# 認知保護王 vs UniphoneViewer

The clearest difference is iOS requirement: UniphoneViewer at 12.0 against 認知保護王's 17.1. On price, update cadence, ads and in-app purchases there is nothing between them.

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

認知保護王 ships an update fortnightly, UniphoneViewer every 3 weeks. The most recent releases landed on September 28, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | 認知保護王 | UniphoneViewer |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 3 weeks |
| Size | 147 MB | 33 MB |
| Requires iOS | 17.1 | **12.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [YIZE LIAO](https://appshunter.io/developer/1511365129) | [YANG SHU-CHAO](https://appshunter.io/developer/784264853) |

## What reviewers say

### 認知保護王

[App page](https://appshunter.io/ios/app/id1601522643)

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

**In-app purchases:** none


### UniphoneViewer

[App page](https://appshunter.io/ios/app/uniphoneviewer/id1661490281)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 認知保護王 free?

認知保護王 is free to download, with no in-app purchases.

### Is UniphoneViewer free?

UniphoneViewer is free to download, with no in-app purchases.

### Do 認知保護王 or UniphoneViewer have ads?

Neither 認知保護王 nor UniphoneViewer shows ads.

### Which is updated more often, 認知保護王 or UniphoneViewer?

認知保護王 ships an update fortnightly, and UniphoneViewer every 3 weeks. Most recently, 認知保護王 was updated on September 28, 2026 and UniphoneViewer on October 10, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*