# PDF Reader vs 建标知网

The clearest difference is iOS requirement: PDF Reader at 12.0 against 建标知网's 14.0. On price, review sentiment, update cadence and ads there is nothing between them.

Both are free to download. PDF Reader sells 5 one-off in-app purchases and 建标知网 sells 10 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, 建标知网 monthly. The most recent releases landed on September 25, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | PDF Reader | 建标知网 |
| --- | --- | --- |
| 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** | 66.7% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Monthly |
| Monetization | Free with in-app purchases | — |
| Size | 50 MB | 58 MB |
| Requires iOS | **12.0** | 14.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [绪强 任](https://appshunter.io/developer/898564038) | [中国建筑工业出版社](https://appshunter.io/developer/615984710) |

## 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 |


### 建标知网

[App page](https://appshunter.io/ios/app/id1335906716)

**Features:** macOS Compatibility

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 普通会员(1个月) | $2.99 | one-time |
| 普通会员(3个月) | $6.99 | one-time |
| 普通会员(1年)-双11 | $14.99 | one-time |
| 普通会员(1年) | $19.99 | one-time |
| 旗舰会员(1个月) | $24.99 | one-time |
| 旗舰会员(3个月) | $69.99 | one-time |
| 1048金币 | $149.99 | one-time |
| 1598金币 | $229.99 | one-time |
| 旗舰会员(1年) | $249.99 | one-time |
| 旗舰会员(1年)-双11 | $299.99 | one-time |


## Frequently asked questions

### Is PDF Reader free?

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

### Is 建标知网 free?

建标知网 is free to download, with in-app purchases available.

### Do PDF Reader or 建标知网 have ads?

Neither PDF Reader nor 建标知网 shows ads.

### Which is updated more often, PDF Reader or 建标知网?

PDF Reader ships an update every 3 weeks, and 建标知网 monthly. Most recently, PDF Reader was updated on September 25, 2026 and 建标知网 on September 22, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*