Best Antivirus Software · head-to-head

Bitdefender vs Avast

A sourced, side-by-side comparison for antivirus software. Avast has the lower entry price. Every figure links to the public page it was captured from — the vendor's own wherever the vendor publishes the number, otherwise the named public source — with the date we captured it.

Avast has the lower entry price — Bitdefender starts at $2.08/mo, Avast at $0/mo. Free tier: Bitdefender Yes, Avast Yes. HIPAA: Bitdefender —, Avast —.

As of 2026-09-02 · figures link to their source below

Side by side

Bitdefender

$2.08/mo entry
Entry price$2.08/mo (Bitdefender Antivirus Plus (1 device))
Free tierYes
HIPAA (BAA)
SOC 2
GDPR
Best forWindows-primary households wanting strong detection with low system overhead

Avast

$0/mo entry
Entry price$0/mo (Avast Free Antivirus)
Free tierYes
HIPAA (BAA)
SOC 2
GDPRYes
Best forBudget users wanting a full-featured forever-free antivirus

Sources — Bitdefender: bitdefender.com (verified 2026-09-02) · Avast: avast.com (verified 2026-09-02)

Key features

Bitdefender: Behavior-based threat detection (not just signature scanning); Auto Sandbox isolates suspicious files before execution; Multi-layer ransomware protection with file recovery; Bitdefender Central cloud console for remote device management; Minimal performance impact — consistently top-ranked in AV-TEST performance tests

Avast: AI-powered Avast Assistant for scam detection in messages; Webcam Shield blocks unauthorized camera access (paid); Ransomware Shield protects files from unauthorized encryption; Network Inspector detects Wi-Fi intruders and router vulnerabilities; Avast is part of Gen Digital (same parent as Norton/AVG) — shared threat intelligence

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