# 中威OFD阅读器 vs 校园应急播报

The clearest difference is iOS requirement: 中威OFD阅读器 at 9.0 against 校园应急播报's 13.0. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | 中威OFD阅读器 | 校园应急播报 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | — | Every 29 months |
| Size | 185 MB | 6 MB |
| Requires iOS | **9.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 9+ |
| Developer | [Jiangsu Trueway Technology Software Company](https://appshunter.io/developer/534140407) | [Guangzhou DSPPA Audio Co., Ltd.](https://appshunter.io/developer/1408491681) |

## What reviewers say

### 中威OFD阅读器

[App page](https://appshunter.io/ios/app/ofd/id1493165089)

**Features:** macOS Compatibility

**In-app purchases:** none


### 校园应急播报

[App page](https://appshunter.io/ios/app/id6451129401)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 中威OFD阅读器 free?

中威OFD阅读器 is free to download, with no in-app purchases.

### Is 校园应急播报 free?

校园应急播报 is free to download, with no in-app purchases.

### Do 中威OFD阅读器 or 校园应急播报 have ads?

Neither 中威OFD阅读器 nor 校园应急播报 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.*