# CHMate vs 3DAR Edu App

The clearest difference is in-app purchases: 3DAR Edu App at none against CHMate's 1. 3DAR Edu App also leads on iOS requirement (15.0 vs 26.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. CHMate sells 1 one-off in-app purchase. 3DAR Edu App asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 2 weeks. The most recent releases landed on October 21, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | CHMate | 3DAR Edu App |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.9 (20 ratings)](https://appshunter.io/ios/app/chmate-epub-and-chm-reader/id335157929/reviews)** | — |
| Number of ratings | **20** | — |
| Positive reviews | 55.3% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 weeks | Every 2 weeks |
| Monetization | Free with in-app purchases | — |
| Size | 51 MB | 178 MB |
| Requires iOS | 26.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [贤安 陈](https://appshunter.io/developer/318015371) | [Edu Apps (Mal) Sdn. Bhd.](https://appshunter.io/developer/1490792227) |

## What reviewers say

### CHMate

[App page](https://appshunter.io/ios/app/chmate-epub-and-chm-reader/id335157929)

This app offers a robust reading experience for EPUB and CHM eBooks. Organize your library, add bookmarks and notes, and customize your reading environment. Share passages and easily search within your books.

**Highlights:** Organize eBooks into collections, Add bookmarks and notes, Customizable fonts and line height, Fast scrolling and pagination, Highlight favorite passages, Built-in search functionality, Share quotes with friends

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| CHMate+ | $9.99 | one-time |

**What reviewers like**

- 👍 Excellent UI/UX design and interface
- 📖 Best CHM file reader available
- ⚡ Fast and smooth performance
- 🎨 Customizable text formatting and fonts
- 🔍 Powerful search functionality

**What reviewers complain about**

- 🐛 Frequent crashes and stability issues
- ⚠️ iCloud sync deletes files irreversibly
- 💰 Expensive pricing for functionality
- 🔄 Highlighting and annotations don't persist
- 📱 Compatibility issues with iOS updates

**Reported bugs**

- App crashes when searching CHM files
- Crashes when using tap-hold for bookmarking
- Highlighting functionality broken after iOS updates
- Notes and bookmarks not saving properly
- Highlights disappear or move between chapters

**Requested features**

- Dark mode and additional color themes (Sepia)
- Book cover display instead of text-only library view
- PDF support
- Text-to-speech functionality
- Better pagination options


### 3DAR Edu App

[App page](https://appshunter.io/ios/app/3dar-edu-app/id1524740285)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is CHMate free?

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

### Is 3DAR Edu App free?

3DAR Edu App is free to download, with no in-app purchases.

### Do CHMate or 3DAR Edu App have ads?

Neither CHMate nor 3DAR Edu App shows ads.

### Which is updated more often, CHMate or 3DAR Edu App?

CHMate ships an update every 2 weeks, and 3DAR Edu App every 2 weeks. Most recently, CHMate was updated on October 21, 2026 and 3DAR Edu App on October 20, 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.*