# 安信盾 vs 阮之音

The clearest difference is update cadence: 阮之音 at every 2 weeks against 安信盾's every 2 months. 安信盾's advantage is iOS requirement (9.0 vs 12.0). 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.

安信盾 ships an update every 2 months, 阮之音 every 2 weeks. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | 安信盾 | 阮之音 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 2 weeks** |
| Size | 34 MB | 48 MB |
| Requires iOS | **9.0** | 12.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 17+ |
| Developer | [Anhui Certificate Authority CO.LTD](https://appshunter.io/developer/1297167819) | [合肥市海光科技有限责任公司](https://appshunter.io/developer/1740717416) |

## What reviewers say

### 安信盾

[App page](https://appshunter.io/ios/app/id1555183514)

**Features:** macOS Compatibility

**In-app purchases:** none


### 阮之音

[App page](https://appshunter.io/ios/app/id6487365573)

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

**In-app purchases:** none


## Frequently asked questions

### Is 安信盾 free?

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

### Is 阮之音 free?

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

### Do 安信盾 or 阮之音 have ads?

Neither 安信盾 nor 阮之音 shows ads.

### Which is updated more often, 安信盾 or 阮之音?

安信盾 ships an update every 2 months, and 阮之音 every 2 weeks. Most recently, 安信盾 was updated on November 3, 2026 and 阮之音 on October 30, 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.*