Security Master (Virus Cleaner And AppLocker)

Free antivirus and security app for Android phones to Keep your Device Clean

Ostra Security is free antivirus and security applications for Android phones, can clean virus, protect phone, protect privacy, booster, and Lock your apps to keep them save. Ostra Security include virus cleaner, phone booster and antivirus.

Ostra Security is honestable antivirus, 100% free. With Booster, make phone run fast, you can boost your phone before running game or apps. With Cleaner can make phone 100% Clean from virus, Kill Trojans and clean Junk files, free more space, and free up your storage.

Ostra Security - Antivirus cleaner and app locker is the best choice for a safer, faster and smoother phone experience.

Ostra Security - Antivirus cleaner & appLocker Features :

App & System Scanner :

Scan pre-installed and installed apps and the file system to keep your phone safe from virus and spyware.

Security & Antivirus :

protecting your phone from extortion viruses, malware, adware and Trojans. Through our official partnership with Intel Security, Hi Security is able to offer a world-class antivirus protection service globally.

Phone Booster

Ostra Security uses accessibility features help you to stop unnecessary apps and clean hidden junk files. Make your phone to become smoother.

AppLock

Keep your privacy by locking apps like WhatsApp, Facebook, Gallery or anything you want.

Junk files cleaner

Clean junk files, clean residual files, unused apks and cache to free up storage, boost speed and improve the performance of Android device. Keep phone clod, clean and fast.

WiFi Security

Detect WiFi spy, Test WiFi speed, Security Antivirus will show you how many devices are sharing your bandwidth, with that you can check out which is WiFi spy, remove all spy by your router manage page to make your WiFi safe and fast.

! This app uses Accessibility services

Security Master - Antivirus ! 100% free to download, get the best antivirus NOW !