# CHM Sharp vs CHM Reader

The clearest difference is ads: CHM Reader at none against CHM Sharp's shown. CHM Reader also leads on update cadence (weekly vs every 4 months). CHM Sharp's advantage is iOS requirement (14.0 vs 17.0). On price, in-app purchases and device support there is nothing between them.

Both are free to download. CHM Sharp sells 1 one-off in-app purchase and CHM Reader sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

CHM Sharp ships an update every 4 months, CHM Reader weekly. The most recent releases landed on September 9, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | CHM Sharp | CHM Reader |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.8 (11 ratings)](https://appshunter.io/ios/app/chm-sharp/id467098001/reviews)** | — |
| Number of ratings | **11** | — |
| Positive reviews | 68.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 4 months | **Weekly** |
| Monetization | Free with in-app purchases | — |
| Size | 25 MB | 6 MB |
| Requires iOS | **14.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 9+ |
| Developer | [锦文 游](https://appshunter.io/developer/406832160) | [文利 罗](https://appshunter.io/developer/1743701483) |

## 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 |


### CHM Reader

[App page](https://appshunter.io/ios/app/chm-reader-offline-and-pdf/id6502591888)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| chm阅读器会员 | $1.99 | one-time |
| chm阅读器永久会员 | $1.99 | one-time |


## Frequently asked questions

### Is CHM Sharp free?

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

### Is CHM Reader free?

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

### Do CHM Sharp or CHM Reader have ads?

CHM Sharp shows ads; CHM Reader does not.

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

CHM Sharp ships an update every 4 months, and CHM Reader weekly. Most recently, CHM Sharp was updated on September 9, 2026 and CHM Reader on September 14, 2026.

---

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