MacGPT is a macOS app that allows users to access chatGPT right from their menu bar. It offers several features and advantages including:

• Global feature: Easily access chatGPT from anywhere on your Mac by activating the Global textfield.
• Inline feature: Type your trigger phrase and prompt to bring chatGPT directly into your textfields.
• Menubar feature: Quickly access chatGPT from your menu bar, either through the website or natively using the API.
• Conversation mode: Interact with chatGPT without needing to use your keyboard.
• Easy to use: Simply log in with your OpenAI credentials and start chatting. You can even assign a keyboard shortcut to activate MacGPT without using your mouse.

MacGPT has various use cases, including:

• Conveniently accessing chatGPT for personal or research purposes.
• Efficiently communicating with chatGPT through different features and modes.
• Using your own OpenAI API key to directly communicate with chatGPT.

MacGPT can be downloaded for free, or users can opt to pay and support the developer. Additionally, there is also a ChatGPT app available for iOS that can be used with your own OpenAI API key.