The antivirus impressed a little more with its reminders about required updates. I was also unable to change the type of scan. Although I was able to see what the scan was doing (“checking for malicious apps” and “checking for vulnerabilities” flashed on my screen), I didn’t get any kind of report on which directories and apps had been investigated. The program runs a “Safety Scanning” utility in less than ten seconds. SecurityĬleanMaster does contain an antivirus tool which can be launched by clicking on the antivirus button on the home screen. To see if CleanMaster is beneficial, I dug through its extensive set of features to discover the truth behind the hype. Although cleanup tools can free up valuable space, they can also drain battery life and impede system performance. Despite 43 million reviews on the Google Play Store-most of which are positive- the jury is very much out on whether optimization apps like CleanMaster help or harm system performance. CleanMaster is one of the most popular junk-cleaning and system optimization tools for Android, featuring everything from social media app notification control to a dedicated WhatsApp scrubber.

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