# OpenCat vs Notate

The clearest difference is price: OpenCat at Free against Notate's $0.99. On update cadence, ads, in-app purchases and device support there is nothing between them.

OpenCat is free to download; Notate costs $0.99 up front. OpenCat sells 4 in-app purchases, starting at $3.99 per month and Notate sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

OpenCat ships an update weekly, Notate every 2 weeks. The most recent releases landed on October 30, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | OpenCat | Notate |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | **[4.6 (851 ratings)](https://appshunter.io/ios/app/opencat-ai-chat-agent-mcp/id6445999201/reviews)** | — |
| Number of ratings | **851** | — |
| Positive reviews | 64.6% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Weekly** | Every 2 weeks |
| Monetization | Free with in-app purchases | — |
| Size | 96 MB | 295 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone, iPad, Mac | **iPhone, iPad, Mac, Apple Watch** |
| Age rating | 17+ | 4+ |
| Developer | [Early Moon, LLC](https://appshunter.io/developer/1119881923) | [Joshua Trommel](https://appshunter.io/developer/6779522177) |

## What reviewers say

### OpenCat

[App page](https://appshunter.io/ios/app/opencat-ai-chat-agent-mcp/id6445999201)

This AI utility tool offers seamless integration of advanced AI models into your daily routine on Mac, iPhone, and iPad. It features a user-friendly interface, keyboard extensions for in-app AI access, and Siri/shortcut integration for automation. Supports a wide range of popular AI models and offers team deployment options.

**Highlights:** Support for latest popular AI models, Keyboard extensions for in-app AI, Realistic voice synthesis, Siri and shortcut integration, Team deployment with Docker, Customizable AI parameters, Markdown content rendering

**Features:** Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Cloud AI | $3.99 | per month |
| Cloud AI | $24.99 | per year |
| Tokens Package | $5.99 | one-time |
| OpenCat Pro | $9.99 | one-time |

**What reviewers like**

- 🚀 Fast and responsive
- 👍 Convenient and user-friendly
- 💡 Customizable API integrations
- 🌐 Syncs across devices
- 🎨 Clean and visually appealing design

**What reviewers complain about**

- 🐛 Bugs and performance issues
- 🔒 Lack of custom API support
- 💻 Compatibility issues with older devices/OSes
- 🗂️ Difficulty managing conversations
- 📤 Inability to export chat data

**Reported bugs**

- Streaming response disruptions
- Disappearing API key input fields
- Inconsistent Markdown rendering
- Keyboard extension not working as expected
- Sync issues between devices

**Requested features**

- Support for more AI models (e.g., Ollama, Groq)
- Markdown rendering for chat responses
- Ability to upload images and files
- Customizable keyboard extensions
- Background task support for long-running queries


### Notate

[App page](https://appshunter.io/ios/app/notate/id6782604262)

**Features:** Apple Watch app, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Echo Pro | $1.00 | one-time |


## Frequently asked questions

### Is OpenCat free?

OpenCat is free to download, with in-app purchases available.

### Is Notate free?

Notate costs $0.99, and also offers in-app purchases.

### Do OpenCat or Notate have ads?

Neither OpenCat nor Notate shows ads.

### Which is updated more often, OpenCat or Notate?

OpenCat ships an update weekly, and Notate every 2 weeks. Most recently, OpenCat was updated on October 30, 2026 and Notate on October 28, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*