# PDF Reader vs 实用德语教程

The clearest difference is update cadence: PDF Reader at every 3 weeks against 实用德语教程's every 18 months. 实用德语教程's advantage is iOS requirement (9.0 vs 12.0). 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 实用德语教程 sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

PDF Reader ships an update every 3 weeks, 实用德语教程 every 18 months. Both last shipped on November 13, 2026.

## The numbers

| Metric | PDF Reader | 实用德语教程 |
| --- | --- | --- |
| 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 18 months |
| Monetization | Free with in-app purchases | — |
| Size | 50 MB | 50 MB |
| Requires iOS | 12.0 | **9.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [绪强 任](https://appshunter.io/developer/898564038) | [世界图书出版广东有限公司](https://appshunter.io/developer/1245007348) |

## 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 |


### 实用德语教程

[App page](https://appshunter.io/ios/app/id1407177868)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 实用德语教程 | $3.99 | one-time |


## Frequently asked questions

### Is PDF Reader free?

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

### Is 实用德语教程 free?

实用德语教程 is free to download, with in-app purchases available.

### Do PDF Reader or 实用德语教程 have ads?

Neither PDF Reader nor 实用德语教程 shows ads.

### Which is updated more often, PDF Reader or 实用德语教程?

PDF Reader ships an update every 3 weeks, and 实用德语教程 every 18 months. Most recently, PDF Reader was updated on November 13, 2026 and 实用德语教程 on November 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.*