# 统计学小工具 vs PDF Voice Reader .

The clearest difference is in-app purchases: 统计学小工具 at none against PDF Voice Reader .'s 2. 统计学小工具 also leads on iOS requirement (12.0 vs 16.0). On price, ads and device support there is nothing between them.

Both are free to download. PDF Voice Reader . sells 2 in-app purchases, starting at $4.99 per 7 days. 统计学小工具 asks for nothing beyond the download.

## The numbers

| Metric | 统计学小工具 | PDF Voice Reader . |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Size | 1 MB | 5 MB |
| Requires iOS | **12.0** | 16.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [东旭 杨](https://appshunter.io/developer/1699073559) | [PORTSUN BIOTECH LIMITED](https://appshunter.io/developer/1700670617) |

## What reviewers say

### 统计学小工具

[App page](https://appshunter.io/ios/app/id6458534187)

**Features:** macOS Compatibility

**In-app purchases:** none


### PDF Voice Reader .

[App page](https://appshunter.io/ios/app/pdf-voice-reader/id6760875544)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Pro Access | $4.99 | per 7 days |
| Yearly Pro Access | $39.99 | per year |


## Frequently asked questions

### Is 统计学小工具 free?

统计学小工具 is free to download, with no in-app purchases.

### Is PDF Voice Reader . free?

PDF Voice Reader . is free to download, with in-app purchases available.

### Do 统计学小工具 or PDF Voice Reader . have ads?

Neither 统计学小工具 nor PDF Voice Reader . shows ads.

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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.*