Struggling with apps that can’t scale or meet unique workflows? Our cutting-edge custom mobile software development services in UK deliver 500+ next-generation mobile application solutions and custom-built mobile software for UK businesses.
From native and cross-platform software to cloud-enabled deployment, we offer end-to-end mobile software solutions with real-time performance tracking and 100% custom codebase.
Square Root offers top-of-the-line custom software development services in London with a focus on building scalable mobile software for startups and businesses across the UK. As a top custom mobile software development company, we serve as a trusted app development partner and certified mobile software provider UK backed by a 4.9/5 average client rating on Clutch and Trustpilot. Our experienced app developers in UK deliver solutions with localised mobile development services, ensuring full compliance and intuitive UX.
As a top-rated UK-based app development agency, we offer 24/7 dedicated UK support, quick turnarounds with an average project delivery time of 10–14 weeks, and 98% client retention across mobile projects. From creating custom mobile software to supporting 150+ custom mobile software delivered in sectors like fintech, retail, and health our team of mobile experts for UK industries positions us as a prominent UK software outsourcing firm in London and beyond.
We offer innovative custom mobile software development services UK for startups and enterprises looking to build business and customer-facing mobile software. Our apps are built with Flutter, React Native, Kotlin & Swift, and tested for full compatibility with 90%+ devices. We specialise in developing custom mobile software using platform-specific and multi-platform mobile apps, compliant with GDPR and FCA standards.
We build high-performance mobile software development solutions with native Android & iOS software optimized for UK-targeted Apple and Android app services. Apps achieve 99.95% crash-free rating, 35% faster speed, and are 100% compliant with App Store and Google Play.
We deliver hybrid mobile software solutions using Flutter and React Native developers that ensure unified UI/UX across platforms. These cross-platform app frameworks cut cost by 40% and reduce launch time by 50% with performance parity to native apps.
Our enterprise mobility solutions include field service mobile software and internal business mobile tools. We deliver B2B enterprise software with 256-bit encryption, mobile ERP/CRM integration, and 99.99% uptime, securely scaling across 1000+ users.
We build B2C mobile software development apps to boost customer loyalty. Our customer engagement mobile software includes e-commerce and retail apps, booking platforms, and personalised push notifications, achieving a 4.8/5 user rating and 99.5% retention in 30 days.
We deliver end-to-end mobile user experience design with UI design for Android and iOS. Each interface includes app wireframing and prototyping, WCAG 2.1 AA-compliant designs, and 100% responsiveness, driving 95% user satisfaction and 30% faster onboarding.
Choosing the right custom mobile software agency matters when your product success depends on precision, speed, and user satisfaction. We’re UK reputed custom mobile software specialists backed by expert developers & designers who deliver secure, scalable apps that meet local needs. Our agile mobile software teams use a proven sprint model, offering weekly demos that keep you informed at every step.
As a security-compliant software partner, we build mobile apps that pass GDPR and FCA audits. We provide access to local mobile software experts, a 24/7 UK-based support team, and SLA-backed support & maintenance, ensuring long-term success. With a 97% client satisfaction rate, we bring confidence, clarity, and quality to every mobile software project.
We as top custom mobile software development UK uses a proven step-by-step model designed for speed, precision, and scale. Our mobile development lifecycle focuses on delivering value from idea to launch ensuring every step aligns with user goals and business objectives.
We begin with structured requirement analysis to define your project scope, user needs, and tech constraints. This sets a clear foundation for the full requirements to release lifecycle.
We use a custom Agile development methodology built around weekly sprint reviews and feedback loops. This keeps you involved while enabling flexibility and continuous improvement.
We develop functional MVPs within 6–8 weeks, validating real user needs and preparing for scalable features. This shortens timelines and supports a 40% reduced go-to-market time.
Our DevOps approach includes CI/CD pipelines to automate testing and builds, supporting continuous delivery for mobile software across platforms with consistent updates.
Every release goes through structured software testing and deployment stages. We focus on usability, speed, and error handling achieving 99.9% post-launch stability in real user environments.
Our skilled custom mobile software developers in UK build industry-specific mobile software solutions that meet the real needs of UK sectors. We specialise in sector-focused mobile development that aligns with FCA, NHS, and GDPR compliance. From healthcare to logistics, our team has delivered 50+ apps across 12 industries.
Each platform is regulatory-ready, built for scale and localisation, and optimised for performance. Our UK industry-compliant mobile systems have helped clients achieve a 35% operational efficiency boost through automation and intuitive interfaces. We focus on secure, agile, and scalable mobile apps that empower UK businesses to lead in digital transformation.
The cost of developing custom mobile software in the UK varies by complexity. Simple apps typically range from £10,000 to £50,000, medium-complexity apps can cost £50,000 to £150,000, and complex apps may exceed £150,000. Factors like platform, features, and ongoing maintenance affect the total cost.
Developing custom mobile software typically takes 3 to 9 months. Simple apps may take 3 to 4 months, medium-complexity apps require 5 to 7 months, and complex apps can take 8 to 9 months or more. Project scope, platform, team size, and required features all influence development time.
Square Root is one of the UK’s most trusted custom mobile software development companies due to its proven track record, transparent processes, and focus on high-quality, scalable solutions. It delivers projects on time, maintains strong client relationships, and offers expertise across Android, iOS, and cross-platform development.
Mobile software development uses technologies like Swift and Objective-C for iOS, Kotlin and Java for Android, and Flutter, React Native, and Xamarin for cross-platform apps. Backend development often uses Node.js, Python, or Ruby on Rails, and cloud services like AWS or Firebase support scalability and performance.
The latest trends in mobile software development include AI integration, 5G optimization, cross-platform frameworks like Flutter, super apps, voice-enabled interfaces, and enhanced security features. Developers focus on performance, real-time data processing, and immersive user experiences through AR, machine learning, and predictive analytics.
Yes, we provide mobile app maintenance services. These include bug fixes, performance optimization, OS and SDK updates, feature enhancements, and security patches. Regular maintenance ensures apps remain compatible, secure, and efficient across devices and platforms.
We offer engagement models such as fixed-price, time and material, and dedicated team for hiring mobile software developers. Fixed-price suits defined projects, time and material works for flexible scopes, and dedicated teams provide full-time, long-term collaboration with complete control over development.