# 爱问云 vs PDF在线版

The clearest difference is rating: 爱问云 at 4.3 against PDF在线版's 3.5. 爱问云 also leads on ratings volume (20 vs 2) and update cadence (every 11 days vs monthly). PDF在线版's advantage is in-app purchases (none vs 10) and iOS requirement (11.0 vs 13.0). On price, ads and device support there is nothing between them.

Both are free to download. 爱问云 sells 10 one-off in-app purchases. PDF在线版 asks for nothing beyond the download.

爱问云 holds the better App Store score, 4.3 against 3.5. That said, the two scores are not equally well evidenced: 爱问云 has 20 ratings behind it against 2, so its average is the more settled of the two.

爱问云 ships an update every 11 days, PDF在线版 monthly. The most recent releases landed on October 24, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | 爱问云 | PDF在线版 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (20 ratings)](https://appshunter.io/ios/app/id1473900715/reviews)** | [3.5 (2 ratings)](https://appshunter.io/ios/app/pdf/id1622254371/reviews) |
| Number of ratings | **20** | 2 |
| Positive reviews | 33.3% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 11 days** | Monthly |
| Monetization | Free with in-app purchases | **Free** |
| Size | 338 MB | 25 MB |
| Requires iOS | 13.0 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Yixing Aiwen Technology Co., Ltd.](https://appshunter.io/developer/1620811918) | [Tianjin Jinruan Tianxia Technology Co., Ltd.](https://appshunter.io/developer/1619559631) |

## What reviewers say

### 爱问云

[App page](https://appshunter.io/ios/app/id1473900715)

This tool enhances communication and expression in complex information scenarios. It offers features like audio-video interaction for remote collaboration and a course function for creating and sharing video content. It also provides data reports for user self-management.

**Highlights:** Audio-video interaction for remote collaboration, Course creation with recording and sharing, Data reports for self-management, Efficient communication in complex scenarios, Supports various use cases like work, medical, design, and academic

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 12 TB | $1.99 | one-time |
| 25 TB | $3.99 | one-time |
| 30 TB | $3.99 | one-time |
| 40 TB | $5.99 | one-time |
| 45 TB | $5.99 | one-time |
| 50 TB | $6.99 | one-time |
| 60 TB | $8.99 | one-time |
| 68 TB | $9.99 | one-time |
| 88 TB | $12.99 | one-time |
| 108 TB | $14.99 | one-time |


### 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


## Frequently asked questions

### Is 爱问云 free?

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

### Is PDF在线版 free?

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

### Which has better reviews, 爱问云 or PDF在线版?

爱问云 is rated higher. 爱问云 averages 4.3 out of 5 from 20 ratings, while PDF在线版 averages 3.5 from 2 ratings.

### Do 爱问云 or PDF在线版 have ads?

Neither 爱问云 nor PDF在线版 shows ads.

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

爱问云 ships an update every 11 days, and PDF在线版 monthly. Most recently, 爱问云 was updated on October 24, 2026 and PDF在线版 on October 13, 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.*