# 小牧同步工具 vs Authenticator App | Two Factor

The clearest difference is in-app purchases: 小牧同步工具 at none against Authenticator App | Two Factor's 4. 小牧同步工具 also leads on iOS requirement (13.0 vs 16.0). On price, 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. 小牧同步工具 asks for nothing beyond the download.

## The numbers

| Metric | 小牧同步工具 | Authenticator App | Two Factor |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Every 2 months |
| Size | 1 MB | 27 MB |
| Requires iOS | **13.0** | 16.0 |
| Devices | iPhone, iPod | iPhone, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [JOMOO](https://appshunter.io/developer/833066152) | [Bhadresh Jadav](https://appshunter.io/developer/1887857328) |

## What reviewers say

### 小牧同步工具

[App page](https://appshunter.io/ios/app/id6761158393)

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

**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 小牧同步工具 free?

小牧同步工具 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 小牧同步工具 or Authenticator App | Two Factor have ads?

Neither 小牧同步工具 nor Authenticator App | Two Factor shows ads.

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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.*