# QQ邮箱HD vs CAJ云阅读

The clearest difference is rating: CAJ云阅读 at 4.2 against QQ邮箱HD's 3.3. CAJ云阅读 also leads on update cadence (every 6 days vs every 3 months) and device support (3 vs 1). QQ邮箱HD's advantage is in-app purchases (none vs 6) and review sentiment (38% vs 18%). On price, ratings volume, ads and iOS requirement there is nothing between them.

Both are free to download. CAJ云阅读 sells 6 in-app purchases, starting at $3.99 per month. QQ邮箱HD asks for nothing beyond the download.

CAJ云阅读 holds the better App Store score, 4.2 against 3.3. Both are backed by a comparable volume of ratings — 48 and 32 respectively. Written reviews complicate that: 38% of QQ邮箱HD's written reviews are positive against 18% of CAJ云阅读's, so the app with the better star average is not the one people write more warmly about.

QQ邮箱HD ships an update every 3 months, CAJ云阅读 every 6 days. Both last shipped on October 17, 2026.

## The numbers

| Metric | QQ邮箱HD | CAJ云阅读 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.3 (48 ratings)](https://appshunter.io/ios/app/qqhd/id880859615/reviews) | **[4.2 (32 ratings)](https://appshunter.io/ios/app/caj-cajviewer/id1641509083/reviews)** |
| Number of ratings | **48** | 32 |
| Positive reviews | **38.3% of reviews** | 18.2% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 6 days** |
| Monetization | **Free** | Subscription |
| Size | 213 MB | 41 MB |
| Requires iOS | 12.0 | **11.0** |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Tencent Technology (Shenzhen) Company Limited](https://appshunter.io/developer/292374531) | [小花 胡](https://appshunter.io/developer/1641268208) |

## What reviewers say

### QQ邮箱HD

[App page](https://appshunter.io/ios/app/qqhd/id880859615)

Manage all your email accounts in one place with support for various protocols. Features include intelligent ad mail aggregation, quick screenshot annotations, and mail translation. Organize contacts, schedule events with a calendar, and store large files with ease.

**Highlights:** Manage multiple email accounts, Intelligent ad mail aggregation, Screenshot annotation, Mail translation, Calendar integration, File transfer station, Contact management

**In-app purchases:** none

**What reviewers like**

- 👍 Easy to use
- 👍 Can take large files
- 👍 Good for Chinese users receiving Gmail
- 👍 Simple design without ads
- 👍 Great email app

**What reviewers complain about**

- 👎 HD version not updated
- 👎 iPhone version not full-screen adapted for iPad
- 👎 Too many ads
- 👎 Login issues
- 👎 App freezes

**Reported bugs**

- HD version not updated
- iPhone version not full-screen adapted for iPad
- Login issues
- App freezes
- Search function crashes

**Requested features**

- Optimize HD version
- Full-screen adaptation for iPad
- Allow login with email address
- More services for associated QQ emails (spam marking, reporting, whitelist)
- English language option


### CAJ云阅读

[App page](https://appshunter.io/ios/app/caj-cajviewer/id1641509083)

This app allows users to read CAJ format documents and convert them to PDF and Word. It also supports various PDF conversion options, including to Word, Excel, PPT, and PNG, along with encryption and decryption.

**Highlights:** CAJ to PDF and Word conversion, PDF to Word, Excel, PPT, PNG conversion, PDF encryption and decryption, Import and read files, Extract text from documents, Share files easily

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 月会员 | $3.99 | per month |
| 月订阅 | $3.99 | per month |
| 年订阅 | $9.99 | per year |
| 年会员 | $17.99 | per year |
| 单次购买 | $0.99 | one-time |
| 永久会员 | $14.99 | one-time |


## Frequently asked questions

### Is QQ邮箱HD free?

QQ邮箱HD is free to download, with no in-app purchases.

### Is CAJ云阅读 free?

CAJ云阅读 is free to download, with in-app purchases available.

### Which has better reviews, QQ邮箱HD or CAJ云阅读?

CAJ云阅读 is rated higher. QQ邮箱HD averages 3.3 out of 5 from 48 ratings, while CAJ云阅读 averages 4.2 from 32 ratings.

### Do QQ邮箱HD or CAJ云阅读 have ads?

Neither QQ邮箱HD nor CAJ云阅读 shows ads.

### Which is updated more often, QQ邮箱HD or CAJ云阅读?

QQ邮箱HD ships an update every 3 months, and CAJ云阅读 every 6 days. Most recently, QQ邮箱HD was updated on October 17, 2026 and CAJ云阅读 on October 17, 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.*