# 古诗词笔记本 vs PDF转换器

The clearest difference is update cadence: PDF转换器 at monthly against 古诗词笔记本's every 39 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

古诗词笔记本 ships an update every 39 months, PDF转换器 monthly. The most recent releases landed on October 24, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | 古诗词笔记本 | PDF转换器 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/id1535019603/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 39 months | **Monthly** |
| Size | 121 MB | 36 MB |
| Requires iOS | 12.0 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [猜成都](https://appshunter.io/developer/908660241) | [Guangzhou Senlang Trading Co., Ltd.](https://appshunter.io/developer/1630883147) |

## What reviewers say

### 古诗词笔记本

[App page](https://appshunter.io/ios/app/id1535019603)

**Features:** macOS Compatibility

**In-app purchases:** none


### PDF转换器

[App page](https://appshunter.io/ios/app/pdf-pdf/id1630883145)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 古诗词笔记本 free?

古诗词笔记本 is free to download, with no in-app purchases.

### Is PDF转换器 free?

PDF转换器 is free to download, with no in-app purchases.

### Do 古诗词笔记本 or PDF转换器 have ads?

Neither 古诗词笔记本 nor PDF转换器 shows ads.

### Which is updated more often, 古诗词笔记本 or PDF转换器?

古诗词笔记本 ships an update every 39 months, and PDF转换器 monthly. Most recently, 古诗词笔记本 was updated on October 24, 2026 and PDF转换器 on October 27, 2026.

---

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