Avira is a German cybersecurity brand headquartered in Tettnang, Germany, and has been owned by the American company Gen Digital, which also owns Norton, Avast and AVG, since early 2021. Avira Free Security provides real time antivirus protection, a limited VPN, password manager, ad blocking browser extension and basic performance tools for Windows, Mac, Android and iOS at no cost.

Paid tiers build on the free base: Antivirus Pro adds a firewall, Internet Security adds a software updater and password manager, and Avira Prime bundles unlimited VPN data, PC tune up tools and coverage for up to 25 devices across platforms. Subscriptions are billed monthly or annually and renew automatically, with a 60 day money back guarantee on annual plans.

Comodo Antivirus is developed by Comodo, a cybersecurity company founded in 1998 and now headquartered in Clifton, New Jersey. The product uses a default deny approach: any file that is not already verified as safe runs inside an isolated sandbox through Comodo's Auto Containment technology, rather than being scanned and allowed to run freely like traditional signature based tools. A permanently free version is available alongside paid plans.

Paid tiers, sold as Internet Security Pro and Internet Security Complete, add live GeekBuddy expert support, online backup and expanded device coverage on top of the free antivirus, firewall and web filtering features. The interface offers Paranoid, Safe, Clean PC and Training security modes for different levels of user control. Plans are billed annually and Comodo offers a 30 day money back guarantee on paid purchases.

Emsisoft is a cybersecurity company originally founded in Austria in 2003, now headquartered in Nelson, New Zealand, and majority owned by the German company Hornetsecurity since 2024. Its consumer product, Anti-Malware Home, combines a dual-engine scanner with a behavior blocker, web protection and dedicated anti-ransomware monitoring to catch known and emerging threats on Windows and macOS.

Emsisoft also sells Business Security and Enterprise Security plus EDR for organizations, managed through a cloud based console with mobile apps and a REST API for automation. Plans are billed annually, biennially or triennially and scale by device or endpoint count. A 30 day free trial and 30 day money back guarantee are available on paid plans.

G DATA CyberDefense AG is a German cybersecurity company headquartered in Bochum, Germany. Its consumer lineup includes Antivirus for Windows and macOS, Internet Security and Total Security, built around G DATA's DeepRay and BEAST technologies, which use behavioral analysis and artificial intelligence to catch disguised and previously unknown malware alongside traditional signature based scanning.

All plans include real time protection, exploit protection and web protection, while Internet Security and Total Security add a firewall, ransomware defense, parental controls and secure banking tools, plus mobile security apps for Android and iOS. Total Security also adds a password manager, file encryption and performance tuning. G DATA develops and supports its software from Germany and offers a 30 day free trial on paid plans.

Webroot, an OpenText company headquartered in Broomfield, Colorado, provides cloud based antivirus software for PCs, Macs, Android and iOS devices, and Chromebooks. The company was an early adopter of cloud and machine learning based threat detection, which lets scans run quickly with a small footprint on system resources. Webroot Essentials covers core antivirus, anti phishing, firewall and password management for one to five devices.

Higher tier plans, Premium and Total Protection, add identity monitoring, dark web monitoring, VPN access and cloud backup with unlimited storage. Plans are sold on an annual subscription for one, three, five or ten devices, with family options bundling multiple identities under the Premium Family and Total Protection Family tiers.

F-Secure is a cybersecurity company headquartered in Helsinki, Finland, offering consumer security software under the Internet Security and Total product names. Plans cover 1, 3, or 5 devices running Windows, Mac, Android, or iOS, with antivirus, ransomware protection, browsing protection, banking protection, and SMS scam filtering included at every tier.

F-Secure Total adds an unlimited VPN with a kill switch, a password manager with breach monitoring, and 24/7 dark web identity monitoring. Both product lines include scam protection for shopping, phishing, and SMS messages, plus a gaming mode. F-Secure does not offer a permanent free plan but provides a 30-day free trial and a 30-day money-back guarantee on purchases.

Sophos Home is the consumer antivirus product from Sophos, a cybersecurity company headquartered in Abingdon, United Kingdom. It offers a free plan covering up to 3 devices with core antivirus and web protection, plus a paid Premium plan that extends coverage to 10 Windows and Mac computers and an unlimited number of iOS and Android devices, all managed from a central online dashboard.

Sophos Home Premium adds ransomware protection, webcam and microphone access alerts, keylogger protection, exploit defense, and parental web filtering, using the same AI-based threat detection engine found in Sophos business products. A 30-day free trial of Premium is available without a credit card, and paid subscriptions include a 30-day money-back guarantee.

Trend Micro is a cybersecurity company headquartered in Tokyo, Japan, offering consumer security software under the names Antivirus+ Security, Internet Security, Maximum Security, and Premium Security Suite. Plans scale from single-device antivirus protection up to 10-device coverage across Windows, Mac, Android, iOS, and Chromebook, using cloud-based AI to detect malware, ransomware, and phishing attempts.

Higher tiers add Pay Guard for secure online banking and shopping, parental controls, social media privacy checks, and a gaming mode that pauses notifications. The Premium Security Suite includes a VPN, password manager, and identity theft monitoring with 24/7 support. Trend Micro does not offer a permanent free antivirus tier but provides a 30-day free trial.

AVG is an antivirus brand that began as Grisoft in Brno, Czechoslovakia, in 1991 and is now part of Gen Digital, with AVG Technologies historically headquartered in Amsterdam, Netherlands. It offers a permanently free antivirus product plus paid AVG Internet Security and AVG Ultimate plans covering up to 10 devices across Windows, Mac, Android, and iOS.

AVG Internet Security adds a firewall, ransomware protection, webcam protection, and payment protection for online banking and shopping. AVG Ultimate bundles Internet Security with AVG Secure VPN and AVG TuneUp performance software. AVG also provides a browser extension that flags phishing sites and blocks tracking, and paid plans include a 30-day money-back guarantee.

Avast is an antivirus and online security company based in Prague, Czech Republic, and owned by Gen Digital. It offers a free antivirus product alongside paid Premium Security and Ultimate plans that add ransomware protection, a firewall, webcam protection, and scam detection for email, SMS, and phone calls. The software runs on Windows, Mac, Android, and iOS, with plans covering a single device or up to ten devices under one subscription.

Premium Security includes real-time threat detection, a sandbox for testing suspicious files, file shredding, and Wi-Fi network scanning. The Ultimate bundle adds Avast SecureLine VPN, Cleanup Premium performance tools, and AntiTrack anti-tracking software. Avast provides browser extensions for Chrome, Firefox, and Edge, and paid subscriptions include a 30-day money-back guarantee.