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Bitdefender Total Security vs Avira Free Security: catalog facts
Bitdefender Total Security	Avira Free Security
Paid Paid subscription, with renewal discounts for existing customers.	Freemium Free tier with paid Internet Security and Prime plans.
Windows, macOS, Android, iOS	Windows, macOS, Android, iOS
Malware scanning, ransomware protection and firewall in one suite Covers multiple devices in a household	Real-time antivirus at no cost Extra tools like software updater and browser safety
Paid subscription Closed source	Closed source Upsells paid plans and premium tools
Downloadable app	Downloadable app
Closed source	Closed source
License not stated	License not stated
Not stated if an account is needed	Not stated if an account is needed
Not stated if it works offline	Needs internet
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 24, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.