# PDF转换器 vs Lesborn(试管婴儿)

The clearest difference is in-app purchases: Lesborn(试管婴儿) at none against PDF转换器's 3. Lesborn(试管婴儿) also leads on update cadence (every 5 days vs every 2 weeks). PDF转换器's advantage is iOS requirement (11.0 vs 13.0). On price, ads and device support there is nothing between them.

Both are free to download. PDF转换器 sells 3 in-app purchases, starting at $3.99 per 7 days. Lesborn(试管婴儿) asks for nothing beyond the download.

PDF转换器 ships an update every 2 weeks, Lesborn(试管婴儿) every 5 days. The most recent releases landed on September 10, 2026 and February 24, 2026 respectively.

## The numbers

| Metric | PDF转换器 | Lesborn(试管婴儿) |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 5 days** |
| Size | 34 MB | 27 MB |
| Requires iOS | **11.0** | 13.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [鑫鑫 陈](https://appshunter.io/developer/1647351343) | [Wuhan Xiangyin Information Technology Co., Ltd](https://appshunter.io/developer/1712626845) |

## What reviewers say

### PDF转换器

[App page](https://appshunter.io/ios/app/pdf/id1659370888)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| pdf转换器周订阅 | $3.99 | per 7 days |
| pdf转换器月订阅 | $12.99 | per month |
| pdf转换器季度订阅 | $19.99 | per 3 months |


### Lesborn(试管婴儿)

[App page](https://appshunter.io/ios/app/lesborn/id6469771665)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is PDF转换器 free?

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

### Is Lesborn(试管婴儿) free?

Lesborn(试管婴儿) is free to download, with no in-app purchases.

### Do PDF转换器 or Lesborn(试管婴儿) have ads?

Neither PDF转换器 nor Lesborn(试管婴儿) shows ads.

### Which is updated more often, PDF转换器 or Lesborn(试管婴儿)?

PDF转换器 ships an update every 2 weeks, and Lesborn(试管婴儿) every 5 days. Most recently, PDF转换器 was updated on September 10, 2026 and Lesborn(试管婴儿) on February 24, 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.*