Role

Mobile App Developer

Develops mobile apps for iOS and Android with smooth performance and usability.

13 chaptersAbout 5–6 months15–30 min a day14 skills2 projects
Start this path free →

Chapter 1 is free. No card needed.

Day 1 on the Mobile App Developer path.

What a Mobile App Developer does

Builds and improves iOS and Android apps so users can do tasks smoothly, safely, and fast on their phones.

  • Design app screens and user flows with clear navigation and accessibility
  • Build mobile features using platform tools and shared code when needed
  • Connect apps to APIs and databases to load and sync data
  • Test apps on real devices to find crashes, bugs, and slow screens
  • Review code and improve performance, battery use, and app size
  • Work with designers and product teammates to plan and estimate work
  • Set up app releases, versioning, and store submissions
  • Monitor analytics and user feedback to guide fixes and improvements

A day in the life

  1. Check messages, review tickets, and plan the next small set of tasks
  2. Implement a feature, run it on devices, and fix issues found in testing
  3. Join a short team sync to unblock work and confirm requirements
  4. Review a teammate code change and update your own based on feedback
  5. Prepare a build for release and verify it works across key devices

Tools you will use

Languages: Kotlin, Swift, Dart, JavaScriptFrameworks: Android SDK, iOS SDK, Flutter, React NativeVersion control: Git, GitHub, GitLabIDEs: Android Studio, Xcode, Visual Studio CodeTesting: XCTest, Espresso, AppiumCI and release: Fastlane, GitHub Actions, BitriseAnalytics and crash reports: Firebase Analytics, Crashlytics

Your plan

Chapter by chapter.

1~2 wks

See the work of a Mobile App Developer

StartFree
2~2 wks

Writing and Reviewing Code

Skills
3~2 wks

Writing and automating tests

Skills
4~2 wks

Architecture write-up: explain a system you built

Proof
5~2 wks

Mobile Frameworks and APIs

Skills
61–2 wks

Meet people doing the work

People
7~2 wks

Data and Delivery Pipelines

Skills
8~2 wks

Problem Solving and Adaptability

Skills
9~2 wks

Collaboration and Communication

Skills
10~2 wks

CRUD web app with login, tests, and a deployed URL

Proof
111–2 wks

Prepare for Mobile App Developer interviews

Interview
121–2 wks

Choose your route into Mobile App Developer work

Decide
13on your timeline

Apply for Mobile App Developer roles

Apply

By the last chapter

This is what you can show.

Things you've made

Architecture write-up: explain a system you built and CRUD web app with login, tests, and a deployed URL

Skills you can prove

14 skills, each rated on work you actually did.

People you've talked to

3 people who do the job, with a message ready for each.

Questions you can answer

20 interview questions and a mock interview, with feedback.

Credentials

9 credentials compared, so you can pick one, or decide you don't need one. None is required.

Ways in

There is more than one route.

Ways to study

  • Computer science or software engineering degree or diploma
  • Mobile development bootcamp or intensive short course
  • Self-taught path using online courses plus a strong app portfolio
  • Apprenticeship or vocational program focused on software development

How people get their first job

  • Build and publish 1 to 2 small apps with clean code and a README portfolio
  • Apply for mobile app internships or software development internships
  • Start in software engineer roles and take mobile-focused tasks
  • Contribute bug fixes to open source mobile apps or libraries
  • Earn a practical certificate in Android or iOS development and ship a project

Life skills on this path: Networking · Job interviews · Job search

How the work is changing

What AI is doing to this role

How AI is changing this role · one of 6 tasks we track

Build UI screens and navigation flows

Sped up a lot

What AI does

AI Studio, Cursor and Copilot generate Compose and SwiftUI screens fast.

Still yours

You decide what the flow feels like. Polish cannot be prompted.

Reviewed September 2026

In the app · Premium

The rest is in the app

  • How AI affects the other 5 tasks
  • Whether this job is growing or shrinking
  • How hard the first job is to get
  • Similar roles that are easier to get into
  • Updated every month, with sources
See it in the app →

How we rate a job →

Already working

Already a Mobile App Developer?

Plan your move to Senior Mobile Developer: 10 chapters that end with a strong case for your next review.

Grow in the role →

Other roles in Software Development

AI Coding Agent OperatorAI Platform EngineerAndroid DeveloperBack-End DeveloperEvals and AI Quality EngineerForward-deployed AI EngineerFront-End DeveloperFull Stack DeveloperGame DeveloperiOS DeveloperSoftware Engineer

Questions

Questions about this path

How long does it take to become a mobile app developer with Welica?

The path is 13 chapters, 5–6 months at 15 to 30 minutes a day. You can go faster or slower; the plan moves with you.

Do I need a degree?

Not always. Common routes are computer science or software engineering degree or diploma, mobile development bootcamp or intensive short course, self-taught path using online courses plus a strong app portfolio, or apprenticeship or vocational program focused on software development.

What is free?

Chapter 1, See the work of a Mobile App Developer, is free for good. Premium unlocks the rest of the path.

Start the Mobile App Developer path.

Chapter 1 free. About 15 to 30 minutes a day.

Start this path free →

Already have an account? Sign in

Also on iPhone and Android