# 录音转文字 vs PDF合并拆分助手

The clearest difference is in-app purchases: PDF合并拆分助手 at none against 录音转文字's 1. 录音转文字's advantage is update cadence (every 3 weeks vs every 6 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. 录音转文字 sells 1 one-off in-app purchase. PDF合并拆分助手 asks for nothing beyond the download.

录音转文字 ships an update every 3 weeks, PDF合并拆分助手 every 6 weeks. The most recent releases landed on September 9, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | 录音转文字 | PDF合并拆分助手 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | **Every 3 weeks** | Every 6 weeks |
| Size | 23 MB | 78 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [麒 贺](https://appshunter.io/developer/1613261212) | [Qun Cao](https://appshunter.io/developer/1655069600) |

## What reviewers say

### 录音转文字

[App page](https://appshunter.io/ios/app/and/id1627205127)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 永久去除广告 | $0.99 | one-time |


### PDF合并拆分助手

[App page](https://appshunter.io/ios/app/pdf-pdf/id6770174946)

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

**In-app purchases:** none


## Frequently asked questions

### Is 录音转文字 free?

录音转文字 is free to download, with in-app purchases available.

### Is PDF合并拆分助手 free?

PDF合并拆分助手 is free to download, with no in-app purchases.

### Do 录音转文字 or PDF合并拆分助手 have ads?

Both 录音转文字 and PDF合并拆分助手 show ads.

### Which is updated more often, 录音转文字 or PDF合并拆分助手?

录音转文字 ships an update every 3 weeks, and PDF合并拆分助手 every 6 weeks. Most recently, 录音转文字 was updated on September 9, 2026 and PDF合并拆分助手 on September 19, 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.*