There are many different antivirus programs available for Android phones, and many of them are free to use. Some of the best free antivirus options for Android include:

• AVG Antivirus: This antivirus program offers basic protection against malware, viruses, and other online threats. It also includes a call and text blocker and an app locker to help protect your privacy.
• Avast Mobile Security: This antivirus program includes features such as a malware scanner, call and text blocking, and a WIFI security feature that checks for potential vulnerabilities on public networks. It also has a theft protection feature that can help you locate a lost or stolen device.
• McAfee Mobile Security: This antivirus program includes a variety of features, such as a malware scanner, app locker, and call and text blocking. It also has a feature that allows you to remotely lock or wipe your device in the event that it is lost or stolen.
• Kaspersky Mobile Antivirus: This antivirus program offers basic protection against malware and other threats, as well as a call and text blocker and an app locker. It also includes a feature that allows you to scan your device for vulnerabilities and take steps to fix them.

In addition to these options, there are many other free antivirus programs available for Android. It’s important to choose one that is reliable and has a good reputation, as well as a feature set that meets your needs.