Mobile App Development UK
Native iPhone and Android apps, built to last.
BuildApps designs, builds and supports native mobile apps for iOS and Android. Swift and SwiftUI for iPhone, Kotlin and Jetpack Compose for Android, built for speed, accessibility and every platform feature.
Fast, accessible and store-ready.
Everything a native app needs, from the first commit to App Store and Google Play approval.
Launch day. Handled.
We prepare store listings, screenshots and privacy labels, submit for review and manage a staged rollout. Launch day feels calm, not chaotic.
What we build.
Native apps for iPhone, iPad and Android, designed around the people using them.
iPhone and iPad. Swift and SwiftUI.
Apps that feel at home on iOS, from widgets and notifications to Apple Pay and offline use.
Android. Kotlin and Jetpack Compose.
Fast and reliable across the wide range of Android devices your users carry.
Prototypes. Tested before the build.
Clickable designs tested with real users, so changes cost hours, not weeks.
Accessible. From the first screen.
VoiceOver, TalkBack and larger text sizes designed in, not bolted on.
Secure. Data protected.
Encrypted storage, secure sign-in and accurate privacy labels.
Store launch. Handled for you.
Listings, submission, review and release under your own developer accounts.
From idea to the App Store.
Six steps, with a working build on your phone every week or two.
- 01
Discovery
Who the app is for, what it must do first and what it connects to.
- 02
Design and prototype
Clickable designs tested with real users before the build.
- 03
Native build
Swift and Kotlin, with a preview build on your phone every sprint.
- 04
Device testing
Tested on real iPhones and Android devices, including accessibility checks.
- 05
Store launch
Listings, review and a staged release under your own accounts.
- 06
Support
Monitoring, OS updates and a roadmap shaped by real usage.
Case studies
Mobile apps we've built
Clinical mobile ordering platform
We designed and built the iOS, Android and dashboard platform clinicians use to prescribe and manage leg braces.
Read case study ›
AR in live healthcare and retail settings
Augmented reality deployed in stores, clinics and social care, where reliability and accessibility were critical.
Read case study ›
Safeguarding platforms for colleges and health providers
Compliance, auditability and duty of care built into every screen.
Read case study ›Questions
Mobile app development FAQ
Should my app be native or cross-platform?
Native is the right call when performance, offline use or deep platform features matter most. If you need iPhone, Android and the web from one team on a tighter budget, React Native is often the better fit. We recommend one during discovery.
How much does a mobile app cost?
Price follows scope. A proof-of-value build starts from £15k, and a full design spec with a dedicated team runs up to £140k. Read more in custom software development costs.
How long does it take to build a mobile app?
A focused first version usually takes a few months. Discovery sets a realistic timeline, and we recommend launching a smaller first release and building on it.
Do you publish the app to the App Store and Google Play?
Yes. We handle store listings, submission, review feedback and release, under your own developer accounts so you own the app.
Will the app work offline?
It can. Native apps can keep data on the device and sync when a connection returns. We plan offline use during discovery if your users need it.
Can you take over an existing app?
Yes. We audit the code, stabilise what is live and keep it moving. See app support and maintenance.
Start a project
Have an app in mind? Let's talk.
Start with a 30-minute call with our product lead. We'll tell you honestly whether we're the right team.