# 中威OFD阅读器 vs 空洞的圣巢之旅

The clearest difference is iOS requirement: 中威OFD阅读器 at 9.0 against 空洞的圣巢之旅's 16.6. 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 | 空洞的圣巢之旅 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | — | Every 3 weeks |
| Size | 185 MB | 7 MB |
| Requires iOS | **9.0** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Jiangsu Trueway Technology Software Company](https://appshunter.io/developer/534140407) | [wei zhang](https://appshunter.io/developer/630921330) |

## 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


### 空洞的圣巢之旅

[App page](https://appshunter.io/ios/app/id6775213975)

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

**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 空洞的圣巢之旅 free?

空洞的圣巢之旅 is free to download, with no in-app purchases.

### Do 中威OFD阅读器 or 空洞的圣巢之旅 have ads?

Neither 中威OFD阅读器 nor 空洞的圣巢之旅 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.*