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 entryAvast
$0/mo entrySources — 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