Suggestions appear as you type. Use the up and down arrows to choose one and Enter to open it.

This page's audience our own tag's counts — open to see them
–Visits
–Page views
–Clicks to vendors
–Time on page
–Reading now
Clicks to vendors, by tool
  • –
Top countries
  • –
Devices
  • –

– · visits, page views and clicks counted by our own tag, which counts more than our checked analytics; every figure rounded down · how we count

Head-to-head · Anti Malware Software

F-Secure Internet Security vs Dr.Web KATANA

  • Updated Oct 2026
  • Both researched from official sources
  • 2 checks side by side
Higher score F-Secure Internet Security #2 in Anti Malware Software 9.0/10 30-day trial Free trial✓ 1 of 4 features Visit F-Secure
Dr.Web KATANA #4 in Anti Malware Software 8.7/10 30-day trial Free trial✓ 1 of 4 features Visit Dr.Web

F-Secure Internet Security leads on 0 checks, Dr.Web KATANA on 0, and 2 are 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 trialboth

F-Secure Internet Security scores higher on our rubric for anti malware software: 9.0 against 8.7 out of 10; our editors rank them #2 and #4.

F-Secure Internet Security is the better fit for families protecting devices across major platforms. Dr.Web KATANA is the better fit for low-cost behavioral protection for one Windows PC.

  • F-Secure Internet Security fits best

    Families protecting devices across major platforms

  • Dr.Web KATANA fits best

    Low-cost behavioral protection for one Windows PC

Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.

Side by side

Feature F-Secure Internet Security 9.0/10 Visit ↗ Dr.Web KATANA 8.7/10 Visit ↗
At a glance
Editor score 9.0 8.7
Ranking #2 in Anti Malware Software #4 in Anti Malware Software
Best for Families protecting devices across major platforms Low-cost behavioral protection for one Windows PC
Pricing model Paid Paid
Starting price — $9.30/device/yr
Free plan — —
Free trial 30 days 30 days
Free trial length 30 days · no card needed 30 days
Deployment Desktop, Mobile Desktop
Platforms Windows, macOS, iOS, Android Windows
Support Docs, Live chat, Email Phone, Tickets, Community, Docs · 24/7
Built for Solo, Small business Solo, Small business, Enterprise
Features F-Secure Internet Security 1/4 · Dr.Web KATANA 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
  • 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
  • Uses real-time behavioral analysis and cloud reputation data
  • Detects ransomware activity and offers exploit and zero-day protection
  • Can operate alongside third-party antivirus software
Cons
  • No time-unlimited free plan
  • Annual pricing starts at €49.99 for one device
  • Two-year options require paying a higher upfront price
  • Supports Windows only
  • Each listed plan covers one PC
  • Focused on preventive antivirus protection rather than a broader security suite
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 →

Dr.Web KATANA is a Windows desktop antivirus designed as an additional layer for personal computers, including laptops, netbooks and tablets. It is aimed at buyers who want preventive protection based on behavior and cloud reputation…

Read the review →
  1. F-Secure Internet SecurityAnti Malware Software 9.030-day trial
  2. Dr.Web KATANAAnti Malware Software 8.730-day trial

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

  • Dr.Web KATANA — where it wins

    • Uses real-time behavioral analysis and cloud reputation data
    • Detects ransomware activity and offers exploit and zero-day protection
    • Can operate alongside third-party antivirus software

    Where it doesn't

    • Supports Windows only
    • Each listed plan covers one PC
    • Focused on preventive antivirus protection rather than a broader security suite
  • 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 →
  • Dr.Web KATANA8.7/10 · 30-day trial

    A focused Windows protection layer with behavioral detection and a low annual per-device price.

    Visit Dr.WebFull verdict →

More comparisons

All anti malware software comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update