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Security & Cybersecurity · head to head

Avast One vs Cisco Duo

Avast One logo

Avast One

Security & Cybersecurity

All-in-one protection for your digital life

From
Free
Rated
-
Full reviewWebsite
Cisco Duo logo

Cisco Duo

Security & Cybersecurity

Trusted access for all users, all devices

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Avast One ransomware and Wi-Fi vulnerability protection only on paid plans; Cisco Duo free tier caps at 10 users; every paid tier requires a minimum of 10 users

Where they differ

Only the attributes on which Avast One and Cisco Duo actually diverge.

Attributes where Avast One and Cisco Duo differ
AttributeAvast OneCisco Duo
Pricing modelUnknownfreemium
PlatformsWindows, macOS, iOS, AndroidWeb
Founded1988Unknown

Identical on both: starting price (Free), free tier (Yes), user rating (Not yet rated), category (Security & Cybersecurity).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Avast One

  • Antivirus
  • Firewall
  • VPN
  • Data breach monitoring
  • Email Guardian
  • Webcam Shield
  • Ransomware Shield
  • Performance optimization

Only in Cisco Duo

Nothing recorded that Avast One does not also cover.

What people use each for

The jobs each tool is most often brought in to do.

Avast One

  • Antivirusnot Cisco Duo
  • Internet Securitynot Cisco Duo
  • Privacy Toolsnot Cisco Duo

Cisco Duo

No use cases recorded yet. See the Cisco Duo review.

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Avast One

  • Ransomware and Wi-Fi vulnerability protection only on paid plans
  • Free plan VPN is limited, no data breakthrough monitoring
  • Rebuilt app in May 2026 may have stability issues

Cisco Duo

  • Free tier caps at 10 users; every paid tier requires a minimum of 10 users
  • Licenses cannot be bought individually above the free tier: under 100 users they are sold in increments of 10, and over 100 users in increments of 25
  • Duo Premier, the top tier with the most adaptive access controls, costs $9 per user per month on top of the per-increment purchase requirement

Pricing, plan by plan

Avast One

Free
  • FreeFree
    • Antivirus
    • Limited VPN
    • Privacy tools
  • Silver$2.99/month
    • Enhanced antivirus
    • VPN
    • Device cleanup
  • Premium$4.19/month
    • Full antivirus
    • VPN with 55 servers
    • Password manager
  • Premium Plus$11.67/month
    • All Premium features
    • 30 devices covered

Cisco Duo

Free

No published plan breakdown. See the Cisco Duo review.

Which should you pick?

Choose Avast One if

  • You need antivirus.
  • You want to start without paying.
  • You work on Windows, macOS, iOS, Android.
  • You also want firewall.
Avast One review

Choose Cisco Duo if

  • You want to start without paying.
Cisco Duo review

Questions people ask

Is Avast One or Cisco Duo better?
Neither clearly leads. Avast One starts at Free and Cisco Duo at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Avast One or Cisco Duo?
Avast One starts at Free and Cisco Duo at Free.
Does Avast One or Cisco Duo run on more platforms?
Avast One runs on Windows, macOS, iOS, Android. Cisco Duo runs on Web.
Can I use Avast One for free?
Both have a free tier, so you can try either at no cost before committing.
What is Avast One best used for?
Avast One is most often used for antivirus, internet security, privacy tools. Of those, antivirus and internet security are not what Cisco Duo is typically brought in for.
What can Avast One do that Cisco Duo cannot?
Avast One covers Antivirus, Firewall, VPN, Data breach monitoring.

Answered from the vendors’ own pages

Avast One: Is Avast One free?

Yes. Avast One offers a free tier with antivirus, VPN (limited), and privacy tools. Paid plans start at $2.99/month for Silver and $4.19/month for Premium covering up to 5 devices.

Source
Avast One: What does Avast One include?

Avast One provides antivirus, VPN, password manager, device cleanup, Wi-Fi security, data breach monitoring, and protection against AI-generated scams and deepfakes.

Source
Avast One: Does Avast One have ransomware protection?

Ransomware protection is available only on paid plans, not the free tier. Free users get antivirus and basic protection only.

Source
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