Comparison

Master Key VPN vs 小牛加速器

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Master Key VPN

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
Read full description

MasterKey VPN is a trusted security, privacy and access application. Securely and privately access all websites and applications from anywhere in the world to prevent anyone from tracking you. No registration to use the functionality of the application, you don’t need to create an account. Unparalleled vpn performance: Owns all vpn servers to ensure the fastest speeds, as well as the most stable and secure connections. Maximum vpn coverage: Provides maximum vpn coverage from multiple countries such as the USA, Japan, Singapore, Canada, Australia… . Uses expert-level algorithms for your network traffic and help you to hide your address in the Internet world. When using MasterKey VPN, you don't have to worry about your real IP, geographical location, network traces will be leaked. Multi-protocol support Support a variety of protocols, under the premise of security, the system will automatically choose the network protocol that suits you, to meet your different needs for speed and privacy protection. No log policy We are committed to strictly implementing a no-log policy to ensure the privacy for you. Privacy Policy: https://twobytes-c9e5f.web.app/privacy/privacy.html Terms of Service: https://twobytes-c9e5f.web.app/support/support.html

About

小牛加速器

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
Read full description

在数字化时代,隐私不应是奢侈品。我们致力于为用户提供安全、稳定、高速网络接入服务的 VPN 工具。无论您是在咖啡馆使用公共 Wi-Fi,还是在旅途中处理敏感办公数据,都能为您建立起一道坚固的加密屏障。 核心功能: • 顶级加密保护:采用行业领先的加密协议,防止个人信息及浏览轨迹被第三方追踪。 • 不限速不限流:彻底告别流量焦虑,让您无需时刻盯着流量数据,实现最舒适的体验。 • 一键连接:极简界面设计,无需复杂配置,只需点击按钮,即可立即开启安全保护。 • 自动选择最优路径:智能算法根据您的当前网络状况,自动为您匹配。 • 严格无日志政策:我们尊重并保护您的隐私。我们承诺不记录、不存储任何用户的活动日志或连接日志。 为什么选择我们? • 安全连接公共 Wi-Fi:在机场、酒店或商场使用公共网络时,自动阻断网络威胁。 • 无限制体验:告别网络拥塞,流畅访问您喜爱的合规内容与应用。 • 多设备支持:一个订阅账号,守护您的多台 iOS 设备。 隐私协议:https://www.butterfly.clothing/privacy.html 技术支持:https://www.butterfly.clothing/index.html

Screenshots

Master Key VPN2 screens
小牛加速器3 screens

Verdict

The call

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.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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.

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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.

Scorecard7 real differences · 3 level
Master Key VPN versus 小牛加速器: the parameters behind the verdict, then further details
ParameterMaster Key VPN小牛加速器
PriceFreeFree
Rating3.0 (20 ratings)4.3 (147 ratings) — better
Positive reviews54.5% of reviews — better16.7% of reviews
Number of ratings20147 — better
Update frequencyEvery 5 weeksWeekly — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPod, Mac — betteriPhone, iPod
Requires iOS15.615.6
Further details — not scored
Size4 MB120 MB
Age rating4+4+
DeveloperTwo Bytes LLCXIONGYING NETWORK TECHNOLOGY Co., LTD

Customer experience

Master Key VPN

All ratings19 ratings
Positive47.4%
Neutral0.0%
Negative52.6%
Written reviews22 reviews
Positive54.5%
Neutral0.0%
Negative45.5%

小牛加速器

All ratings27 ratings
Positive29.6%
Neutral3.7%
Negative66.7%
Written reviews6 reviews
Positive16.7%
Neutral0.0%
Negative83.3%

In-app purchases

None

Master Key VPN

No in-app purchases

3 purchases

小牛加速器

One-time3
  • 一周会员$2.99
  • 一个月会员$6.99
  • 一年会员$49.99

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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