There are several reliable online antivirus scan for Android mobile applications, a lot of which are free. However, it is important to select a provider that is able to detect malware at high rates and does not consume too much battery power or slow down your device too much.
Avast Free Mobile Security ranks among the best. Its test scores for protection are excellent and it does an excellent job of scanning for viruses, and it is not too demanding on battery life. It comes with a feature that requires apps to enter a PIN to open. This safeguards them from malware that could launch them automatically, potentially stealing sensitive information. The only real drawback is the presence of advertisements, though you can pay a modest monthly or annual cost to eliminate these.
Lookout mobile security, now being rebranded as Lookout Security and Antivirus or Lookout Personal, was one of the first antivirus apps for Android and is still doing a fine job of protecting phones. Its simplicity, clean interface, and absence of ads are some of the reasons for its popularity. Its free tier www.mobilessecur.net comes with the basic options; it detects malware and locates lost phones. It also blocks known phishing websites.
McAfee Mobile Security is another excellent antivirus program. Its powerful anti-theft features let you locate the device that has been lost or remotely lock it or erase its data. Other highlights include a Wi-Fi scanner with a RAM boost as well as a junk cleaner. The only drawbacks are its reliance on internet connections as well as its slow performance when it comes to a security scanner.