# CHM Sharp vs UNetState

The clearest difference is price: CHM Sharp at Free against UNetState's $3.99. UNetState's advantage is in-app purchases (none vs 1) and ads (none vs shown). On review sentiment, update cadence and device support there is nothing between them.

CHM Sharp is free to download; UNetState costs $3.99 up front. CHM Sharp sells 1 one-off in-app purchase. UNetState asks for nothing beyond the download.

CHM Sharp ships an update every 4 months, UNetState every 3 months. The most recent releases landed on October 13, 2026 and September 27, 2026 respectively.

## The numbers

| Metric | CHM Sharp | UNetState |
| --- | --- | --- |
| Price | **Free** | $3.99 |
| Rating | **[3.8 (11 ratings)](https://appshunter.io/ios/app/chm-sharp/id467098001/reviews)** | — |
| Number of ratings | **11** | — |
| Positive reviews | **68.0% of reviews** | 66.7% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 4 months | **Every 3 months** |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 25 MB | 5 MB |
| Requires iOS | 14.0 | **9.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [锦文 游](https://appshunter.io/developer/406832160) | [齐 张](https://appshunter.io/developer/1489312796) |

## 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 |


### UNetState

[App page](https://appshunter.io/ios/app/unetstate/id1489314289)

This utility app helps diagnose network issues with tools like Ping, Traceroute, and Port Scan. It provides detailed network information and scans for active devices on your local network. Ideal for students and professionals in networking fields.

**Highlights:** Ping and TCP Ping, UDP and ICMP Traceroute, NSLookup and DNS lookup, Port Scanning, LAN Active Device Scanning, Device Network Information

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

**In-app purchases:** none


## Frequently asked questions

### Is CHM Sharp free?

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

### Is UNetState free?

UNetState costs $3.99, with no in-app purchases.

### Do CHM Sharp or UNetState have ads?

CHM Sharp shows ads; UNetState does not.

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

CHM Sharp ships an update every 4 months, and UNetState every 3 months. Most recently, CHM Sharp was updated on October 13, 2026 and UNetState on September 27, 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.*