Kuku is an AI-native Markdown editor specifically designed for macOS. It combines the powerful features of Obsidian with AI capabilities, without relying on cloud services like Notion, offering a native macOS experience. It uses Tauri 2 Rust backend, React 19 UI framework, and Tiptap Editor core, with technologies such as SQLite FTS5 search, Gemini AI engine, and Whisper local voice-to-text. The product background is to provide users with an efficient and locked-free writing environment. Pricing details are not mentioned in the documentation, and it is positioned to meet the needs of macOS users for smart writing tools.