How to Become a Mobile App Developer in the UK
Mobile app developers build the apps on iPhones, Android phones and tablets, from banking and retail apps to games and health tools. Day to day you write code in Swift for iOS, Kotlin for Android, or a cross-platform framework such as React Native or Flutter, then test on real devices, fix bugs and release updates through the App Store and Google Play.
A degree helps but is not required. Employers mainly want proof you can ship working apps, so a portfolio of published or well-documented projects matters more than certificates.
Quick facts
- Starting salary
- £30,000 - £42,000
- Mid-career salary
- £50,000 - £80,000
- Senior salary
- £85,000 - £130,000
- Work environment
- Office or remote, mostly desk-based
- Time to entry
- 1 - 3 years
- Degree required
- Helpful but not required
- Category
- Technology
Compare pay across careers in the UK salaries by career report. Also in: High-paying careers, No-degree careers, Creative careers, Stable careers, Career change.
What a Mobile App Developer does
Build iOS and Android apps used on phones and tablets every day.
- iOS Developer - Build native iPhone and iPad apps with Swift.
- Android Developer - Build native Android apps with Kotlin.
How to become a mobile app developer in the UK
The main routes are a computer science or software engineering degree, a Level 4 Software Developer apprenticeship, a Level 6 Digital and Technology Solutions degree apprenticeship, or teaching yourself, with or without a bootcamp or a government-funded Skills Bootcamp in England. Whichever route you take, pick one platform to start: Swift and SwiftUI for iOS, which needs a Mac, or Kotlin and Jetpack Compose for Android. Publish at least one app, put the code on GitHub and apply for junior or graduate developer roles.
- Choose a starting platform: Swift and SwiftUI for iOS, which needs a Mac to run Xcode, or Kotlin and Jetpack Compose for Android.
- Work through Apple's or Google's free developer tutorials, then build a small app of your own that uses a real API, local storage and navigation.
- Learn Git, unit testing and debugging tools such as Xcode Instruments or the Android Studio profiler, as interviews often cover them.
- Publish an app to Google Play or the App Store, or document a polished project on GitHub with screenshots and a clear readme.
- Add a cross-platform framework such as React Native or Flutter once you are confident on one native platform, to widen the jobs you can apply for.
- Learn mobile accessibility, privacy permissions and app store review guidelines, which shape how apps are built and approved.
- Apply for junior mobile developer, graduate developer or software developer apprenticeship roles, and be ready for a take-home coding task.
| Route | How long | Cost | Best for |
|---|---|---|---|
| Self-taught or bootcamp with a portfolio | 12-24 months | Free to several thousand pounds | Career changers who learn well independently |
| Level 4 Software Developer apprenticeship | About 2 years | Paid by the employer | Earning while you learn |
| Computer science or software engineering degree | 3-4 years | Tuition fee loan | Graduate schemes and larger tech firms |
| Level 6 Digital and Technology Solutions degree apprenticeship | About 3-4 years | Paid by the employer | A degree without tuition fees |
How long it takes
Most people need 1 to 3 years to land a first developer job, depending on whether they study for a degree, take an apprenticeship or teach themselves. Focused self-learners with a published app can sometimes get there in about a year.
Mobile App Developer salary in the UK
Junior mobile app developers typically earn around £30,000 to £42,000. With a few years of shipping apps, mid-level developers usually earn £50,000 to £80,000, and senior, lead or specialist developers can reach £85,000 to £130,000. London, fintech and large consumer apps pay at the top end, while agencies and smaller firms outside London pay less. Deep native iOS or Android skills, plus experience with performance, security and app architecture, push pay up. Contractors charge day rates instead.
Key skills
- Swift or Kotlin
- React Native or Flutter (cross-platform)
- Mobile UX
- App store deployment
- Performance
Mobile App Developer FAQs
How do I become a mobile app developer in the UK?
Learn Swift for iOS or Kotlin for Android, build and publish at least one app, and keep your code on GitHub. Then apply for junior developer roles or a software developer apprenticeship. A computer science degree helps with graduate schemes but is not essential.
Do you need a degree to be an app developer?
No. Many employers hire on a portfolio and a technical interview. A degree or Level 6 degree apprenticeship helps with graduate schemes and larger companies, while a Level 4 Software Developer apprenticeship or a strong self-taught portfolio can get you into smaller firms and agencies.
How much does a mobile app developer earn in the UK?
Junior developers typically earn £30,000 to £42,000, mid-level developers £50,000 to £80,000, and senior or lead developers £85,000 to £130,000. Location, sector and your depth in native iOS or Android development make the biggest difference.
Should I learn iOS, Android or Flutter first?
Start with one native platform so you understand how mobile apps really work. Pick iOS if you have a Mac and an iPhone, or Android if you do not. Learn React Native or Flutter next, as many UK employers use them to ship to both platforms.
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