Security Master - Antivirus, VPN, AppLock, Booster APK is a Tools Apps by Cheetah Mobile (AppLock & AntiVirus). It has an overall rating of 4.7 with 24323223 reviews on Google Play Store. Estimated download count of this app is 500,000,000 - 1,000,000,000. Latest of version of Security Master - Antivirus, VPN, AppLock, Booster APK is 4.3.6 which comes with several changes that you can see in the What's New section below. We at provide Original APK apps and games with direct download links. You can download Security Master - Antivirus, VPN, AppLock, Booster 4.3.6 APK from the download section.

The original CM Security upgraded to the 🆕 Security Master - Antivirus, VPN, AppLock, Booster (by CM, Cheetah Mobile) and redefined the scope of Phone Security: protects not only your phone but also your privacy. Security Master introduced Intelligent Diagnosis to detect your phone status, including Antivirus, Junk Clean, and Phone Booster (Battery Saver, and CPU Cooler) in time. All the necessary features to keep your phone safe & healthy.

Security Master Key features:

💎 Intelligent Diagnosis - Antivirus, Junk Clean, and Phone Booster
Our famous big button design upgraded to intelligently diagnose your most needed solution.
Antivirus – Keep your phone and privacy safe from virus & malware with #1 antivirus engine.
Junk Clean - Intelligently scan and remove junk files including system and app caches with just one tap.
Phone Boost, Battery Saver, and CPU Cooler – Remove background apps that take high memory usage, overheat and drain battery, optimize phone performance and speed up phone.

📡 SafeConnect VPN
Security Master (by CM) presents free VPN, proxy & unblock solution. With SafeConnect VPN, you can apply virtual location to enhance security, freely access favorite contents and protect online data transmission to prevent leak of online banking information, private messages, and browsing history.

✉️Message Security
Message Security (by CM) hides notifications timely to protect your privacy. It gathers all chat notifications into one and makes them easier to read & manage.

AppLock - Lock Bluetooth & Wi-Fi switches, incoming calls, apps, photos, or any private data with a pattern, PIN code, or fingerprint.
Intruder Selfie - Take photo of intruders who trying to break in your phone. AppLock feature protects apps privacy from snoopers. (Intruder Selfie for phone luck screen needs device administrator permission)
Disguise cover - Disguises lock screen so that no one is aware of you are using AppLock while keeping your secret & privacy safe.

Terms of service:
Privacy Policy:
Security Master has used ACCESSIBILITY SERVICE.

Download Security Master - Antivirus, VPN, AppLock, Booster 4.3.6 APK

What's New

  • Some powerful features added which require additional permissions to make your phone safer.
  • 1.New way to fully protect your privacy (require Calendar permission)
  • 2.Add Call Recorder feature (require Microphone permission)
  • 3.More personalized settings to beautify your phone
  • None of your personal info will be collected per the Privacy Policy.
  • New features are only accessible to some users now, welcome to contact us to try it in advance.

Additional Information


January 03, 2018

Content Rating



500,000,000 - 1,000,000,000

Current Version


Required Android

Varies with device

Get it on

Google Play

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