System Shield is described as 'Has a variety of tools that cover every aspect of PC security. These tools can make sure you’re safe on the Internet, and that your files won’t fall into the wrong hands. Here are the ones that make this happen:' and is a Anti-Virus app in the security & privacy category. There are more than 10 alternatives to System Shield for a variety of platforms, including Windows, Mac, Android, Linux and Android Tablet apps. The best System Shield alternative is ClamAV, which is both free and Open Source. Other great apps like System Shield are ESET NOD32 Antivirus, Comodo Internet Security, Hypatia Malware Scanner and Kapitano.