Avast One
8.9#1 in antivirus softwareFree planFree planAndroidiOSExtensionmacOS
VisitAvast One vs Protectstar Antivirus AI
Protectstar Antivirus AI
7.5#27 in antivirus softwareFrom €8.95 a yearFree planAndroidAPI
VisitWhat both publish
| Fact | Avast One | Protectstar Antivirus AI |
|---|---|---|
| Device limit | 30 | 1 |
| Founded | 1988 | LinkedIn states that Chris Bohn founded Protectstar in 2004. |
| Free plan | Yes | Yes |
| Headquarters | Prague, Czech Republic | Sarasota, Florida, USA |
| Protection scope | complete security | antivirus |
| Ransomware protection | The free tier includes ransomware protection that restricts untrusted apps from changing protected folders. | Yes |
| Rating on Google Play | 4.6 out of 5 from 7.28M reviews | 4.3 out of 5 from 29,500 reviews. |
| Rating on Trustpilot | 4.3 out of 5 from 46,510 reviews | 2.8 out of 5 from 12 reviews. |
| Supported platforms | Windows,macOS,Android,iOS | Android |
| System requirements | The product requires internet access for updates; Windows support covers Windows 7 through 11, while Mac requires macOS 10.14 or later, Android requires 9.0 or later and iOS requires 15 or later. | The Android app requires Android 8.0 or later, is about 28 MB and typically uses under 80 MB of RAM. |
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
Protectstar Antivirus AI plans
- PRO€8.95 a year
- GOV€13.95 a year
- FREEFree
Pick Avast One if…
You want what its maker publishes above — check its page for the details.
Pick Protectstar Antivirus AI if…
It suits Android users seeking antivirus protection, including ransomware protection and manual scans on a free plan. The listed licenses cover one device.