If you’re looking for a solid combination of antivirus detection, a free VPN and storage optimization tools along the original source with additional security features such as anti-theft protections and parental controls, then the most effective free antivirus is Sophos Intercept X for Mobile. It has received top marks from A-V Comparatives and AV-Test, and its malware scanner has an impressive 100 % performance rate in real-time attacks and widespread testing on more than 3700 Android applications.
Avira is another solid option. It comes with a variety of features and is among the most popular choices in the Play Store. There are more than 100 million downloads and 6.5,000,000 reviews. Avira detects malware with an unbeatable success rate of 100. This is close to the paid competitors. Avira also comes with a wonderful set of privacy tools which includes an absolutely 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 a great alternative for Android users looking for an antivirus program that is reliable. Its advanced antivirus engine is not a burden on your system and its security features include an app privacy scan that informs you what apps can access your personal information or location. Its user interface is simple to use and it is compatible with Android 7 or higher. Its top features include the ability to scan your device for rooted devices, ransomware detection, and security audits that show unsecured settings that you should disable, like developer mode.