# 闪电PDF转换 vs 巴典早房

The clearest difference is in-app purchases: 巴典早房 at none against 闪电PDF转换's 4. 闪电PDF转换's advantage is update cadence (every 6 weeks vs every 8 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. 闪电PDF转换 sells 4 in-app purchases, starting at $3.99 per month. 巴典早房 asks for nothing beyond the download.

闪电PDF转换 ships an update every 6 weeks, 巴典早房 every 8 months. The most recent releases landed on September 13, 2026 and June 11, 2026 respectively.

## The numbers

| Metric | 闪电PDF转换 | 巴典早房 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 8 months |
| Size | 94 MB | 155 MB |
| Requires iOS | 11.0 | **10.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [丽琼 邓](https://appshunter.io/developer/1702793856) | [上海炬尚信息科技有限公司](https://appshunter.io/developer/1647531208) |

## What reviewers say

### 闪电PDF转换

[App page](https://appshunter.io/ios/app/pdf-pdfpdf/id1618181802)

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 一个月会员套餐 | $3.99 | per month |
| 六个月会员 | $8.99 | per 6 months |
| 一年会员 | $10.99 | per year |
| 永久会员 | $27.99 | one-time |


### 巴典早房

[App page](https://appshunter.io/ios/app/id6443595848)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 闪电PDF转换 free?

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

### Is 巴典早房 free?

巴典早房 is free to download, with no in-app purchases.

### Do 闪电PDF转换 or 巴典早房 have ads?

Neither 闪电PDF转换 nor 巴典早房 shows ads.

### Which is updated more often, 闪电PDF转换 or 巴典早房?

闪电PDF转换 ships an update every 6 weeks, and 巴典早房 every 8 months. Most recently, 闪电PDF转换 was updated on September 13, 2026 and 巴典早房 on June 11, 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.*