# Union Authenticator vs 白菜软件HD

The clearest difference is update cadence: 白菜软件HD at every 3 weeks against Union Authenticator's every 6 weeks. Union Authenticator's advantage is device support (3 vs 1). On price, ads, in-app purchases and iOS requirement there is nothing between them.

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

Union Authenticator ships an update every 6 weeks, 白菜软件HD every 3 weeks. The most recent releases landed on October 20, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Union Authenticator | 白菜软件HD |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 3 weeks** |
| Size | 44 MB | 16 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | **iPhone, iPad, iPod** | iPad |
| Age rating | 9+ | 4+ |
| Developer | [Guangzhou JN UNION Technology Co.,Ltd](https://appshunter.io/developer/1377554402) | [Shanghai Lucky Bird Software Technology Co., Ltd.](https://appshunter.io/developer/377662679) |

## What reviewers say

### Union Authenticator

[App page](https://appshunter.io/ios/app/union-authenticator/id1377554403)

**In-app purchases:** none


### 白菜软件HD

[App page](https://appshunter.io/ios/app/hd/id1461703336)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Union Authenticator free?

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

### Is 白菜软件HD free?

白菜软件HD is free to download, with no in-app purchases.

### Do Union Authenticator or 白菜软件HD have ads?

Neither Union Authenticator nor 白菜软件HD shows ads.

### Which is updated more often, Union Authenticator or 白菜软件HD?

Union Authenticator ships an update every 6 weeks, and 白菜软件HD every 3 weeks. Most recently, Union Authenticator was updated on October 20, 2026 and 白菜软件HD on October 6, 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.*