Avast Mobile Security is a free antivirus app for Android that protects against viruses and other types of malware. It has been trusted by over 435 million people and offers features such as alerts for spyware or adware-infected apps, protection against phishing attacks, and a VPN to keep online browsing private and safe. The app also provides advanced scans and alerts to avoid scams and compromised passwords.<br/><br/>In addition to antivirus protection, Avast Mobile Security & Antivirus offers over 100 million installs and free features such as a photo vault, file scanner, junk cleaner, web shield, and Wi-Fi security. Premium features include scam protection, app lock, ad removal, and direct support from Avast. Ultimate users can also enjoy a VPN to hide online activities from hackers and ISPs and access paid streaming services from anywhere.<br/><br/>The app's features include an antivirus engine that automatically scans for viruses and other types of malware, app insights to discover how much time is spent using each app, a junk cleaner to clean out unnecessary data, and a photo vault to secure photos with a PIN code, pattern, or fingerprint password. The app also has a web shield to scan and block malware-infected links, Wi-Fi security to check the security of public Wi-Fi networks, and hack alerts to see which passwords have been leaked. The app uses the Device Administrator permission to remotely lock and wipe devices and the Accessibility permission to protect visually impaired and other users against phishing attacks and malicious websites. <br/><br/>Overall, Avast Mobile Security & Antivirus is a comprehensive app that provides advanced protection against malware, phishing attacks, and scams, as well as features to keep online browsing private and secure.