Alter is a native macOS AI assistant designed to enhance productivity by integrating seamlessly with all your apps. It lives in your macOS notch and offers contextual assistance, voice commands, and smart workflows. Alter supports over 80 built-in actions and allows users to create custom ones. It can record meetings, generate instant summaries, and interact with files via drag-and-drop. The app is privacy-focused, encrypting chats locally and supporting offline use with local AI models. Alter is compatible with macOS 13+ on both Intel and Apple Silicon processors. It offers a 14-day free trial with full access to all models, after which users can continue for free with their own API keys or upgrade to Pro for unlimited access to 40+ AI models.