Twin

Twin is a privacy-focused, local-first AI assistant designed for Mac users who seek a personal, on-device productivity companion. It lives unobtrusively on your desktop, offering features like catching up on texts, managing your calendar, and engaging in voice conversations—all without relying on cloud services. Its open-source nature and integration with your own AI keys (such as Claude, GPT, Gemini, or Grok) make it highly customizable and secure, as all data is stored locally in a DuckDB file. This approach ensures user privacy and control over sensitive information while providing a seamless, AI-powered experience. Ideal for those who prioritize data security but still want the benefits of intelligent automation and personal assistance, Twin offers a lightweight yet powerful alternative to traditional cloud-based AI tools.