Build a ChatGPT iOS App with SwiftUI and OpenAI API

4.2 ★★★★ ★

Build a ChatGPT iOS App with SwiftUI and OpenAI API

Name: Create a ChatGPT iOS App with SwiftUI &amp; OpenAI - Online Course
Rating: 4.2 (303 reviews)
Author: Jeevan Eashwar

Learn to integrate OpenAI GPT into a SwiftUI-powered iOS chat app with real-time messaging and persistent storage.

updated on icon Updated on Nov, 2025

language icon Language - English

person icon Jeevan Eashwar

category icon Development ,Mobile Development,IOS Development

Lectures -22

Resources -1

Duration -50 mins

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4.2 ★★★★ ★

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Course Description

Create your own AI-powered iOS application using OpenAI’s API and SwiftUI! In this course, you'll learn how to build a fully-functioning ChatGPT-style application with a beautiful user interface, real-time messaging, and saved chats. We will walk you through all of it—connecting to the OpenAI API, handling user input and sending that input to OpenAI's API, rendering GPT responses from OpenAI, and saving all conversations using UserDefaults.
By the end of the course you will have the skills to build, style, and deploy modern iOS apps that utilize generative AI—great for your own use or to showcase in a portfolio. This course is for you if you are a Swift beginner looking to translate your knowledge into an iOS app or if you're an iOS developer interested in learning how to work with AI APIs. The course provides real-world, practical skills.

Goals

- Build a fully-functional iOS chat application with SwiftUI
- Connect your app to the OpenAI ChatGPT API using URLSession
- Send the users messages and show ChatGPT's responses (if provided)
- Make the user / bot message UI components how you see fit
- Implement loading states while typing is underway
- Store/load the chat history using UserDefaults
- Utilize SwiftUI components like LazyVStack ScrollView, @Published, and ObservableObject
- Debugging the chat application while continuing to iterate on message flows and state management
- Simulate when it's being used for actual scenarios to gauge the experience
- Send the users messages and show GPT's contextually provided response if available
- Make the user / bot message UI components how you see fit.

Prerequisites

Basic understanding of Swift and SwiftUI
Xcode installed (Version 14 or later recommended)
OpenAI API key (free tier is sufficient)
Internet connection for API access
macOS system for iOS app development
Motivation to build and learn by doing

Build a ChatGPT iOS App with SwiftUI and OpenAI API

Curriculum

Check out the detailed breakdown of what’s inside the course

Introduction

1 Lectures

Introduction to SwiftUI 02:23 02:23

Project Setup

4 Lectures

Building the Model

1 Lectures

Creating the ViewModel

1 Lectures

OpenAI - ChatGPT Key

1 Lectures

Sending Messages and API Request

3 Lectures

The UI (The View)

4 Lectures

Wrapping Up

1 Lectures

Bonus

6 Lectures

Instructor Details

Jeevan Eashwar

Jeevan Eashwar is a dedicated instructor known for turning complex topics into clear, practical lessons. With a focus on real-world application, he helps learners build strong skills and gain confidence through structured, easy-to-follow teaching.

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Build a ChatGPT iOS App with SwiftUI and OpenAI API

Build a ChatGPT iOS App with SwiftUI and OpenAI API