# PDF Reader vs 住院医师规培云平台

The clearest difference is update cadence: PDF Reader at every 3 weeks against 住院医师规培云平台's every 4 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. PDF Reader sells 5 one-off in-app purchases and 住院医师规培云平台 sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

PDF Reader ships an update every 3 weeks, 住院医师规培云平台 every 4 months. Both last shipped on October 8, 2026.

## The numbers

| Metric | PDF Reader | 住院医师规培云平台 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (8 ratings)](https://appshunter.io/ios/app/pdf-reader-mini-version/id898564035/reviews)** | — |
| Number of ratings | **8** | — |
| Positive reviews | 71.4% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 4 months |
| Monetization | Free with in-app purchases | — |
| Size | 50 MB | 52 MB |
| Requires iOS | 12.0 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [绪强 任](https://appshunter.io/developer/898564038) | [上海交通大学出版社有限公司](https://appshunter.io/developer/667356292) |

## What reviewers say

### PDF Reader

[App page](https://appshunter.io/ios/app/pdf-reader-mini-version/id898564035)

This app allows you to read various document formats like PDF, EPUB, and CHM on your iPhone and iPad. It supports file import, text search, annotation, and even previewing MS Office files and videos. A simple to-do list and auto-save reading progress are also included.

**Highlights:** Reads PDF, CHM, EPUB, TXT files, PDF annotation and text search, File import via Files, Airdrop, iTunes, web, MS Office and video file preview, Simple To-Do list functionality, Auto-save reading progress

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Reader App donate | $0.99 | one-time |
| Dropbox Support | $0.99 | one-time |
| Remove Ad | $4.99 | one-time |
| Todo donate | $7.99 | one-time |
| Todo donate | $14.99 | one-time |


### 住院医师规培云平台

[App page](https://appshunter.io/ios/app/id1473390950)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 40阅读币 | $5.99 | one-time |
| 78阅读币 | $9.99 | one-time |
| 128阅读币 | $19.99 | one-time |


## Frequently asked questions

### Is PDF Reader free?

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

### Is 住院医师规培云平台 free?

住院医师规培云平台 is free to download, with in-app purchases available.

### Do PDF Reader or 住院医师规培云平台 have ads?

Neither PDF Reader nor 住院医师规培云平台 shows ads.

### Which is updated more often, PDF Reader or 住院医师规培云平台?

PDF Reader ships an update every 3 weeks, and 住院医师规培云平台 every 4 months. Most recently, PDF Reader was updated on October 8, 2026 and 住院医师规培云平台 on October 8, 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.*