Comodo Internet Security review (2026): is the free plan enough?
Windows antivirus and firewall that sandboxes unknown files
Black Friday: is there a Comodo Internet Security sale?
Comodo Internet Security report card
Good · out of 4.0 · graded Nov 12, 2026
Best for free Windows antivirus with a firewall
Comodo offers a free Internet Security edition for Windows and a $29.99-a-year Complete one. The consumer pages mention Windows 10, 8 and 7 and look dated, and the homepage leads with business products.
Who Comodo Internet Security is for
- Fits if you want a free antivirus and firewall on a Windows PC
- Works for a home user who wants a sandbox for unknown files
Who Comodo Internet Security is not for
- Skip it if you use a Mac, phone or Linux, as it's Windows only
- Watch out: the pages list Windows 10, 8 and 7 and look dated, so check current support before buying
- Watch out: the homepage leads with website and enterprise products, with consumer security further down
- Watch out: the virus-free guarantee covers up to $500 in repair costs for US customers only
Why Comodo Internet Security gets a 2.6
Five grades, each with its reason. The GPA is their average: an A is 4 points, an F is none.
- AValue for moneyA free edition exists, and Complete is $29.99 a year, about $2.50 a month, against $4.50 for the middle of antivirus tools.
- BFree plan and trialA free Internet Security edition for Windows with no time limit on record, though Complete adds more.
- CFeaturesAntivirus and spyware scanning, an auto sandbox, a firewall, secure shopping and online backup. The pages look dated and cite Windows 10, 8 and 7.
- BEase of useNo store rating on record. You install it and it runs, with nothing to set up.
- DPlatforms and integrationsWindows only, with no Mac, phone or Linux version listed.
What these grades rest on. Graded from this listing, whose facts were read from Comodo's own pages on 12 November 2026. Not based on using the product, and shorter than our full reviews. How we review and grade.
Make Comodo Internet Security? Put this grade on your site
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<a href="https://toolgpa.com/tools/comodo-antivirus#review"><img src="https://toolgpa.com/badge/comodo-antivirus.svg" alt="Comodo Internet Security: 2.6 GPA on ToolGPA" width="196" height="56"></a>Where Comodo Internet Security stands among antivirus apps
Comodo Internet Security's GPA of 2.6 is higher than 13 of the 25 other antivirus apps we grade, and level with 5.
It stands best on value for money (A, above 24 of 25) and worst on platforms and integrations (D, above 0).
Each grade against the category
Every bar is all 26 antivirus apps we grade, cut by the letter each got. Comodo Internet Security’s own letter is outlined.
- AValue for moneyAbove 24 of 25, level with 1
- BFree plan and trialAbove 18 of 25, level with 5
- CFeaturesAbove 1 of 25, level with 7
- BEase of useAbove 4 of 25, level with 19
- DPlatforms and integrationsAbove 0 of 25, level with 2
Keep Comodo Internet Security, or make your own?
Keep it
To replace Comodo Internet Security you would be making an engine that recognises new malware as it appears. That is not a weekend's work, with an AI app builder or without one.
What you could not
- An engine that recognises new malware as it appears.
- Files kept in step across devices without losing one.
- A real app for Windows. Something home-made would be a web page.
What this rests on. Comodo Internet Security’s listing: what it does, where it runs, what it plugs into and what it costs. It is a judgement about the kind of software this is. We have not built a replacement for it, and making your own means looking after it too. How we decide, and every tool’s verdict.
What is Comodo Internet Security?
Comodo Internet Security is a consumer security suite for Windows that combines an antivirus scanner, a firewall and an auto sandbox that runs unknown files in an isolated environment. A free edition and a paid Complete edition are listed. Comodo's main site now leads with website security and business products, and its consumer pages look older than the rest of the site.
Worth knowing
- The consumer pages list compatibility with Windows 10, 8 and 7 and appear dated; check current support before buying.
- Comodo's homepage lists Antivirus, Firewall and Internet Security under Consumer Security but leads with website and enterprise products.
- The page says the virus-free guarantee covers up to $500 in repair costs for US customers.
Key features
- Antivirus and spyware scanning
- Scans for existing malware and spyware in the registry and on disks.
- Auto sandbox
- Unknown files can only run in a virtual environment, so they cannot change Windows or user data.
- Firewall
- A two-way firewall with a memory firewall to block software that tries to hijack other processes.
- Secure shopping
- Runs the browser inside a secure container for banking and shopping.
- Online backup
- Complete includes 50GB of backup space, with upgrades available.
Comodo Internet Security pricing
As of Nov 12, 2026, Comodo Internet Security has a free plan, and paid plans start at Free edition; paid Complete edition $29.99 per year for 1 PC.
- Starts at
- Free edition; paid Complete edition $29.99 per year for 1 PC
- Free plan
- A free Comodo Internet Security edition is offered for Windows.
- Free trial
- None listed
| Plan | Price | What you get |
|---|---|---|
| Free Internet Security | $0 | The free Windows edition of Comodo Internet Security. |
| Internet Security Complete | $29.99per year for 1 PC | Antivirus, firewall, auto sandbox, 50GB of online backup and a virus-free guarantee. Three licenses cost $39.99 a year. |
Read from comodo.com on Nov 12, 2026. Prices change, so confirm with Comodo Internet Security before you buy.
Comodo Internet Security alternatives
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Common questions
Does Comodo Internet Security have an Android app?
No Android app was listed when its pages were read on Nov 12, 2026. Comodo Internet Security is listed for Windows.
Does Comodo Internet Security have an iPhone app?
No iPhone app was listed when its pages were read on Nov 12, 2026. Comodo Internet Security is listed for Windows.
Is Comodo Internet Security open source?
Comodo Internet Security is not described as open source on its own site, as read on Nov 12, 2026.
Sources for this page
The prices, plans, platforms and features above were read from these pages on Nov 12, 2026.