# 绿优联 vs Authenticator App | Two Factor

The clearest difference is in-app purchases: 绿优联 at none against Authenticator App | Two Factor's 4. 绿优联 also leads on iOS requirement (11.4 vs 16.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Authenticator App | Two Factor sells 4 in-app purchases, starting at $1.99 per 7 days. 绿优联 asks for nothing beyond the download.

绿优联 ships an update monthly, Authenticator App | Two Factor every 2 months. The most recent releases landed on October 3, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | 绿优联 | Authenticator App | Two Factor |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/id1581125220/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Monthly** | Every 2 months |
| Size | 3 MB | 27 MB |
| Requires iOS | **11.4** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [wen qing huang](https://appshunter.io/developer/1493623770) | [Bhadresh Jadav](https://appshunter.io/developer/1887857328) |

## What reviewers say

### 绿优联

[App page](https://appshunter.io/ios/app/id1581125220)

**Features:** macOS Compatibility

**In-app purchases:** none


### Authenticator App | Two Factor

[App page](https://appshunter.io/ios/app/authenticator-app-two-factor/id6773094792)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Premium | $1.99 | per 7 days |
| Monthly Premium | $4.99 | per month |
| Yearly Premium | $19.99 | per year |
| Lifetime Premium | $24.99 | one-time |


## Frequently asked questions

### Is 绿优联 free?

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

### Is Authenticator App | Two Factor free?

Authenticator App | Two Factor is free to download, with in-app purchases available.

### Do 绿优联 or Authenticator App | Two Factor have ads?

Neither 绿优联 nor Authenticator App | Two Factor shows ads.

### Which is updated more often, 绿优联 or Authenticator App | Two Factor?

绿优联 ships an update monthly, and Authenticator App | Two Factor every 2 months. Most recently, 绿优联 was updated on October 3, 2026 and Authenticator App | Two Factor on October 1, 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.*