# 闪电PDF转换 vs TXT格式助手

The clearest difference is update cadence: 闪电PDF转换 at every 6 weeks against TXT格式助手's every 4 months. On price, ads, in-app purchases 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 and TXT格式助手 sells 3 in-app purchases, starting at $0.99 per 7 days. Whichever you choose, the download price is not the number that matters.

闪电PDF转换 ships an update every 6 weeks, TXT格式助手 every 4 months. The most recent releases landed on October 16, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | 闪电PDF转换 | TXT格式助手 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 4 months |
| Size | 94 MB | 33 MB |
| Requires iOS | **11.0** | 12.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [丽琼 邓](https://appshunter.io/developer/1702793856) | [世矩 余](https://appshunter.io/developer/1615562695) |

## 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 |


### TXT格式助手

[App page](https://appshunter.io/ios/app/txt/id6473817656)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 连续包周 | $0.99 | per 7 days |
| 连续包月 | $0.99 | per month |
| 连续包年 | $7.99 | per year |


## 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 TXT格式助手 free?

TXT格式助手 is free to download, with in-app purchases available.

### Do 闪电PDF转换 or TXT格式助手 have ads?

Neither 闪电PDF转换 nor TXT格式助手 shows ads.

### Which is updated more often, 闪电PDF转换 or TXT格式助手?

闪电PDF转换 ships an update every 6 weeks, and TXT格式助手 every 4 months. Most recently, 闪电PDF转换 was updated on October 16, 2026 and TXT格式助手 on October 14, 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.*