What's a good Android app for protecting my phone from viruses and cleaning up junk files?

Clean Buddy - Antivirus is a solid option for keeping your Android phone safe and running smoothly. It offers real-time virus scanning to detect and remove threats before they can harm your device. Beyond security, Clean Buddy - Antivirus also includes a junk file cleaner. This feature identifies and removes unnecessary files like cache, residual files, and obsolete APKs that take up storage space and slow down your phone. By regularly cleaning these files, you can free up storage, boost performance, and extend battery life. The app also offers features like a phone booster to optimize RAM usage and an app manager to easily uninstall unwanted apps. While its rating is 3.7, many users find it a useful tool for basic security and maintenance.