Head-to-head · Anti Malware Software
F-Secure Internet Security vs IObit Malware Fighter
F-Secure Internet Security leads on 0 checks, IObit Malware Fighter on 1, and 1 is even. Who comes out ahead on the 2 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.
Our verdict
- Highest scoreF-Secure Internet Security · 9.0/10
- Free planonly IObit Malware Fighter
- Free trialonly F-Secure Internet Security
F-Secure Internet Security scores higher on our rubric for anti malware software: 9.0 against 8.9 out of 10; our editors rank them #2 and #3.
IObit Malware Fighter offers free plan; F-Secure Internet Security doesn't.
F-Secure Internet Security is the better fit for families protecting devices across major platforms. IObit Malware Fighter is the better fit for windows users seeking a capable free tier.
- F-Secure Internet Security fits best
Families protecting devices across major platforms
- IObit Malware Fighter fits best
Windows users seeking a capable free tier
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Side by side
| Feature | F-Secure Internet Security 9.0/10 Visit ↗ | IObit Malware Fighter 8.9/10 Visit ↗ |
|---|---|---|
| At a glance | ||
| Editor score | 9.0 | 8.9 |
| Ranking | #2 in Anti Malware Software | #3 in Anti Malware Software |
| Best for | Families protecting devices across major platforms | Windows users seeking a capable free tier |
| Pricing model | Paid | Free plan + paid |
| Starting price | — | — |
| Free plan | — | ✓ (best) |
| Free trial | 30 days | — |
| Deployment | Desktop, Mobile | Desktop |
| Platforms | Windows, macOS, iOS, Android | Windows |
| Support | Docs, Live chat, Email | Email, Community, Docs |
| Built for | Solo, Small business | Solo, Small business, Mid-market |
| Features F-Secure Internet Security 1/4 · IObit Malware Fighter 1/4 | ||
| Real-time protection | Not checked yet | Not checked yet |
| Ransomware protection | ✓ | ✓ |
| Scheduled scans | Not checked yet | Not checked yet |
| Behavior monitoring | Not checked yet | Not checked yet |
| Specs | ||
| Maximum devices | Not checked yet | Not checked yet |
| Platform coverage | Not checked yet | Not checked yet |
| Our review | ||
| Pros |
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| Cons |
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| Our verdict | F-Secure Internet Security is consumer security software for people who want protection across computers, phones, and tablets. It supports Windows, macOS, iOS, and Android, with subscriptions for one, three, or five devices. Its protection… Read the review → |
IObit Malware Fighter is Windows antivirus and anti-malware software for home and business users who want real-time protection and scanning on a desktop. Its Free plan covers real-time malware protection using the IObit malware database,… Read the review → |
Strengths and trade-offs
F-Secure Internet Security — where it wins
- Covers malware, ransomware, spyware, and infected email attachments
- Adds browsing, banking, scam, and unsafe Wi-Fi protections
- Remote management is available through a My F-Secure account
Where it doesn't
- No time-unlimited free plan
- Annual pricing starts at €49.99 for one device
- Two-year options require paying a higher upfront price
IObit Malware Fighter — where it wins
- Free plan includes real-time malware protection and unsafe-link blocking
- Pro adds ransomware defense, phishing blocking and Bitdefender protection
- Includes SafeBox, camera and USB controls, and customizable scans
Where it doesn't
- Available only for Windows desktop
- Bitdefender real-time protection is limited to Pro
- Pro device options stop at three PCs
- F-Secure Internet Security9.0/10 · 30-day trial
Broad protection across four platforms, sold in paid plans for one to five devices.
Visit F-SecureFull verdict → - IObit Malware Fighter8.9/10 · Free plan
A Windows-focused free tier, with Bitdefender protection reserved for Pro.
Visit IObitFull verdict →
More comparisons
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- F-Secure Internet Security vs PC Matic
- F-Secure Internet Security vs 360 Total Security
- F-Secure Internet Security vs Seqrite Endpoint Protection Cloud
- IObit Malware Fighter vs Dr.Web KATANA
All anti malware software comparisons → · Full ranking →
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
Last updated · How we research and update