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If you want a good combination of security, virus detection, a no-cost VPN and storage optimization tools, as well as extra security features such as anti-theft protections and parental controls, then the most effective free antivirus is Sophos Intercept X for Mobile. It is rated highly by A-V Comparisons and AV-Test and its malware scanner has an impressive 100 percent effectiveness in real-time attacks as well as extensive testing on more than 3700 Android applications.
Avira is a good alternative. It comes with a range of features which makes it one of the most popular options in the Play Store. There are more than 100,000,000 downloads, and 6.5,000,000 reviews. Avira can detect malware with a 100 percent success rate, which is very close to its paid competition. It also comes with a good collection of privacy tools that includes a free VPN with 200MB of data per day and a password manager and its annual paid plans include a risk-free 60-day money-back guarantee.
Bitdefender is an excellent option for Android users searching for a trustworthy antivirus software. Its advanced antivirus engine is not a burden on the system, and its security features include a privacy scan that lets you know which apps have access to your personal data or location. The user interface is easy to navigate and it’s compatible with Android 7 and higher. Its top features include an rooted device scanner that detects ransomware, as well as an audit of security that reveals the unsecure settings you need to disable, like developer mode.