MCD Systems is a leading UK app development company delivering high-quality iOS, Android, and cross-platform mobile applications for businesses across Britain. From innovative startups to established enterprises, we help organisations transform their ideas into powerful mobile experiences.
Based in the North East of England, we offer London-quality app development at competitive regional rates. Our experienced team of UK app developers combines technical excellence with business acumen, ensuring your app not only works flawlessly but delivers real value to your users and your bottom line.
Whether you need a customer-facing mobile app, an internal business tool, or a complex enterprise solution, our UK development team has the expertise to deliver on time and on budget.


Our UK iOS development team builds native iPhone and iPad apps using Swift and SwiftUI. We follow Apple's Human Interface Guidelines to create apps that feel natural to iOS users and take full advantage of the platform's capabilities.
From App Store submission to ongoing maintenance, we handle the entire iOS development lifecycle. Our apps integrate seamlessly with Apple services including iCloud, Apple Pay, Sign in with Apple, and push notifications.

We develop native Android applications using Kotlin and Jetpack Compose, following Material Design principles for intuitive user experiences. Our Android apps support the full range of devices, from budget smartphones to premium tablets.
Our UK Android development team ensures your app meets Google Play requirements and performs well across the fragmented Android ecosystem. We optimise for battery life, handle different screen sizes gracefully, and implement robust offline functionality.

Need to reach both iOS and Android users without doubling your budget? Our cross-platform development using Flutter and React Native delivers native-quality apps from a single codebase, reducing development time and costs by 30-40%.
Cross-platform development is ideal for MVPs, startups with limited budgets, and businesses that need to move fast. We'll help you decide whether native or cross-platform is the right choice for your specific requirements.

We build secure, scalable enterprise mobile apps that integrate with your existing systems. Whether you need a field service app, internal communication tool, or customer-facing portal, our enterprise solutions are built to handle demanding business requirements.
Our enterprise apps feature robust security, SSO integration, offline capabilities, and seamless backend connectivity. We understand compliance requirements including GDPR and industry-specific regulations.


Working with a UK app development company means same timezone collaboration, no language barriers, and a shared understanding of the British market. Your intellectual property is protected by UK law, and you can meet your development team in person when it matters.
MCD Systems offers the best of both worlds: the quality and reliability of UK development with the competitive pricing of our North East location. You get a dedicated team who care about your success, not a rotating cast of offshore developers.
UK app development costs vary significantly based on complexity, features, and platform. A simple MVP or basic app typically costs between £15,000-£40,000. Mid-complexity apps with custom features, user authentication, and backend integration range from £40,000-£100,000. Complex enterprise apps with advanced functionality can exceed £100,000. Our North East location allows us to offer rates 20-40% lower than London agencies while maintaining the same quality standards.
Development timelines depend on your app's complexity and scope. A simple MVP typically takes 2-3 months from kickoff to launch. Mid-complexity apps with multiple features take 3-6 months. Complex enterprise applications can take 6-12 months or longer. We use agile methodology, delivering working software in 2-week sprints so you can see progress throughout the project.
The choice depends on your requirements and budget. Native development (Swift for iOS, Kotlin for Android) offers the best performance and access to platform features, but requires separate codebases. Cross-platform (Flutter, React Native) uses a single codebase for both platforms, reducing costs by 30-40% while delivering near-native performance. We'll help you choose the right approach based on your specific needs, timeline, and budget.
Yes, we offer comprehensive maintenance and support packages. This includes OS compatibility updates (critical as iOS and Android release new versions), bug fixes, security patches, performance monitoring, and feature enhancements. We recommend budgeting 15-20% of initial development costs annually for maintenance to keep your app running smoothly.
Absolutely. We handle the entire App Store and Google Play submission process, including creating store listings, screenshots, app descriptions, and managing the review process. We ensure your app meets all platform guidelines to avoid rejection, and we'll work through any feedback from Apple or Google until your app is successfully published.
Post-launch changes are a normal part of app development. We offer flexible engagement models including retainer agreements for ongoing development, time-and-materials for ad-hoc work, and fixed-price projects for defined feature sets. Many clients start with a retainer of 2-5 days per month to continuously improve their app based on user feedback and analytics.
If you have an idea that you would like to turn in to a mobile app then we’d love to hear from you