Best iolo System Shield Alternatives in 2026
Updated
20 apps from antivirus software ranked against iolo System Shield on the same published basis.
- 1iolo System Shield vs Avira Free Security
- 2iolo System Shield vs Avast Free Antivirus
- 3iolo System Shield vs Avira Free Antivirus
- 4iolo System Shield vs Comodo Internet Security
- 5iolo System Shield vs Bitdefender Total Security
- 6iolo System Shield vs Comodo Antivirus
- 7iolo System Shield vs ClamAV
- 8iolo System Shield vs Kaspersky Antivirus
- 9iolo System Shield vs AetherAV
- 10iolo System Shield vs Avast One
- 11iolo System Shield vs Bitdefender Antivirus Plus
- 12iolo System Shield vs Malwarebytes Premium
- 13iolo System Shield vs IObit Malware Fighter
- 14iolo System Shield vs ESET Mobile Security for Android
- 15iolo System Shield vs Kaspersky Plus Internet Security
- 16iolo System Shield vs AVG Internet Security
- 17iolo System Shield vs Norton 360
- 18iolo System Shield vs Microsoft Defender Antivirus
- 19iolo System Shield vs Bitdefender GravityZone Small Business Security
- 20iolo System Shield vs ESET HOME Security
iolo System Shield alternatives compared
| # | App | Score | Free plan | From | Runs on |
|---|---|---|---|---|---|
| 1 | Avira Free Security | 7.7 | Free plan | Free | Android, Browser, iOS, Mac, Windows |
| 2 | Avast Free Antivirus | 7.6 | Free plan | Free | Android, iOS, Mac, Windows |
| 3 | Avira Free Antivirus | 7.5 | Free plan | Free | Android, iOS, Mac, Windows |
| 4 | Comodo Internet Security | 7.3 | Free plan | Windows | |
| 5 | Bitdefender Total Security | 7.2 | $5/mo | Android, iOS, Mac, Windows | |
| 6 | Comodo Antivirus | 7.2 | Free plan | $2.50/mo | Windows |
| 7 | ClamAV | 7.2 | Free plan | Free | API, Linux, Mac, self-hosted, Windows |
| 8 | Kaspersky Antivirus | 7.1 | $4.58/mo | Android, iOS, Linux, Mac, Windows | |
| 9 | AetherAV | 7.1 | Free plan | Free | Linux, Mac, Windows |
| 10 | Avast One | 7.0 | Android, iOS, Mac, Windows | ||
| 11 | Bitdefender Antivirus Plus | 7.0 | No | $2.08/mo | Android, iOS, Mac, Windows |
| 12 | Malwarebytes Premium | 7.0 | Android, Browser, iOS, Mac, Windows | ||
| 13 | IObit Malware Fighter | 7.0 | Free plan | Free | Windows |
| 14 | ESET Mobile Security for Android | 6.9 | Free plan | Free | Android |
| 15 | Kaspersky Plus Internet Security | 6.8 | No | Android, iOS, Linux, Mac, Windows | |
| 16 | AVG Internet Security | 6.8 | No | $4.99/mo | Android, iOS, Mac, Windows |
| 17 | Norton 360 | 6.7 | No | $7.92/mo | Android, iOS, Mac, Windows |
| 18 | Microsoft Defender Antivirus | 6.7 | Windows | ||
| 19 | Bitdefender GravityZone Small Business Security | 6.6 | Linux, Mac, Windows | ||
| 20 | ESET HOME Security | 6.6 | Android, Mac, Windows |
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Questions about iolo System Shield alternatives
What is the best alternative to iolo System Shield?
Avira Free Security, number 1 in antivirus software with a score of 7.7 out of 10. The others here: Avast Free Antivirus, Avira Free Antivirus, Comodo Internet Security and 16 more.
What is the best free alternative to iolo System Shield?
Avira Free Security is the best-ranked alternative with a free plan. 9 of the 20 alternatives here publish a free plan on their own pricing pages.
How are these alternatives ranked?
Ranked free-and-open first: a usable free tier and open-source code, then the platforms it runs on and its documentation.