Top 30 Mobile App Developers in Northern Ireland
The Best of July 2025Looking for a top mobile app development company in Northern Ireland?
Building a mobile app is expensive. In fact, it can cost $10,000 to $150,000, unless you want an out-of-the-box solution with a DIY app builder. So, choosing the right app developer is important because it can save you time and money and result in an app that makes your business stand out.
As you begin the process of hiring an app development company, remember to define the type of app you want before starting conversations with developers. How complex your app idea is will determine your budget and the skill level you need in an app developer. Then, once conversations begin, ask for portfolio items, reviews, and references. Be sure to bring up timeline, too, so you align on expectations.
Overall, with about 90% of time on mobile spent in apps, investing in a mobile app for your business may help attract customers and get your brand in front of more people.
To assist you in your search for a partner, we’ve compiled this list of the top mobile app developers in Northern Ireland. Browse descriptions, feedback, and awards to find which can best suit your company’s needs.
List of the Best Northern Ireland Mobile App Development Companies
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1Undisclosed10 - 49 employeesBelfast, Northern IrelandRead More
Sugar Rush Creative is an app and software development agency based in Belfast. The company was founded in 2003. Since then, it has become a leading digital agency in Northern Ireland and the UK, employing around 10. Sugar Rush Creative has provided market-leading mobile apps, digital animations and web software to clients in industries such as public service, healthcare, education, hospitality, compliance, and many more.
Clients
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2$50,000+50 - 249 employeesLurgan, Northern IrelandGCD, a software development company, was launched in 1999. The midsize team offers Custom Software Development, Mobile App Development, Web Development, UX/UI Design, and more. The company is headquartered in Lurgan, Northern Ireland and Dublin 2, Ireland.Read More
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3$50,000+50 - 249 employeesBelfast, Northern IrelandRead More
Instil Software is a software engineering firm based in Belfast, Northern Ireland. Founded in 2005, Instil has about 30 employees that work across a variety of industries. They offer custom software development, mobile app development, cloud consulting and software integration, IoT, and web development.
Industries
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4$10,000+10 - 49 employeesLisburn, Northern IrelandScaffold Digital is a software development firm. They are located in Lisburn, Northern Ireland and have a small team that provides Custom Software Development, Mobile App Development, Web Development, UX/UI Design, and more. The firm was launched in 2008.Read More
Clients
University of UlsterIndustries
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5$1,000+2 - 9 employeesDownpatrick, Northern IrelandTriggerAppy Ltd is a Downpatrick, Northern Ireland-based custom software development company. The small team focuses on Custom Software Development, Web Development, Mobile App Development, and Other Application Development. The firm was launched in 2012.Read More
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6$1,000+10 - 49 employeesBelfast, Northern IrelandRead More
The House Of Code is a mobile app development company. Established in 2019, the small agency is located in Belfast, United Kingdom and Kraków, Poland. Their services include mobile app development, custom software development, web development, and other IT consulting and SI.
Industries
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7$25,000+2 - 9 employeesBelfast, Northern IrelandNigma Software is a software development company established in 2020. The small Belfast, Northern Ireland-based team offers Custom Software Development, Web Development, Mobile App Development, Artificial Intelligence, and more.Read More
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8$1,000+10 - 49 employeesBelfast, Northern IrelandLaunched in 2020, DJINN DIGITAL is a software development firm. Their small team is located in Belfast, United Kingdom. Their services include custom software development, mobile app development, application management & support, ux/ui design, and more.Read More
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9$1,000+10 - 49 employeesAntrim, Northern IrelandMedia One Group LLC is a mobile app development company based in Los Angeles, California and Antrim, Northern Ireland. The team provides Mobile App Development and Marketing Strategy.Read More
Industries
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10$5,000+10 - 49 employeesBelfast, Northern IrelandRead More
Vindicta Digital is a digital agency in Belfast, Liverpool, and Leeds, United Kingdom. Founded in 2016, they have about 8 employees that serve clients in a variety of sectors. Services include branding, social media marketing, and SEO.
Industries
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11$1,000+2 - 9 employeesBelfast, Northern IrelandApptaz, a web development company and app development firm, is based in Belfast, Northern Ireland. The team focuses on Web Development and Mobile App Development.Read More
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12$5,000+2 - 9 employeesBelfast, Northern IrelandRead More
Erised, a web development firm, was launched in 2021. The small team focuses on web development, custom software development, mobile app development, and e-commerce development. The firm is based in Leeds, United Kingdom.
Industries
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13$5,000+10 - 49 employeesBelfast, Northern IrelandENGEN, a web design company, was founded in 2018. The team offers Web Design and Web Development.Read More
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14$100,000+1,000 - 9,999 employeesBelfast, Northern IrelandUnosquare, LLC is a custom software development firm. They offer Custom Software Development, IT staff augmentation, Digital Engineering, UX/UI Design, and more and were established in 2009. Their large team is headquartered in Portland, Oregon; Guadalajara, Mexico and Belfast, Northern Ireland.Read More
Clients
Axos Financial, Green Dot Bank, GTreasury, G2 Risk Solutions and Blue Owl Private Equity Stitch Fix and IDX Harvard and McGraw Hill Athena Health and Foundation MedicineIndustries
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15$10,000+10 - 49 employeesLisburn, Northern IrelandVITABYTE SOFTWARE is a software development company. The Lisburn, Northern Ireland-based team offers Custom Software Development and Web Development.Read More
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16$5,000+50 - 249 employeesNewry, Northern Ireland3rd Digital is a small Ahmedabad, India-based mobile application development company. Founded in 2017, the team specializes in mobile app development, web development, custom software development, ux/ui design, and more.Read More
Industries
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17$5,000+2 - 9 employeesBelfast, Northern IrelandAY, a branding agency, is located in Belfast, Northern Ireland. They specialize in Branding and Graphic Design.Read More
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18$10,000+10 - 49 employeesBelfast, Northern IrelandDawson Andrews is an user experience agency. Based in Belfast, Northern Ireland and Sydney, Australia, their small team focuses on UX/UI Design and Product Design. The agency was founded in 2015.Read More
Clients
Niice.coIndustries
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19Undisclosed2 - 9 employeesAghadowey, Northern IrelandRanyart Systems is a small website development firm and mobile app development company in Aghadowey, Northern Ireland. Their services include Web Development and Mobile App Development.Read More
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20$10,000+10 - 49 employeesBelfast, Northern IrelandBlue Monkee Digital, a SEO services firm, is located in Belfast, Northern Ireland. Founded in 2007, the team offers Search Engine Optimization and Web Design.Read More
Industries
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21Undisclosed10 - 49 employeesBelfast, Northern IrelandIT WEB and CLOUD is a Digital Strategy company. They are headquartered in Belfast, Northern Ireland and have small team. They offer Digital Strategy and Social Media Marketing.Read More
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22$10,000+10 - 49 employeesNewcastle , Northern IrelandGospelware is a small app development firm based in Newcastle , Northern Ireland. Their services include Mobile App Development and UX/UI Design.Read More
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23$1,000+2 - 9 employeesBallymena, Northern IrelandQuantico XP is a Plano, Texas-based web design agency. Their services include Web Design and Product Design.Read More
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24Undisclosed2 - 9 employeesMoy, Northern IrelandTotallyAppenin is a CRM consulting and SI company. They are in Moy, Northern Ireland and have small team. They focus on CRM consulting and SI and Web Design.Read More
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25$10,000+10 - 49 employeesNewry, Northern IrelandLaunched in 2012, RKM Software is a custom software development firm. The small team offers Custom Software Development and Mobile App Development.Read More
Industries
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26$5,000+Freelancer employeesBelfast, Northern IrelandBased in Belfast, Northern Ireland, CausewaySoft LTD is a small web development company. The team provides Web Development and Mobile App Development.Read More
Industries
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