# 润A+ vs 智信签名

The clearest difference is update cadence: 智信签名 at every 3 weeks against 润A+'s every 5 weeks. 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.

润A+ ships an update every 5 weeks, 智信签名 every 3 weeks. The most recent releases landed on October 15, 2026 and October 23, 2026 respectively.

## The numbers

| Metric | 润A+ | 智信签名 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 3 weeks** |
| Size | 120 MB | 87 MB |
| Requires iOS | **12.1** | 13.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [光涛 戴](https://appshunter.io/developer/1509681686) | [西安格康信息科技有限公司](https://appshunter.io/developer/1830122426) |

## What reviewers say

### 润A+

[App page](https://appshunter.io/ios/app/a-plus/id1510666891)

**In-app purchases:** none


### 智信签名

[App page](https://appshunter.io/ios/app/id6581488121)

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

**In-app purchases:** none


## Frequently asked questions

### Is 润A+ free?

润A+ is free to download, with no in-app purchases.

### Is 智信签名 free?

智信签名 is free to download, with no in-app purchases.

### Do 润A+ or 智信签名 have ads?

Neither 润A+ nor 智信签名 shows ads.

### Which is updated more often, 润A+ or 智信签名?

润A+ ships an update every 5 weeks, and 智信签名 every 3 weeks. Most recently, 润A+ was updated on October 15, 2026 and 智信签名 on October 23, 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.*