Step 1
Swift basicsDedicated page
Start this stepStartVariables, types, conditions, loops, functions, strings, dictionaries, sets, closures and error handling.StartDedicated page2 sections, in order
Learning path
iOS App Development Roadmap
Learn Swift, build SwiftUI screens with a live preview, then practice the data structures and algorithms iOS interviews ask, all in Swift.
49,524+ codders enrolled across these courses
574 lessons583 challenges2,237 quiz questions
- Beginner friendly
AI-assisted coding help
Hands-on interactive lessons
Audio narration on every lesson
Quizzes to test your knowledge
14 free certificates along the path
The iOS roadmap, step by step
Each step is a Coddy course. Your progress is saved per course.
- 1
- 2Step 2
Classes and protocols
Start this stepStartClasses, structs, enums, protocols, inheritance and generics, with a library management project.Start - 3Step 3
SwiftUIDedicated page
Start this stepStartViews and modifiers, stacks, state and buttons, text fields, toggles, lists and navigation, previewed live.StartDedicated page - 4Step 4
Data structures in Swift
Start this stepStartStacks, queues, linked lists, binary trees and hash tables, built by hand.Start5 courses, in order- Stack - Data Structures Series #113 lessons11 challenges1 project
- Queue - Data Structures Series #212 lessons10 challenges1 project
- Linked List - Data Structures Series #514 lessons12 challenges1 project
- Binary Tree - Data Structures Series #313 lessons11 challenges1 project
- Hash Tables - Data Structures Series #414 lessons12 challenges
- 5Step 5
Algorithms in Swift
Start this stepStartRecursion, then bubble, selection, insertion, merge and quick sort.Start6 courses, in order- Recursion Challenges - Master The Recursive Thinking15 lessons15 challenges
- Bubble Sort11 lessons10 challenges
- Selection Sort - DSA Series9 lessons4 challenges54 questions1 project
- Insertion Sort - DSA Series9 lessons4 challenges1 project
- Merge Sort - DSA Series9 lessons4 challenges52 questions1 project
- Quick Sort - DSA Series9 lessons4 challenges52 questions1 project
- 6Step 6
Interview problems
Start this stepStartCoding problems of the kind iOS interviews ask, solved in Swift.Start2 courses, in order - 7Step 7
The terminal and GitDedicated page
Start this stepStartThe command line, then Git: commits, branches, merges and fixing mistakes.StartDedicated page2 sections, in order
What you get
Everything you'll use to learn to code
Learn by Doing
Write real code, query databases, build websites, and master AI prompts. Our interactive lessons cover every skill modern developers need.
playground.js
Code Editor
1const greeting = "Hello, Coddy!"
2function sayHi(name) {
3 return greeting + " " + name
4}
5
Test #1
Test #2
Test #3
Input
"Alex"
Output
"Hello, Coddy! Alex"
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12 days streak
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Double or Nothing
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Compete on global leaderboards, invite friends to earn rewards, and celebrate each other's wins. Coding is better with friends!
Challenger LeagueTop 7 advance
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Promotion zoneEvery way to learn
Read, listen, test yourself, ask the AI, or look up anything you've already covered. Every lesson meets you where you are.
Intro to Variables
Audio
A variable is a named container that stores a value you can reference later in your program.
In Python, you create one by writing the name, an equals sign, then the value you want to store.
The value can change over time. Reassigning the name simply points it to a new value.
1xSarah
Earn a Certificate
Earn certificates for every course you complete. Add them to your LinkedIn profile and resume to showcase your coding expertise to employers.
Certificate of CompletionThis certifies thatJohn Doehas successfully completed
Python Fundamentals
Python Fundamentals
DateJan 2026
Add to LinkedInWhy learn iOS development on Coddy
- Every SwiftUI lesson shows your screen in a live preview next to your code.
- No Mac needed to start: Swift and SwiftUI run in your browser.
- The data structures, algorithms and interview problems are all in Swift.
- When you get stuck, Bugsy points at the problem without writing the answer for you.
Questions about becoming an iOS developer
What do I need to learn to become an iOS developer?
Swift first, then SwiftUI for building screens, then the data structures and algorithms most interviews ask about, and Git. This path follows that order.
Do I need a Mac to learn iOS development?
Not to start. Every lesson runs in your browser. To build and publish a real app you need a Mac with Xcode.
Should I start with SwiftUI or UIKit?
Start with SwiftUI. It is Apple's newer way to build screens and the one new projects use most. Many older apps still use UIKit, which this path does not teach yet.
How long does it take to learn iOS development?
About four to six months at an hour a day for the whole path. Swift takes the first two months, SwiftUI about three weeks, and the rest is practice.
Can I build Android apps with Swift?
No. Swift and SwiftUI make apps for Apple devices. To build one app for iPhone and Android, take the Flutter path instead.
Is Coddy part of Apple?
No. Coddy is not affiliated with or endorsed by Apple. iOS, Swift and SwiftUI are trademarks of Apple Inc.
