OpenCat

OpenCat provides a native macOS and iOS client for interacting with AI chat models, delivering a smoother and faster experience than browser‑based interfaces. Users can exchange text messages, voice input, and images with AI “cats,” and the app includes built‑in translation and text‑to‑image generation. It also supports markdown rendering and a prompt library to streamline conversation setup.

The client integrates with the operating system, allowing AI access from any app via keyboard shortcuts and Siri shortcuts, and it offers a team mode for shared chat sessions. Multiple AI models can be selected, enabling varied conversational personalities and capabilities.

Designed for everyday users who want a locally installed AI assistant, OpenCat emphasizes quick startup, hands‑free voice interaction, and visual communication features while remaining free with optional paid extensions.