With the ubiquitous use of smartphones, there’s a high demand to become a mobile app developer who create, design, and maintain the applications that can be used on their mobile devices. In this versatile and in-demand job, some mobile app developers work in the gaming and e-commerce industry. In contrast, others focus on health, education, and productivity apps. If you have a passion for coding, are creative, and enjoy taking on challenges, this might be your perfect career choice. This guide outlines the key skills and qualifications you need to become a mobile app developer and the steps you should take to get started.

What Are the Main Types of Mobile App Developers?

Those looking to enter the industry will likely fit somewhere into one of the following areas of specialization, each with distinct focuses and skill sets:

• iOS Developers: Specializing in building apps for Apple’s iOS platform, iOS developers use programming languages like Swift and Objective-C to create apps for iPhones, iPads, and other Apple devices. They work with tools like Xcode and must adhere to Apple’s development guidelines and standards.
• Android developers: Android developers are programmers who create apps for devices operating on the Android OS, the most popular operating system in the world. They use languages such as Kotlin and Java to build apps and tools such as Android Studio to test and run the software.
• Cross-platform Developers: These developers use libraries and tools to develop applications that run on both iOS and Android devices. React Native, Flutter, and Xamarin are some key technologies that can be used to build apps and write codes only once to run on multiple platforms. Hence, they give developers the opportunity to develop apps with less time and fewer resources.
• Back-end Mobile Developers: Software engineers who work on the back-end of mobile apps, building logic that processes and stores data on a server. Back-end developers work with databases, APIs (i.e., the publishing and consuming of data between systems), and cloud services to enable communication between the front-end (the bit the user sees and interacts with) and back-end systems.

The app developer you decide to become might depend on your interests, the devices you want to work with, and the programming languages you are comfortable with.

What Does a Mobile App Developer Do?

The roles and responsibilities of a mobile app developer are listed below-

• Developing and Building Applications: Developers undertake this task, taking application concepts and converting them into working software. Coding, user interfaces (UI), and features are written to match the requirements provided by clients or product managers.
• Debugging and Troubleshooting Code: This step is necessary because a successful app needs to work on all types of mobile devices and be free of errors known as bugs. A mobile developer checks the app, locates the errors or bugs, and then repairs the code.
• Optimizing App Performance: Mobile apps must be efficient in terms of speed, storage, and battery consumption. Developers work to optimize code, reduce app size, and ensure smooth performance across different devices and operating systems.
• Working with Designers and Stakeholders: Developers will also work with user interface (UI) and user experience (UX) designers, product managers, and other stakeholders to ensure that the UI, UX, and overall design and functions of the app adhere to the project’s goals and requirements and deliver what end users want.
• Running and Updating an App: Once an app is launched, its maintenance and development continue. Developers need to see what’s working and what’s not, and based on user feedback, they might add new features, fix bugs, or enhance the user experience.
• Integrating APIs and Third-Party Services: Mobile developers often incorporate APIs (application programming interfaces) or third-party services into their apps to provide payment gateway options, allow users to share via social media, provide location-based services, and other features.

The daily work of a mobile app developer depends on what kind of project or specialization they have. Still, all aim to create functional, user-friendly, efficient mobile apps.

Average Mobile App Developer Salary in the UK

The salary of a mobile app developer in the UK varies based on experience, location, and specialization. Entry-level mobile app developers can expect to earn between £25,000 and £35,000 per year.

With experience, salaries typically rise to between £35,000 and £55,000. Senior mobile app developers, particularly those with expertise in iOS or Android development, or those working in specialized industries like finance or gaming, can earn upwards of £60,000 to £80,000+ per year. Additionally, freelance or contract developers have the potential to earn more based on their projects and client base.

Mobile App Developer Skills

You’ll be a better mobile app developer if you have a combination of hard and soft skills, such as:

• Programming Language Proficiency: If you’re pursuing native app development, you’ll need to be fluent in Swift and Objective-C for iOS or Kotlin and Java for Android. Modern cross-platform development with popular frameworks such as Flutter (Dart) and React Native (JavaScript/TypeScript) will require you to be equally savvy with other programming languages.
• Background in Tools and Frameworks: Most apps are developed using tools like Xcode for iOS app development and Android Studio for apps that target Android devices. For creating apps that can run on multiple operating systems (e.g., Windows, Mac, Linux, iOS, Android), we have popular cross-platform frameworks such as Flutter and React Native.
• Sense for Mobile App Design and User Experience (UX): A good sense of mobile app design is crucial for designing good apps. Aspiring app developers should understand the basics of UI/UX design, user flows, and navigation patterns.
• Programming Skills: Familiarize yourself with the languages used for mobile app development, such as Java, HTML, CSS, and JavaScript for Android-based apps and Swift or Objective-C for iOS apps. Then, start writing your code.
• Problem-Solving and Debugging Skills: Being a good mobile app developer means you should be able to identify errors in your code, correct the application by debugging it, and develop solutions that work. Problem-solving and analytical thinking are critical to solving the problems that can arise while developing a mobile app.
• Knowledge of APIs and Back-end Services: A mobile developer’s main responsibilities are handling and structuring data. Mobile apps involve working with many external data sources and services. Therefore, a mobile developer must know how to use APIs and web services. The app has to interact with other servers through the internet to get access to data. Key concepts include working with APIs, web services, and back-end databases (such as Firebase and RESTful API).
• Adaptability and Continuous Learning: Mobile development changes with the times, and new programming languages, tools, and technologies are invented almost every month. A mobile developer should be able to adapt and constantly be updated on new industry technologies.
• Project Management and Teamwork: Although some developers work independently, many work in teams with other programmers, designers, and product managers. Good communication and teamwork skills allow developers to work effectively and complete projects on time.

Mobile App Developer Tips

Here are some tips for aspiring mobile app developers:

• Learn one platform (iOS or Android): If you are completely new to the mobile development world, you may want to learn one platform first and then decide whether to explore the cross-platform development option. Learning the basic principles of iOS or Android development will give you a firm foundation before you use a different approach.
• Build a portfolio of apps: Try building your native apps, such as calculators, to-do lists, and games, just to see if you like them. If you can build a portfolio of apps, that’ll be a huge asset for pitching to a boss or a client.
• Contribute to an Open-Source Project or Work for Hire or Freelance: By contributing to open-source projects on GitHub or by working for hire or freelance on websites like Fiverr, you can gain experience and build
• Familiarize Yourself With App Store Guidelines: If you’re building an iOS app, you need to familiarize yourself with Apple’s App Store Review Guidelines. And if you’re building an Android app, learn how to get your app into Google Play’s store by familiarizing yourself with Google Play’s guidelines.
• Stay Updated on Industry Trends and Technologies: Develop a passion for learning new technology trends in the industry. The mobile development environment is fluid; new frameworks, new languages, and new best practices always evolve in this space. Keep yourself updated by following blogs, joining developer communities, and participating in workshops or online courses.
• Learn UI/UX Design Basics: Learn how to build apps that users interact with and like. Learn UI/UX design to enhance the user experience; learn the basics of UI/UX wireframing, user-centered design, and prototyping.

Mobile App Developer Requirements

To succeed as an app developer, you most likely need the following skills, qualifications, and experience:

• Education Skills: A formal degree is not always necessary, but developers often have a background in computer science, software engineering, or other related fields. Many developers, though, are self-taught with a strong portfolio of apps and applicable skills.
• Learn appropriate programming languages: The languages for the platform you’ll be developing for—Swift or Objective-C for iOS, Kotlin or Java for Android, or JavaScript/TypeScript and Dart for cross-platform—are what you want to learn.
• Gain Practical Experience and Build Projects: Practice by creating mobile apps or working on open-source projects. Gain experience by building your mobile apps or contributing to open-source projects. This is not only a great way to practice but will also give you material to make a portfolio to present to future employers.
• Get familiar with development tooling and frameworks: If you’re building on iOS, you’ll need to know your way around Xcode. Building an Android app will require tools such as Android Studio, React Native, or even Flutter. If you want to build on the web, you’d better start getting really familiar with the developer tools in your browser.
• Know mobile development concepts and practices: Learn what is different about mobile—what are ‘mobile’ concepts, and how can you use them to maximize the effectiveness of your app? For example, accumulate knowledge about ‘mobile’ concepts such as responsive design, touch gestures, push notifications, and device storage.
• Join Developer Communities and Network: Use forums and online communities like Stack Overflow, Reddit, or GitHub, where developers share resources, inquire about various difficulties, and share information. Join other developer-oriented communities near your place to find and hone opportunities. Whether seeking employment, experts, or anything in between, networking is the key, and developer communities provide you precisely with that.

How to Become a Mobile App Developer

• Choose a Mobile Platform to Specialize In: Decide whether you want to develop apps for **iOS or Android, or if you prefer to work with cross-platform frameworks like React Native or Flutter. Each path has its own learning curve and benefits, so choose based on your interests and career goals.
• Learn the Programming Languages and Tools: Based on your platform of choice, start learning the required programming languages and development tools:
  • For iOS Development, learn Swift and Objective-C, and get familiar with Xcode as your primary development environment.
  • For Android Development, focus on Kotlin and Java, using Android Studio as your development tool.
  • For Cross-Platform Development, explore frameworks like Flutter (using Dart) or React Native (using JavaScript/TypeScript).
• Create a Portfolio of Mobile Apps: Once you’ve absorbed some basic theory, build small projects or contribute to an open-source project. A portfolio is a must; you should have at least a few fully developed and working apps in your portfolio that showcase your skills and ability to create apps with different functionalities. It’s also good to include apps that do different things, such as a to-do list app, a weather app, or a simple game.
• Research App Deployment and Publishing: Know what it takes to publish an app on Apple’s App Store (iOS) or Google Play Store (Android), including learning submittal standards, writing app copy and descriptions, designing app icons and screenshots, and leveraging app analytics.
• Intern or freelance: Have some real-life experience. This might be working for an agency or as a freelancer on real-world projects. Working on real apps will help you improve your skills and help you see what the full software development lifecycle is like.
• Stay current with the latest mobile development technologies and trends. Mobile technology and best practices are always changing, so make it a point to stay up-to-date. Follow mobile development blogs, join online communities like Stack Overflow or Reedit’s programming channels, and seek out tools such as webinars, coding boot camps, or workshops to help keep you up-to-date.
• Apply for Junior Developers: If you have a portfolio of apps, it’s time to apply for jobs. Look for junior developer positions (or their equivalent) at tech companies, startups, or app development firms and emphasize your practical grounding, coding prowess, and love of mobile development.

Get Qualified as a Mobile App Developer

Google Applications Efficiency, Mastering Amazon S3: Essential Concepts and Applications, Google Applications Efficiency Fundamentals, Efficient Google Applications

Frequently Asked Questions

Why Should You Become a Mobile App Developer?

Mobile app development is a creative, challenging, and highly sought-after career. If you enjoy problem-solving, have a passion for coding, and want to build products that impact millions of users worldwide, this field offers exciting opportunities and the chance to work on cutting-edge technology.

Is Mobile App Development a Good Career Choice for You?

Yes, mobile app development is a great choice if you are passionate about technology, enjoy building apps from scratch, and have the patience for continuous learning. The demand for mobile apps continues to grow, making this field a stable and rewarding career choice.

What Are the Salary Prospects for Mobile App Developers?

In the UK, junior developers typically earn between £25,000 to £35,000 per year. Experienced developers can earn between £35,000 and £55,000, while senior developers, especially those in specialized roles or with cross-platform expertise, can earn upwards of £60,000 to £80,000 or more.

Which Qualifications Are Necessary for a Career in Mobile App Development?

While a formal degree in Computer Science, Software Engineering, or a related field is beneficial, it is not mandatory. What’s most important is having strong coding skills, proficiency in mobile development tools, and a portfolio of apps that demonstrate your capabilities.

Do You Need Experience Before Becoming a Mobile App Developer?

While you don’t need professional experience to start learning, practical coding experience is essential for building your skills. Create your own projects, contribute to open-source code, or gain freelance experience to build a strong foundation.

What Is the Career Outlook for Mobile App Developers?

The career outlook for mobile app developers is highly positive, as the demand for apps continues to grow across various industries like finance, healthcare, gaming, and e-commerce. Opportunities exist in startups, established tech companies, and freelance development.

What Are the Career Progression Options for Mobile App Developers?

Mobile app developers can progress to senior developer roles, become mobile architects, or transition into Full-Stack Development, Product Management, or Technical Lead positions. Specializing in a niche area like AR/VR, IoT, or security can also open up more advanced opportunities.

What Are the Exit Options and Opportunities Beyond Mobile App Development?

Skills gained in mobile app development—such as coding, problem-solving, and understanding user experiences—are transferable to other tech roles, including Software Development, Web Development, Game Development, or Software Engineering. Mobile app developers may also explore roles in UI/UX Design, Project Management, or start their own development business.