A personal knowledge organizer for Mac & iPhone, with Claude AI as your thinking partner. 🌲 Thought Trees — Break topics into sub-themes. Claude suggests branches, you shape the structure. 📡 Antenna — Claude monitors your topics and summarizes what's new. 💬 Tree Chat — Chat with Claude, grounded in your own knowledge tree. 🔒 No cloud. No lock-in. Your data stays on your device. Free with your Claude API key until June 30.