Avast Pro Antivirus has a strong feature list with good scores for protection and usability, though it may cause your computer to run slower. For a free antivirus tool, Avast is well decked out with features. Alongside the expected on-demand and real-time virus scan capabilities. Transparency and Trust – We pride ourselves on being the only site where users can freely contribute and share their reviews on any antivirus with other. Avast is among the best free antiviruses but those are not even comparable with the best paid ones. Avast also offers 2 paid premium versions that are better. Read our expert's review about Avast Antivirus. Ratings include security services, pricing structures, warranty and company history. Avast Free Antivirus is one of the best free antivirus software programs you can download. It's a complete tool that protects you against threats. Avast Free Antivirus offers lots of extra features, but its malware protection is MORE: Antivirus Software - Reviews of Free and Paid Versions. Read our full review of Avast Internet Security and Avast Premier software Though Avast does have a free antivirus program, its paid versions. Avast Free Antivirus combines an antivirus engine that scores very well in testing with a surprisingly extensive collection of bonus features. Founded in , Avast Software has grown into an antivirus giant which claims to be number one in the consumer security market, with more.