OpenCat - AI Chat, Agent, MCP

About this app

<p>Bring AI into every part of your workflow: chat, writing, translation, and search.</p>
<p>· Multiple model options — local models, API Key, Cloud subscription, Apple Intelligence<br />
· MCP — supports MCP and tool calls<br />
· Web search — available on OpenCat Cloud and select providers<br />
· System-wide translation — select text in any app for instant AI translation<br />
· Content rendering — supports LaTeX formulas, Markdown, and code highlighting<br />
· Cross-platform — natively built for Mac, iPhone, and iPad<br />
· Data privacy — stored locally, synced across devices via iCloud</p>
<p>[Pro Features]<br />
· AI Keyboard — invoke AI right in the text field of any app to polish or reply in one step<br />
· OpenCat Cloud subscription provides access to all major models</p>
<p>[A Variety of Models]<br />
· OpenCat Cloud — fast access to leading models<br />
· Local models — one-tap download of open-source models for offline use, accelerated by Apple silicon<br />
· BYOK — use your own API Key, including Coding Plan<br />
· System models — supports Apple Foundation Models</p>
<p>[OpenCat Cloud — Ready to Use, No Setup]<br />
· No sign-up, zero configuration, all major models supported<br />
· 50+ models — ChatGPT, Claude, Gemini, Grok, DeepSeek, GLM, MiniMax, Kimi, Qwen, Doubao, and more, all in one place<br />
· Online search supported</p>
<p>[System-Level AI Translation]<br />
Set OpenCat as your default translation app to translate selected text directly in Safari, Mail, Notes, and any other app. Powered by large language models, translations are natural and fluent — far superior to traditional translation engines.</p>
<p>[Local Models, Offline Inference]<br />
· One-tap download — popular open-source models like Llama, Qwen, and Gemma<br />
· Apple silicon acceleration — built on Apple's official MLX framework, fully leveraging GPU performance for fast, energy-efficient inference<br />
· Fully offline — works without internet, conversation data never leaves your device</p>
<p>[Use Your Own API Key]<br />
· 25+ providers supported — OpenAI, Claude, Gemini, DeepSeek, Kimi, Qwen, Doubao, ERNIE, and more</p>
<p>[Contact Us]<br />
Email: [email protected]</p>
<p>Terms of Use<br />
https://www.apple.com/legal/internet-services/itunes/dev/stdeula/</p>
<p>Privacy Policy & Third-party AI Service Privacy Policy<br />
https://opencat.app/privacy</p>