# 宏灿RAP vs OpenCat

The clearest difference is in-app purchases: 宏灿RAP at none against OpenCat's 4. 宏灿RAP also leads on iOS requirement (12.0 vs 17.0). OpenCat's advantage is update cadence (weekly vs every 5 weeks). On price, ads and device support there is nothing between them.

Both are free to download. OpenCat sells 4 in-app purchases, starting at $3.99 per month. 宏灿RAP asks for nothing beyond the download.

宏灿RAP ships an update every 5 weeks, OpenCat weekly. The most recent releases landed on October 4, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | 宏灿RAP | OpenCat |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.6 (847 ratings)](https://appshunter.io/ios/app/opencat-ai-chat-agent-mcp/id6445999201/reviews)** |
| Number of ratings | — | **847** |
| Positive reviews | — | 64.6% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Weekly** |
| Monetization | — | Free with in-app purchases |
| Size | 55 MB | 96 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | iPhone, iPod | **iPhone, iPad, Mac** |
| Age rating | 4+ | 17+ |
| Developer | [上海宏灿信息科技股份有限公司](https://appshunter.io/developer/1142911574) | [Early Moon, LLC](https://appshunter.io/developer/1119881923) |

## What reviewers say

### 宏灿RAP

[App page](https://appshunter.io/ios/app/rap/id1142911575)

**Features:** macOS Compatibility

**In-app purchases:** none


### 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


## Frequently asked questions

### Is 宏灿RAP free?

宏灿RAP is free to download, with no in-app purchases.

### Is OpenCat free?

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

### Do 宏灿RAP or OpenCat have ads?

Neither 宏灿RAP nor OpenCat shows ads.

### Which is updated more often, 宏灿RAP or OpenCat?

宏灿RAP ships an update every 5 weeks, and OpenCat weekly. Most recently, 宏灿RAP was updated on October 4, 2026 and OpenCat on October 21, 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.*