This project demonstrates how to develop a cross-platform Apple app from scratch using SwiftUI, including network requests, database storage, and in-app purchases. The project was written in a relatively short amount of time, so if you have any questions or suggestions for improvement, please feel free to provide feedback.

• Xcode 14.3 (Not verified on other version)
• Create Credential.Swift

  // for App Crash Tracking
  let appCenterSecretKey = "{Your AppCenter App Secret}"
  // for in app purchase
  let appHudKey = "{Your AppHud App Key}"
  // open ai
  let openAIKey = "{Your OpenAI API Key}"
  let proxyAPIHost = "https://api.openai.com"
  let monthlyPremiumId = "monthly premium subscription product id"
  let catFoodId = "consumable in-app purchase product id"

  • AppCenter
  • AppHud

• Features of ChatGPT Web App
• Create Chat with prompt
• Command mode inspired by Telegram
• Custom request parameters for every conversation
• CRUD for Chat and Messages
• Use your own OpenAI API Key
• Custom API Host
• Share message as image
• Export messages as Markdown
• New session in Conversation when ContextMessages count more than 0
• iCloud Sync
• Copy code block

the command mode depends on chats with prompt, creating more prompts is important

• iOS, iPadOS 15 and later version
• macOS 13 and later version

• For people who have OpenAI account, you can input OpenAI API Key to access all features(called developer mode)
• For people who do not have OpenAI API key, subscribe monthly premium to access all features
• Long press version number text for more than 5s in bottom of Settings page to switch developer mode

• iOS

• MacOS

• Join TestFlight
• Join AICat News
• App Store