Review · Software & apps
Avast One review
Avast's free and paid security app for PC, Mac, Android and iOS, with scam detection and a firewall.
By the HearSmart research desk · Updated November 8, 2026
- Performance (40%)
- 8.3
- Ease of use (25%)
- 8.2
- Value (35%)
- 8.5
Avast One is the free antivirus to try first if you do not want Microsoft's built-in option. The free version blocks malware in real time, and paid Premium Security adds scam detection through Avast Assistant, an extra ransomware layer, a Wi-Fi security scan, a sandbox for testing suspicious apps, an advanced firewall, webcam protection, a file shredder and automatic app updates. Paid plans can cover up to 10 devices across PC, Mac, Android and iOS. On the US page we checked, both Premium Security and Ultimate cost $49.08 for the first year, with Ultimate adding Cleanup Premium, Premium VPN and AntiTrack, so Ultimate is the better buy for the first year. Watch the renewal: Premium Security renews at $77.99 a year and Ultimate at $109.99. Expect prompts to try the extra tools. A 30-day money-back guarantee applies to paid plans.
Who it is for
People who want a capable free antivirus first, with the option to upgrade later.
Price
Free plan; Premium Security $49.08 for the first year (renews at $77.99 a year); Ultimate $49.08 for the first year (renews at $109.99 a year); 30-day money-back guarantee.
$77.99 $49.08/first yr
Quoted from the vendor pricing page on November 8, 2026.
Key features
- Real-time blocking of viruses, ransomware and other malware
- Avast Assistant to help detect online scams
- Wi-Fi security scan and an extra ransomware layer
- Sandbox for suspicious apps, advanced firewall and webcam protection
- Ultimate adds Cleanup Premium, Premium VPN and AntiTrack
Strengths and weaknesses
- Strength: Free antivirus download
- Strength: Paid plans cover up to 10 devices across PC, Mac, Android and iOS
- Strength: Ultimate bundles VPN and cleanup tools at the same first-year price
- Weakness: First-year price renews at $77.99 or $109.99
- Weakness: Several advanced tools are Windows features
- Weakness: Upsells to Cleanup and VPN
Key facts
- Free plan: Yes
- Platforms: PC, Mac, Android, iPhone and iPad
- Devices: Up to 10 on paid plans
- Renewal: $77.99 Premium Security, $109.99 Ultimate
- Refund window: 30 days
Where it ranks
Avast One is No. 6 in our Best Antivirus Software verdict.
Alternatives we scored
Visit avast.com · Questions or corrections: editorial@hearsmart.org