# PDF Reader vs 基础老挝语2

The clearest difference is update cadence: PDF Reader at every 3 weeks against 基础老挝语2's every 7 months. 基础老挝语2'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 基础老挝语2 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, 基础老挝语2 every 7 months. The most recent releases landed on September 25, 2026 and September 15, 2026 respectively.

## The numbers

| Metric | PDF Reader | 基础老挝语2 |
| --- | --- | --- |
| 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 7 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 |


### 基础老挝语2

[App page](https://appshunter.io/ios/app/2/id1462714805)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 基础老挝语2 | $3.99 | one-time |
| 基础老挝语1 | $3.99 | one-time |
| 老挝语听力教程 | $3.99 | one-time |


## Frequently asked questions

### Is PDF Reader free?

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

### Is 基础老挝语2 free?

基础老挝语2 is free to download, with in-app purchases available.

### Do PDF Reader or 基础老挝语2 have ads?

Neither PDF Reader nor 基础老挝语2 shows ads.

### Which is updated more often, PDF Reader or 基础老挝语2?

PDF Reader ships an update every 3 weeks, and 基础老挝语2 every 7 months. Most recently, PDF Reader was updated on September 25, 2026 and 基础老挝语2 on September 15, 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.*