# PDF在线版 vs ChatgpTop

The clearest difference is rating: ChatgpTop at 4.7 against PDF在线版's 3.5. ChatgpTop also leads on update cadence (every 11 days vs monthly) and ratings volume (10 vs 2). PDF在线版's advantage is in-app purchases (none vs 4) and iOS requirement (11.0 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. ChatgpTop sells 4 in-app purchases, starting at $3.99 per 7 days. PDF在线版 asks for nothing beyond the download.

ChatgpTop holds the better App Store score, 4.7 against 3.5. That said, the two scores are not equally well evidenced: ChatgpTop has 10 ratings behind it against 2, so its average is the more settled of the two.

PDF在线版 ships an update monthly, ChatgpTop every 11 days. The most recent releases landed on October 13, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | PDF在线版 | ChatgpTop |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.5 (2 ratings)](https://appshunter.io/ios/app/pdf/id1622254371/reviews) | **[4.7 (10 ratings)](https://appshunter.io/ios/app/chatgptop/id6449353054/reviews)** |
| Number of ratings | 2 | **10** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 11 days** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 25 MB | 4 MB |
| Requires iOS | **11.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [Tianjin Jinruan Tianxia Technology Co., Ltd.](https://appshunter.io/developer/1619559631) | [linshan Chen](https://appshunter.io/developer/1895340800) |

## What reviewers say

### PDF在线版

[App page](https://appshunter.io/ios/app/pdf/id1622254371)

This app serves as a reader for documents encrypted using an online solution. It requires a username and password to open protected files and automatically binds to the device used for the first reading. Administrators can manage user reading permissions.

**Highlights:** Online encryption reader, Username and password protection, Device binding, User permission control, Secure document access

**Features:** macOS Compatibility

**In-app purchases:** none


### ChatgpTop

[App page](https://appshunter.io/ios/app/chatgptop/id6449353054)

This AI-powered tool assists with creative writing, generating articles, poems, and social media content. It also helps with planning and summarizing tasks, offering solutions for work and life challenges.

**Highlights:** AI-powered content creation, Article and poem generation, Social media post writing, Study and work plan creation, Summarization of reports, Image editing and generation

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 周订阅 | $3.99 | per 7 days |
| 月订阅 | $12.99 | per month |
| 半年订阅 | $29.99 | per 6 months |
| 年订阅 | $39.99 | per year |


## Frequently asked questions

### Is PDF在线版 free?

PDF在线版 is free to download, with no in-app purchases.

### Is ChatgpTop free?

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

### Which has better reviews, PDF在线版 or ChatgpTop?

ChatgpTop is rated higher. PDF在线版 averages 3.5 out of 5 from 2 ratings, while ChatgpTop averages 4.7 from 10 ratings.

### Do PDF在线版 or ChatgpTop have ads?

Neither PDF在线版 nor ChatgpTop shows ads.

### Which is updated more often, PDF在线版 or ChatgpTop?

PDF在线版 ships an update monthly, and ChatgpTop every 11 days. Most recently, PDF在线版 was updated on October 13, 2026 and ChatgpTop on October 16, 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.*