Mobile App Development London
If your business needs something in your customers' hands — a portal, a service app, a booking tool, an internal operations app — we build it. Mobile apps that are built well feel obvious to use. They load fast, they work offline where needed, and they do exactly what your customers or staff need them to do without unnecessary complexity.
What’s included
- —Cross-platform development (iOS and Android from a single codebase)
- —Custom UI design built around your brand
- —User authentication and secure login
- —Push notifications
- —Offline functionality where required
- —Integration with your existing website or web app
- —App Store and Google Play submission
- —Ongoing updates and maintenance
More detail
Not every business needs a mobile app, and we'll tell you honestly if we think a well-built mobile-optimised website would serve you better. But for businesses where an app genuinely makes sense — where users will return regularly, where offline access matters, where push notifications are part of the service, or where a native mobile experience is important for brand perception — a properly built app is worth the investment.
Ramdex builds cross-platform mobile applications, which means one codebase supports both iOS and Android. This is significantly more cost-effective than building two separate native apps and, with modern frameworks, delivers a performance and experience level that is more than sufficient for the vast majority of business applications.
Every mobile app project starts with a scoping phase where we map out the user journeys, the data flows, and the integrations before writing a line of code. This avoids costly rebuilds and scope creep mid-project.
Common questions
How much does it cost to build a mobile app in the UK?
Mobile app development in the UK typically starts from £8,000–£15,000 for a relatively straightforward application — one with a defined set of features, a clear user journey, and no highly complex integrations. Apps with real-time features, payment processing, complex APIs, or multiple user types naturally cost more. Ramdex builds cross-platform apps (iOS and Android from a single codebase) which is more cost-effective than building two separate native apps. Every project is scoped individually — get in touch with a description of what you need and we'll give you an honest estimate.
Do I need both an iOS and Android app?
In most cases, yes — your potential users are split between iPhone and Android devices, and if your app only works on one platform you're excluding a significant portion of your audience. The good news is that cross-platform development means you don't need to pay to build two separate apps. Ramdex builds using cross-platform frameworks that produce a single codebase deployable to both iOS and Android, which is more cost-effective and easier to maintain long-term.
What's the difference between a mobile app and a mobile website?
A mobile website is a website accessed through a phone's browser — it's responsive and works on mobile, but it's still a website. A mobile app is downloaded from the App Store or Google Play and installed on the device. Apps can access device features that websites cannot — camera, contacts, GPS, push notifications, offline storage — and they often feel faster and more integrated with the phone. Whether you need an app or a well-optimised mobile website depends on what you're trying to achieve. Ramdex will advise you honestly on which makes more sense for your specific use case.
Ready to talk?
Tell us what you need. We’ll come back with a clear recommendation and a realistic quote.