# OFD阅读器 vs 语鲸

OFD阅读器 and 语鲸 both sit at 4.8 stars, but that hides the real split: 80% of 语鲸's written reviews are positive against 0% of OFD阅读器's. 语鲸 also leads on monetization model (free vs freemium) and update cadence (every 6 days vs fortnightly). OFD阅读器's advantage is iOS requirement (12.0 vs 15.1). On price, rating, ads and in-app purchases 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 and 语鲸 sells 4 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.8 for OFD阅读器 against 4.8 for 语鲸. That said, the two scores are not equally well evidenced: 语鲸 has 50 ratings behind it against 8, so its average is the more settled of the two. Written reviews are what separate them: 0% of OFD阅读器's written reviews are positive against 80% of 语鲸's.

OFD阅读器 ships an update fortnightly, 语鲸 every 6 days. The most recent releases landed on September 9, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | OFD阅读器 | 语鲸 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (8 ratings)](https://appshunter.io/ios/app/ofd/id6480045092/reviews) | **[4.8 (50 ratings)](https://appshunter.io/ios/app/id6736673642/reviews)** |
| Number of ratings | 8 | **50** |
| Positive reviews | 0.0% of reviews | **80.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 6 days** |
| Monetization | Freemium | **Free** |
| Size | 28 MB | 66 MB |
| Requires iOS | **12.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [鑫昕 马](https://appshunter.io/developer/1715187540) | [北京深言科技有限责任公司](https://appshunter.io/developer/1773013181) |

## 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 |


### 语鲸

[App page](https://appshunter.io/ios/app/id6736673642)

This app acts as a personalized information manager, delivering timely content from subscribed sources. It uses AI to deconstruct and reassemble articles, web pages, and research papers into new formats for efficient reading and understanding. The app also automatically groups similar articles to provide a comprehensive view of events.

**Highlights:** Personalized information subscription, AI-powered content deconstruction and reassembly, Summarized and restructured content presentation, Automatic grouping of similar articles, Reduced reading pressure and time savings, Focus on key information and event overviews

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 语鲸 Plus 会员（月付） | $2.99 | per month |
| 语鲸 Pro 会员（月付） | $6.99 | per month |
| 语鲸 Plus 会员（年付） | $24.99 | per year |
| 语鲸 Pro 会员（年付） | $69.99 | per year |


## Frequently asked questions

### Is OFD阅读器 free?

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

### Is 语鲸 free?

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

### Which has better reviews, OFD阅读器 or 语鲸?

语鲸 is rated higher. OFD阅读器 averages 4.8 out of 5 from 8 ratings, while 语鲸 averages 4.8 from 50 ratings.

### Do OFD阅读器 or 语鲸 have ads?

Neither OFD阅读器 nor 语鲸 shows ads.

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

OFD阅读器 ships an update fortnightly, and 语鲸 every 6 days. Most recently, OFD阅读器 was updated on September 9, 2026 and 语鲸 on September 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.*