# OFD阅读器 vs 宇环HRM

The clearest difference is in-app purchases: 宇环HRM at none against OFD阅读器's 3. 宇环HRM also leads on update cadence (every 5 days vs fortnightly). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. OFD阅读器 sells 3 in-app purchases, starting at $3.99 per month. 宇环HRM asks for nothing beyond the download.

OFD阅读器 ships an update fortnightly, 宇环HRM every 5 days. The most recent releases landed on September 9, 2026 and May 14, 2026 respectively.

## The numbers

| Metric | OFD阅读器 | 宇环HRM |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (8 ratings)](https://appshunter.io/ios/app/ofd/id6480045092/reviews)** | — |
| Number of ratings | **8** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 5 days** |
| Monetization | Freemium | — |
| Size | 28 MB | 84 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [鑫昕 马](https://appshunter.io/developer/1715187540) | [宇环数控机床股份有限公司](https://appshunter.io/developer/1686857019) |

## What reviewers say

### OFD阅读器

[App page](https://appshunter.io/ios/app/ofd/id6480045092)

This tool allows you to open and convert OFD and PDF documents. It supports converting OFD files to PDF, Word, or JPG images, as well as reading, printing, and sharing OFD documents.

**Highlights:** Open OFD and PDF documents, Convert OFD to PDF, Word, JPG, Read OFD files, Print OFD documents, Share OFD documents

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 月会员 | $3.99 | per month |
| 年会员 | $9.99 | per year |
| 永久会员 | $14.99 | one-time |


### 宇环HRM

[App page](https://appshunter.io/ios/app/hrm/id6743207026)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is OFD阅读器 free?

OFD阅读器 is free to download, with in-app purchases available.

### Is 宇环HRM free?

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

### Do OFD阅读器 or 宇环HRM have ads?

Neither OFD阅读器 nor 宇环HRM shows ads.

### Which is updated more often, OFD阅读器 or 宇环HRM?

OFD阅读器 ships an update fortnightly, and 宇环HRM every 5 days. Most recently, OFD阅读器 was updated on September 9, 2026 and 宇环HRM on May 14, 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.*