Our Avira Free Antivirus is a great place to start if it’s just free software security you’re after: It offers cloud-based, real-time protection to help block a huge range of online threats and malware, including the latest viruses, Trojans, and ransomware. That's why we provide free software for your online security and privacy, plus performance enhancement-for Windows, Mac, Android, and iOs devices. At Avira, we believe that everyone should enjoy a safer and more private digital life-anytime, anywhere.