# Master Key VPN vs 小牛加速器

The clearest difference is rating: 小牛加速器 at 4.3 against Master Key VPN's 3.0. 小牛加速器 also leads on update cadence (weekly vs every 5 weeks) and ratings volume (147 vs 20). Master Key VPN's advantage is review sentiment (55% vs 17%) and in-app purchases (none vs 3). On price, ads and iOS requirement there is nothing between them.

Both are free to download. 小牛加速器 sells 3 one-off in-app purchases. Master Key VPN asks for nothing beyond the download.

小牛加速器 holds the better App Store score, 4.3 against 3.0. That said, the two scores are not equally well evidenced: 小牛加速器 has 147 ratings behind it against 20, so its average is the more settled of the two. Written reviews complicate that: 55% of Master Key VPN's written reviews are positive against 17% of 小牛加速器's, so the app with the better star average is not the one people write more warmly about.

Master Key VPN ships an update every 5 weeks, 小牛加速器 weekly. The most recent releases landed on November 3, 2026 and November 9, 2026 respectively.

## The numbers

| Metric | Master Key VPN | 小牛加速器 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.0 (20 ratings)](https://appshunter.io/ios/app/master-key-vpn-fast-and-secure/id1600010960/reviews) | **[4.3 (147 ratings)](https://appshunter.io/ios/app/vpn/id6755233306/reviews)** |
| Number of ratings | 20 | **147** |
| Positive reviews | **54.5% of reviews** | 16.7% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Weekly** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 4 MB | 120 MB |
| Requires iOS | 15.6 | 15.6 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Two Bytes LLC](https://appshunter.io/developer/1749224709) | [XIONGYING NETWORK TECHNOLOGY Co., LTD](https://appshunter.io/developer/1779501762) |

## What reviewers say

### Master Key VPN

[App page](https://appshunter.io/ios/app/master-key-vpn-fast-and-secure/id1600010960)

This app provides a secure and private way to access websites and applications globally. It offers fast and stable connections with a commitment to a strict no-log policy, ensuring your online activity remains hidden.

**Highlights:** Global website and app access, Fast and stable VPN connections, No account registration required, Strict no-log policy, Multi-protocol support, Hide IP address and location

**Features:** Vision Pro support

**In-app purchases:** none


### 小牛加速器

[App page](https://appshunter.io/ios/app/vpn/id6755233306)

This tool provides secure, stable, and high-speed network access with industry-leading encryption. It offers unlimited speed and data, a simple one-click connection, and intelligent path selection for a comfortable user experience. The service strictly adheres to a no-logging policy to protect user privacy.

**Highlights:** Top-tier encryption, Unlimited speed and data, One-click connection, Automatic optimal path selection, Strict no-logging policy, Multi-device support

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 一周会员 | $2.99 | one-time |
| 一个月会员 | $6.99 | one-time |
| 一年会员 | $49.99 | one-time |


## Frequently asked questions

### Is Master Key VPN free?

Master Key VPN is free to download, with no in-app purchases.

### Is 小牛加速器 free?

小牛加速器 is free to download, with in-app purchases available.

### Which has better reviews, Master Key VPN or 小牛加速器?

小牛加速器 is rated higher. Master Key VPN averages 3.0 out of 5 from 20 ratings, while 小牛加速器 averages 4.3 from 147 ratings.

### Do Master Key VPN or 小牛加速器 have ads?

Neither Master Key VPN nor 小牛加速器 shows ads.

### Which is updated more often, Master Key VPN or 小牛加速器?

Master Key VPN ships an update every 5 weeks, and 小牛加速器 weekly. Most recently, Master Key VPN was updated on November 3, 2026 and 小牛加速器 on November 9, 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.*