# CHM Sharp vs Chatbox

The clearest difference is rating: Chatbox at 4.6 against CHM Sharp's 3.8. Chatbox also leads on in-app purchases (none vs 1) and ads (none vs shown). CHM Sharp's advantage is iOS requirement (14.0 vs 16.0). On price and device support there is nothing between them.

Both are free to download. CHM Sharp sells 1 one-off in-app purchase. Chatbox asks for nothing beyond the download.

Chatbox holds the better App Store score, 4.6 against 3.8. That said, the two scores are not equally well evidenced: Chatbox has 632 ratings behind it against 11, so its average is the more settled of the two. Written reviews point the same way: 67% of CHM Sharp's written reviews are positive against 78% of Chatbox's.

CHM Sharp ships an update every 4 months, Chatbox weekly. The most recent releases landed on October 17, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | CHM Sharp | Chatbox |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.8 (11 ratings)](https://appshunter.io/ios/app/chm-sharp/id467098001/reviews) | **[4.6 (632 ratings)](https://appshunter.io/ios/app/chatbox-powerful-ai-client/id6471368056/reviews)** |
| Number of ratings | 11 | **632** |
| Positive reviews | 67.3% of reviews | **77.8% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 4 months | **Weekly** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 25 MB | 48 MB |
| Requires iOS | **14.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [锦文 游](https://appshunter.io/developer/406832160) | [Mediocre Apps](https://appshunter.io/developer/1772881024) |

## What reviewers say

### CHM Sharp

[App page](https://appshunter.io/ios/app/chm-sharp/id467098001)

This app is a reader for CHM (Microsoft Compiled HTML Help) documents on iOS devices. It allows for file management, searching within documents, and various viewing options. Transfer files easily via Wi-Fi or iTunes.

**Highlights:** CHM document reader, File sorting and searching, File management (copy, move, delete), Wi-Fi and iTunes file transfer, In-document search and highlighting, Pinch-to-zoom support, Bookmark functionality

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Version | $0.99 | one-time |


### Chatbox

[App page](https://appshunter.io/ios/app/chatbox-powerful-ai-client/id6471368056)

This application acts as a universal client, connecting you to leading AI models across various devices. It offers features like code assistance, image generation, and smart file understanding, all while prioritizing local data storage for privacy.

**Highlights:** Connect to multiple AI models, Analyze documents, images, and code, AI-powered code generation and optimization, Text-to-image generation, Local data storage for privacy, Cross-device synchronization

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 👍 Good customization options
- 🚀 Works well with local LLMs
- 💡 Supports multiple API formats
- 🔒 Privacy-focused (account-free)

**What reviewers complain about**

- 🐛 Local network access issues on iOS
- 🐛 Compatibility problems with older iOS versions
- 🐛 Streaming response issues
- 🐛 UI/UX not optimized for mobile

**Reported bugs**

- Cannot select Ollama models
- Custom API URL connections failing
- Live scrolling issues during streaming
- Proxy settings not working on mobile

**Requested features**

- Add support for local Ollama models
- Improve organization features (folders, projects, etc.)
- Implement iCloud syncing
- Add Chinese language support


## Frequently asked questions

### Is CHM Sharp free?

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

### Is Chatbox free?

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

### Which has better reviews, CHM Sharp or Chatbox?

Chatbox is rated higher. CHM Sharp averages 3.8 out of 5 from 11 ratings, while Chatbox averages 4.6 from 632 ratings.

### Do CHM Sharp or Chatbox have ads?

CHM Sharp shows ads; Chatbox does not.

### Which is updated more often, CHM Sharp or Chatbox?

CHM Sharp ships an update every 4 months, and Chatbox weekly. Most recently, CHM Sharp was updated on October 17, 2026 and Chatbox on October 18, 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.*