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UK-based, ISO 27001-certified mobile app development agency


Mobile app creation

We design and develop secure, high-performing mobile apps for iOS and Android that are intuitive, reliable and built to scale. From customer-facing platforms to complex internal business tools, we create purposeful functionality, thoughtful user experiences (UX) and robust integrations that deliver tangible value.

Hero Image - One of the OWA client's systems displayed on a large screen
Hero Image - One of the OWA client's systems displayed on a mobile screen
Hero Image - Another of the OWA client's systems displayed on a large screen
500
+
PROJECTS COMPLETED
30
+
YEARS' EXPERIENCE
250
+
HAPPY CLIENTS
100
%
UK-BASED DEV TEAM
Solving complex digital challenges

Off-the-shelf software, hosting packages and technical support aren’t always the answer. Many organisations need applications tailored to their specific processes, legacy systems and security requirements. That’s where OWA comes in. We help you overcome technical obstacles with digital products, hosting and support solutions that work the way you do.

With a collaborative process that reduces risk
1
Discovery first
Understanding your systems, your users and your goals
2
Iterative design & delivery
Breaking complexity down to bite-size and adapting as we learn
3
Security at the core
Your ISO 27001-certified, Cyber Essentials-accredited Cloudflare partner
4
Partnership beyond launch
End-to-end service from build and go-live to ongoing hosting and support
Accreditation Logo - ISO
Cyber Essentials Certified - Logo
Cloudflare Logo
Crown Commercial Service  Supplier Accreditation
Accredited Channel Partner Accreditation
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WHY CHOOSE OWA?
What sets our mobile apps apart?

Take a look at how we’ve helped clients improve performance, modernise systems and solve complex challenges with our mobile app development.

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Custom-built
Every solution is designed specifically for your organisation.
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User-centred
UX and interfaces designed to simplify flows and improve adoption.
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Proven track record
30+ years of delivering secure solutions for business, public sector and not-for-profit organisations.
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Legacy modernisation
Integrate or replace older systems without disrupting day-to-day operations.
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Future-ready
Applications and products designed to adapt with you as your organisation grows.
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Secure hosting, responsive support
Peace of mind from fully managed UK hosting and 24/7 support and protection.
Real results, built to last

See how we’ve helped organisations launch new platforms and modernise legacy systems with measurable impact

With over 30 years of cross-industry experience in web application development, we’ll bring our deep understanding and sector-wide knowledge to your project.

Enterprise
Start-up
Public Sector
Government
Charity
Not-for-profit
Trade Union
Ecommerce
E-Learning
Advocacy
Education
Finance
Healthcare
Membership
Research
Training
Have more questions?
Have more questions? We’re here to help

We’re not just developers – we’re long-term partners, helping you to design, deliver and support a secure mobile app that evolves with your organisation.

App types, platforms & technical approach

What types of mobile app do you develop?

At OWA, we develop mobile apps for a wide range of sectors including commercial, healthcare and education. Our experience spans both consumer-facing and internal business apps from booking systems and dashboards to field-service tools and secure data platforms – we always tailor the solution around your users’ needs and your operational goals.

Do you build both iOS and Android mobile apps?

Yes. At OWA, we design and develop fully native apps for both iOS and Android, ensuring each version is optimised for the platform’s performance, user interface (UI) patterns and user expectations. If you need to launch on both stores quickly, we can also recommend the most efficient approach based on your objectives.

What about hybrid or progressive apps?

We build hybrid apps using modern cross-platform frameworks when they offer the best balance of speed, cost and maintainability. OWA also develops progressive web apps (PWAs) for organisations that want app-like functionality without requiring a store download. We’ll advise on the right approach based on features, performance needs and budget.

What’s the difference between an app and a responsive mobile-first website?

A mobile-first responsive website is designed around the needs of a mobile audience and will adapt to different screen sizes, but it still runs entirely in the browser. A mobile app is installed on the device and can access native features like push notifications, GPS, camera and offline storage. We can help you decide which option delivers the best experience for your users.

What technologies and frameworks do you use for app development?

We work with proven, modern technologies including native Swift and Kotlin, as well as cross-platform frameworks like React Native and Flutter. Our backend work spans PHP, Symfony, Node.js and other widely supported technologies – we’ll choose the stack that best fits your project’s long-term needs.

Can you build apps that work offline or with limited connectivity?

Yes – we can build offline-first apps that continue working even without a network connection. Data is stored locally and synced securely when the device comes back online. OWA can deliver solutions for field teams, remote workers and environments with unreliable connectivity.

Planning, discovery & project timelines

Do I need a specification or requirements to start an app project?

Not necessarily – we can help you shape the specification if you’re still exploring ideas. Our discovery phase turns your goals into clear technical requirements, user flows and architecture. This ensures development begins with a validated plan that reduces risk and avoids reworking down the line.

How long does it take to develop a mobile app?

Timelines vary depending on functionality, integrations and whether the app is native or cross-platform. Most projects take between eight and 16 weeks from design to launch. At OWA, we provide a clear roadmap and milestones at the start of the project so expectations are aligned from day one.

What is your development process for building a mobile app?

We follow a structured, transparent process: discovery, UX / UI design, iterative development, testing and launch. You see progress at every stage through regular demos and, after release, we provide ongoing optimisation, updates and support to keep your app secure and performing well.

Do you offer fixed-price or flexible development options?

Yes – we offer both fixed-price projects for clearly defined scopes and flexible, time-based arrangements for evolving or exploratory work. OWA will recommend the most suitable model based on your project’s complexity and how much certainty you need upfront.

UX, accessibility & user experience

What is your approach to user experience (UX) and user interface (UI) design for mobile apps?

We start with user research and prototyping to define clear user journeys and core functionality. OWA’s design team creates intuitive interfaces based on native design guidelines for iOS and Android. This ensures your app is both visually strong and simple for users to understand from the first tap.

Do your mobile apps meet accessibility standards (WCAG/AA)?

Yes – we can design and develop mobile apps in line with WCAG 2.2 AA best practices. This includes inclusive UX patterns, accessible colour contrast, screen-reader compatibility and clear interaction cues. Accessibility is built into our process from day one, not added as an afterthought.

Do you offer support with information architecture and site structure?

Absolutely – we help define information architecture (IA), navigation patterns and content flow as part of the UX design process. We ensure users can move through the app intuitively, completing key tasks with minimal friction. Layouts are validated through prototyping and user testing where required.

Integrations, legacy systems & data migration

Do you integrate mobile apps with external APIs, third-party services or existing web platforms and databases?

Yes. We regularly integrates mobile apps with APIs, external services, legacy systems, CRMs and bespoke web platforms. We ensure secure, reliable data flows and can also develop new APIs where needed.

Do you work with legacy systems or older backend technologies?

Yes – supporting legacy systems is a core part of OWA’s service offering. We regularly integrate mobile apps with older PHP, .NET, Java and bespoke backends, and can stabilise or modernise them where required. Our team ensures compatibility and secure data handling throughout.

Do you support data migration from an existing application or database?

OWA can assess your current data models, clean and transform legacy datasets, and migrate them safely to the new platform. We take care to maintain integrity, minimise disruption and ensure compliance throughout. Complex migrations are carefully planned and tested to avoid downtime.

Security, hosting & ongoing support

Can you build apps that handle sensitive or regulated data?

Yes – OWA builds apps that meet strict security, compliance and data-handling standards. This includes encrypted storage, secure APIs, role-based access and alignment with regulations such as GDPR. We regularly work with industries where confidentiality and resilience are essential.

How secure are your development and hosting processes?

OWA’s development and hosting processes follow strict ISO 27001 and Cyber Essentials security standards, ensuring your app and its data are protected at every stage. For hosting, we offer fully managed UK-based environments built for resilience, compliance and uptime.

Where do you host mobile apps?

Mobile apps themselves are hosted on the Apple App Store and Google Play Store, but the backend systems that power them require secure hosting. OWA provides UK-based, ISO 27001-certified hosting designed for speed, reliability and data protection – if you already have hosting in place, we can work with that too.

Do you help with submission to the App Store and Google Play?

Yes. OWA handles the full submission process, including preparing assets, managing certificates and responding to any review queries. We ensure your app meets store guidelines and is approved as quickly as possible.

Can you support or upgrade an existing mobile app?

Absolutely. OWA can take over existing iOS, Android or cross-platform apps, whether they need bug fixes, feature upgrades or a full rebuild. We’ll audit your codebase and recommend the safest and most cost-effective approach.

What technical support do you offer for mobile app updates and ongoing maintenance?

We provide ongoing support plans covering bug fixes, OS-level updates, security improvements and new features. Our UK-based team monitors your app’s performance and ensures it remains compatible with the latest iOS and Android releases. Support can be tailored to suit your organisation’s needs.

Ready to transform your digital presence?

Whether you’re looking to create a new application or facing legacy system challenges and performance bottlenecks, we're here to help.

UK-based design and development

Project planning and scope definition

Technical architecture recommendations

Migration strategy for legacy systems

Fully managed UK-based hosting and support

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