progressive web apps. Choosing an app developer with the right skillset to fit the technology framework your app needs is a good place to start when interviewing app development companies.
To assist you in your search for a partner, we’ve compiled this list of the top cross platform app developers in Bucharest. Browse descriptions, feedback, and awards to find which can best suit your company’s needs.
List of the Best Bucharest Cross Platform Mobile App Development Companies
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31$10,000+10 - 49 employeesBucharest, RomaniaRead More
Appsmart is a custom software development firm. The small team is in Bucharest, Romania. Their services include custom software development, web development, and mobile app development.
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GlovoIndustries
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32$5,000+10 - 49 employeesBucurești, RomaniaIn București, Romania, Yellow! GNU is a website development firm. The team focuses on Web Development and Mobile App Development.Read More
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Personetics Bitdefender Tel Ad ElectronicsIndustries
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33$5,000+2 - 9 employeesBucurești, RomaniaApplication development firm HunterByte Digital S.R.L. Was launched in 2023. The small București, Romania-based team provides mobile app development and AR/VR development.Read More
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34$5,000+10 - 49 employeesBucurești, RomaniaRead More
Based in Wien, Austria and București, Romania, Altasoft Software Solutions is an IT staff augmentation company. The agency focuses on IT staff augmentation, custom software development, web development, mobile app development, and more and is small.The agency was founded in 2021.
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35$5,000+10 - 49 employeesBucurești, RomaniaSquid40 is an UX agency. Their small team of employees is located in București, Romania and London, England. Their team offers UX/UI Design and Mobile App Development.Read More
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36$25,000+2 - 9 employeesBucurești, RomaniaClear Maze, a software development firm, focus on Custom Software Development and Digital Strategy. They were launched in 2012.Read More
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37Undisclosed10 - 49 employeesBucurești, RomaniaSoftware development company SBP Romania focuses on Custom Software Development and Mobile App Development. They are in București, Romania and Amsterdam, Netherlands.Read More
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38Undisclosed250 - 999 employeesBucurești, RomaniaSoftware development company Arnia Software focuses on Custom Software Development and IT staff augmentation. They were established in 2006.Read More
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39$5,000+50 - 249 employeesBucurești, RomaniaTeamArt is a software development company launched in 2006. The firm offers Custom Software Development and Web Development.Read More
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40Undisclosed50 - 249 employeesBucharest, RomaniaThe Hive is a Tunis, Tunisia-based Application Management & Support company. They specialize in Application Management & Support and Web Development and were founded in 2017.Read More
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41$5,000+2 - 9 employeesBucurești, Romania99 Code Lines is a mobile app development firm. Their small team of employees is located in București, Romania. Their team provides Mobile App Development and Web Design.Read More
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42$1,000+10 - 49 employeesVoluntari, RomaniaInnovations Staffing Services is a small Voluntari, Romania-based other application development company. They specialize in other application development, custom software development, web development, mobile app development, and more and were launched in 2022.Read More
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43$25,000+10 - 49 employeesBucurești, RomaniaWave Motion Labs, a custom software development company, was launched in 2014. The team specializes in Custom Software Development and Web Development.Read More
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44$10,000+10 - 49 employeesBucurești, RomaniaIn Anaheim, California and București, Romania, Hartmann Industries is a social media marketing company. They offer Social Media Marketing and Pay Per Click.Read More
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45$5,000+50 - 249 employeesBucharest, RomaniaClarisoft Technologies is a custom software development firm. Their team is based in Bucharest, Romania. The firm offers Custom Software Development and Mobile App Development.Read More
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46$25,000+2 - 9 employeesBucurești, RomaniaInteo IT Development is a software development firm. Located in București, Romania and Brașov, Romania, their team provides Custom Software Development and Mobile App Development.Read More
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47$10,000+10 - 49 employeesBucurești, RomaniaUnder Development Office is a Blockchain company. The team is headquartered in București, Romania, and their services include Blockchain and Mobile App Development.Read More
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48$1,000+50 - 249 employeesBucurești, RomaniaINDRIVO is a custom software development firm. They are based in Chișinău, Moldova and București, Romania and have midsize team. They provide Custom Software Development and Web Development.Read More
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49$5,000+10 - 49 employeesBucurești, RomaniaWebby-Soft is a website development firm. Based in București, Romania and Brașov, Romania, the company was established in 2016. Their team offers Web Development and Custom Software Development.Read More
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50$5,000+10 - 49 employeesVoluntari, RomaniaRead More
Web development company CubyCode was established in 2014. Their small team is based in Overland, Missouri. CubyCode provides web development, mobile app development, and blockchain.
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51$10,000+10 - 49 employeesBucurești, RomaniaIT staff augmentation company Webventure Development is located in București, Romania. Their services include IT staff augmentation and Custom Software Development.Read More
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Pro TVIndustries
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52$5,000+10 - 49 employeesBucurești, RomaniaWebsite development company Codegile was founded in 2014. In Brașov, Romania and Cluj-Napoca, Romania, the team provides Web Development and API Development.Read More
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53$25,000+50 - 249 employeesBucurești, RomaniaWebsite development firm 2B INTELLIGENT SOFT focuses on Web Development and Mobile App Development. They are headquartered in București, Romania.Read More
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54$5,000+2 - 9 employeesBucurești, RomaniaNevexo is a small website development firm. They offer web development, Artificial Intelligence, custom software development, mobile app development, and more and were founded in 2022. The agency is based in București, Romania.Read More
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55$5,000+2 - 9 employeesBucurești, RomaniaBroadmark is a branding firm launched in 2022. Their services include Branding and Print Design.Read More
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56$10,000+2 - 9 employeesBucurești, RomaniaLaunched in 2020, SAS Technologies is a software development firm. Located in București, Romania, the team specializes in Custom Software Development and Back Office Outsourcing.Read More
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57$5,000+10 - 49 employeesBucurești, RomaniaWebsite development firm Inobi Solutions is in București, Romania. They provide Web Development and Mobile App Development.Read More
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58Undisclosed10 - 49 employeesBucurești, RomaniaTARAinteractive is a small custom software development firm launched in 1991. Their services include Custom Software Development and E-Commerce Development.Read More
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59$1,000+Freelancer employeesBucurești, RomaniaAVDigitalSolutions is a small mobile application development firm. They offer Mobile App Development, Web Development, and UX/UI Design and were launched in 2023.Read More
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60$5,000+10 - 49 employeesDudu, RomaniaRead More
InAppo, a mobile app development firm, is based in Kyiv, Ukraine. The small company was founded in 2019. Their services include mobile app development, application management & support, web development, custom software development, and more.
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CodemotionIndustries
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