# 线上展厅 vs 闪电PDF转换

The clearest difference is in-app purchases: 线上展厅 at none against 闪电PDF转换's 4. 闪电PDF转换's advantage is iOS requirement (11.0 vs 15.0). On price, update cadence, ads and device support 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. 线上展厅 asks for nothing beyond the download.

线上展厅 ships an update monthly, 闪电PDF转换 every 6 weeks. Both last shipped on October 27, 2026.

## The numbers

| Metric | 线上展厅 | 闪电PDF转换 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Monthly** | Every 6 weeks |
| Size | 346 MB | 94 MB |
| Requires iOS | 15.0 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Hangzhou Kuilong Technology Co.,Ltd](https://appshunter.io/developer/1591361363) | [丽琼 邓](https://appshunter.io/developer/1702793856) |

## What reviewers say

### 线上展厅

[App page](https://appshunter.io/ios/app/id1591361361)

**Features:** macOS Compatibility

**In-app purchases:** none


### 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 |


## Frequently asked questions

### Is 线上展厅 free?

线上展厅 is free to download, with no in-app purchases.

### Is 闪电PDF转换 free?

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

### Do 线上展厅 or 闪电PDF转换 have ads?

Neither 线上展厅 nor 闪电PDF转换 shows ads.

### Which is updated more often, 线上展厅 or 闪电PDF转换?

线上展厅 ships an update monthly, and 闪电PDF转换 every 6 weeks. Most recently, 线上展厅 was updated on October 27, 2026 and 闪电PDF转换 on October 27, 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.*