# OpenCat

According to OpenAITools.app telemetry verified on 2026-11-11, OpenCat (opencat.app) is an AI platform indexed under AI Chatbot generating 5.08K monthly visits with a month-over-month traffic delta of -455 (-8.2%). Its primary geographic market is United States (74.2% traffic share), and it operates on a Freemium, Free Trial pricing model. Top competing alternatives by monthly volume include Monica (4.51M visits/mo), MacGPT (26.22K visits/mo), Chatbox (567.17K visits/mo).

A native, fast AI chat client for Mac, iPad, and iPhone

## Key Telemetry & Specifications

| Metric | Value |
| :--- | :--- |
| Tool Name | OpenCat |
| Handle | opencat |
| Status | active |
| Origin | independent |
| Maintenance | active |
| Official Domain | opencat.app |
| Website URL | https://opencat.app |
| Categories | AI Chatbot, AI Assistant, Text to Image, AI Translate, AI Voice Assistants |
| Pricing Model | Freemium, Free Trial |
| Monthly Visits | 5,083 |
| MoM Traffic Change | -455 |
| MoM Growth Rate | -8.2% |
| Primary Market | United States |
| Market Share | 74.2% |
| Direct Visits | 2,034 |
| Organic Search Visits | — |
| Social Visits | — |
| Referral Visits | 516 |
| Email Visits | 164 |
| Review Score | 4.6 |
| Saved Count | 5 |
| Supported Platforms | Website |
| Billing Platforms |  |
| Attributes | Features: Website; Pricing: Freemium; Pricing: Free Trial |
| Tags | AI chat, Native app, Mac, iOS, iPad, Voice chat, Text to image, Image chat, Translation, Siri integration, Markdown rendering, Prompt library, Multiple models |

## Overview

OpenCat is a native AI client for Apple platforms, designed so that chatting with an AI assistant feels as smooth as using any well-made Mac or iOS app. Instead of relying on a web interface, it ships as a downloadable application for macOS and a mobile app for iPhone and iPad, with fast, responsive scrolling, native text selection, and system-level integrations that a browser tab simply cannot offer.

Its feature set reaches well beyond a plain chat window. OpenCat supports multiple AI models, so you can route different tasks to different assistants, and includes a prompt library to save the prompts you use repeatedly. Voice chat lets you hold a spoken conversation and hear replies, while Siri Shortcuts let you jump into a chat without opening the app. The keyboard extension is the standout: it puts AI completion and question answering directly into Messages, Notes, Mail, and other apps. On top of that, OpenCat handles text-to-image generation, image-based conversations, translation, and Markdown rendering with bold, italics, links, and code blocks.

Pricing is structured to meet different needs. The free tier covers the essentials — prompt library, Markdown rendering, and access to multiple models — while the one-time OpenCat Pro purchase unlocks the keyboard extension, iCloud sync, Siri integration, and text to speech. A separate Cloud AI subscription provides fast access to multiple hosted models, including voice chat, vision chat, and text to image, for people who would rather not manage their own API keys. The app is built by an independent developer and is not affiliated with OpenAI, Anthropic, or any other model vendor it can connect to.

## Pricing & Plans

OpenCat uses a freemium model: a free tier plus a one-time OpenCat Pro purchase (about $9.99) and an optional Cloud AI subscription (about $2.99 monthly or $19.99 annually), with a 3-day free trial on cloud plans.

## Key Features & Capabilities

- **AI in every app via keyboard extension:** The keyboard extension brings AI text generation into Messages, Notes, Mail, and any other app on your device, so you never have to switch contexts to ask a question.
- **Voice chat and Siri integration:** Talk to your assistant hands-free and hear spoken replies, with Siri Shortcuts for triggering a chat without opening the app.
- **Multiple models and prompt library:** Switch between different AI models and providers for different tasks, and keep a curated prompt library ready for recurring needs.
- **Image generation, vision chat, and translation:** Generate images from text prompts, discuss photos inside a conversation, and translate text between languages without leaving the chat.
- **Markdown rendering and iCloud sync:** Format answers with bold, italics, links, and code, and sync conversations and settings through iCloud across your Apple devices.

## Primary Use Cases

- **Hands-free voice conversations (Commuters and multitaskers):** Talk with your assistant by voice and hear replies read aloud, useful while commuting, cooking, or working with your hands.
- **AI writing help inside any app (Writers and knowledge workers):** Use the keyboard extension to draft replies, summarize text, or fix wording in Messages, Notes, or Mail while the AI stays one gesture away.
- **Generate images and discuss visuals (Creators and designers):** Generate illustrations from prompts and discuss images inside a chat, keeping everything organized in one conversation history.
- **Quick translation on the go (Multilingual users):** Translate messages on the fly and keep terminology consistent with saved prompts across languages.

## Strengths

- Native macOS and iOS apps with fluid, responsive performance
- Keyboard extension lets you use AI in any app without switching windows
- Choice of built-in cloud models or bringing your own API key
- One-time Pro purchase option instead of a mandatory subscription

## Limitations

- Some of the best features, like the keyboard extension and Siri integration, require the Pro purchase
- Heavy cloud usage depends on a separate subscription or your own API keys and provider limits
- Closest competitors offer broader team and enterprise administration features

## Frequently Asked Questions

### Which devices does OpenCat support?
OpenCat is available for macOS and iOS, including iPad. You can download the iOS version from the App Store and the macOS version from the developer's website, and iCloud sync keeps conversations and settings consistent across devices.

### Do I need my own API key?
No. You can subscribe to the built-in Cloud AI service with fast access to multiple models, or bring your own key from a supported AI provider if you prefer to pay the model vendor directly.

### Is there a free version?
Yes. OpenCat Free covers the prompt library, Markdown rendering, and access to multiple models. Pro adds the keyboard extension, iCloud sync, Siri integration, and text to speech as a one-time purchase.

### Can OpenCat read images and translate text?
Yes, on plans that include vision and generation. OpenCat offers image chat for discussing pictures, text-to-image generation, and translation between languages.

### What is OpenCat's monthly traffic and growth trend?
OpenCat currently receives 5.08K monthly visits, with a month-over-month traffic change of -455 (-8.2% growth rate). Its primary source market is United States (74.2% share), including 2.03K direct visits/mo and — organic search visits/mo.

### Is OpenCat free? What is its pricing model?
OpenCat operates on a Freemium, Free Trial pricing model. OpenCat uses a freemium model: a free tier plus a one-time OpenCat Pro purchase (about $9.99) and an optional Cloud AI subscription (about $2.99 monthly or $19.99 annually), with a 3-day free trial on cloud plans. Supported billing and checkout platforms include: not listed.

### What are the best OpenCat alternatives in 2026?
Based on OpenAITools.app category traffic and feature fit, the top five alternatives to OpenCat are: 1. Monica (4.51M visits/mo); 2. MacGPT (26.22K visits/mo); 3. Chatbox (567.17K visits/mo); 4. Merlin AI (1.38M visits/mo); 5. Sider (2.64M visits/mo).

### Which platforms and core AI capabilities does OpenCat support?
OpenCat is classified under AI Chatbot, AI Assistant, Text to Image, AI Translate, supports the following platforms: Website, and its core capability tags include: AI chat, Native app, Mac, iOS, iPad, Voice chat.

## Alternatives

| Tool Name | Monthly Visits | Pricing Model | Compare |
| :--- | :--- | :--- | :--- |
| [Monica](https://openaitools.app/tool/monica-ai) | 4,512,775 | Freemium | [Compare](https://openaitools.app/compare/monica-ai-vs-opencat) |
| [MacGPT](https://openaitools.app/tool/macgpt) | 26,224 | Freemium | [Compare](https://openaitools.app/compare/macgpt-vs-opencat) |
| [Chatbox](https://openaitools.app/tool/chatbox) | 567,170 | Freemium | [Compare](https://openaitools.app/compare/chatbox-vs-opencat) |
| [Merlin AI](https://openaitools.app/tool/merlin-ai) | 1,382,634 | Freemium | [Compare](https://openaitools.app/compare/merlin-ai-vs-opencat) |
| [Sider](https://openaitools.app/tool/sider-ai-extension) | 2,644,740 | Freemium | [Compare](https://openaitools.app/compare/opencat-vs-sider-ai-extension) |
| [Poe](https://openaitools.app/tool/poe) | 5,894,702 | Freemium | [Compare](https://openaitools.app/compare/opencat-vs-poe) |
| [ChatHub](https://openaitools.app/tool/chathub) | 322,618 | Freemium | [Compare](https://openaitools.app/compare/chathub-vs-opencat) |
| [Typing Mind](https://openaitools.app/tool/typing-mind) | 533,103 | Paid | [Compare](https://openaitools.app/compare/opencat-vs-typing-mind) |
| [Lunabot](https://openaitools.app/tool/lunabot) | 18,851 | Freemium | [Compare](https://openaitools.app/compare/lunabot-vs-opencat) |
| [Overchat AI](https://openaitools.app/tool/overchat) | 948,033 | Freemium | [Compare](https://openaitools.app/compare/opencat-vs-overchat) |
| [Cherry Studio](https://openaitools.app/tool/cherry-studio) | 23,474 | Free | [Compare](https://openaitools.app/compare/cherry-studio-vs-opencat) |
| [ChatGPT](https://openaitools.app/tool/chatgpt-4) | 6,048,022,723 | Freemium | [Compare](https://openaitools.app/compare/chatgpt-4-vs-opencat) |

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Source: https://openaitools.app/tool/opencat