Avast One
8.9#1 in antivirus softwareFree planFree planAndroidiOSExtensionmacOS
VisitAvast One vs Windows Security
Windows Security
6.4#76 in antivirus softwareWindows
VisitWhat both publish
| Fact | Avast One | Windows Security |
|---|---|---|
| Founded | 1988 | 1975 |
| Free plan | Yes | Yes |
| Headquarters | Prague, Czech Republic | Redmond, Washington, United States |
| Protection scope | complete security | complete security |
| Ransomware protection | The free tier includes ransomware protection that restricts untrusted apps from changing protected folders. | Yes |
| Supported platforms | Windows,macOS,Android,iOS | Windows 10,Windows 11 |
Avast One plans
- BasicPriced on request
- Basic—
- Silver Device Protection module$2.99 a month
- Gold$6.99 a month
- Platinum$9.99 a month
- Free AntivirusFree
Windows Security plans
No prices published.
Pick Avast One if…
You want what its maker publishes above — check its page for the details.
Pick Windows Security if…
It suits Windows 10 and 11 users who want built-in antivirus, firewall, scanning, account, browser, and hardware-security controls. Organization-managed devices may have fewer available pages or features.