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Cybersecurity · head to head

Avast One vs KnowBe4

Avast One logo

Avast One

Cybersecurity

All-in-one protection for your digital life

From
Free
Rated
-
Full reviewWebsite
KnowBe4 logo

KnowBe4

Cybersecurity

World's largest security awareness training platform

From
$1/month
Rated
-
Full reviewWebsite

The short version

  • Only Avast One has a free tier, so it costs nothing to try first.
  • Each has a real cost: Avast One ransomware and Wi-Fi vulnerability protection only on paid plans; KnowBe4 published prices assume a three year term, so the quoted per seat rate depends on a long commitment
  • They diverge on capability: Avast One covers Antivirus, KnowBe4 covers Security awareness training.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Avast One and KnowBe4 actually diverge.

Attributes where Avast One and KnowBe4 differ
AttributeAvast OneKnowBe4
Starting priceFree$1/month
Pricing modelUnknownsubscription
Free tierYesNo
PlatformsWindows, macOS, iOS, AndroidWeb, Mobile, Email
Founded19882010

Identical on both: user rating (Not yet rated), category (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 KnowBe4

  • Security awareness training
  • Phishing simulation
  • Risk assessments
  • Compliance training
  • Incident reporting
  • API access
  • Custom policies
  • Behavior analytics

Both cover

  • Cloud deployment

What people use each for

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

Avast One

  • Antivirusnot KnowBe4
  • Internet Securitynot KnowBe4
  • Privacy Toolsnot KnowBe4

KnowBe4

  • Security awareness training and simulated phishing for staffnot Avast One
  • Tracking employee susceptibility to phishing over timenot Avast One

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

KnowBe4

  • Published prices assume a three year term, so the quoted per seat rate depends on a long commitment
  • Pricing is banded by seat count, and the lowest band of 25 to 50 seats pays the highest rate
  • Accounts above 1,000 seats have no published price and require a custom quote
  • Third party integrations, Compliance Plus and PhishER Plus are all separately priced per seat add ons
  • The Foundation tier carries 200 training modules against more than 1,000 on Advanced, so content volume is the main gate

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

KnowBe4

$1/month
  • Basic$1/month
    • Per user
    • Training modules
    • Phishing templates
  • Advanced$2/month
    • All Basic features
    • Advanced phishing
    • Risk assessments
  • Pro$3/month
    • All Advanced features
    • API access
    • Custom content

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 KnowBe4 if

  • You need security awareness training.
  • You work on Web, Mobile, Email.
  • You also want phishing simulation.
KnowBe4 review

Questions people ask

Is Avast One or KnowBe4 better?
Neither clearly leads. Avast One starts at Free and KnowBe4 at $1/month, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Avast One or KnowBe4?
Avast One has a free tier; the other does not. Paid plans start at Free for Avast One and $1/month for KnowBe4.
Does Avast One or KnowBe4 run on more platforms?
Avast One runs on Windows, macOS, iOS, Android. KnowBe4 runs on Web, Mobile, Email.
Can I use Avast One for free?
Yes. Avast One has a free tier, so you can try it without paying. KnowBe4 starts at $1/month.
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 KnowBe4 is typically brought in for.
What can Avast One do that KnowBe4 cannot?
Avast One covers Antivirus, Firewall, VPN, Data breach monitoring. KnowBe4 covers Security awareness training, Phishing simulation, Risk assessments, Compliance training. Both handle Cloud deployment.

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
KnowBe4: What does KnowBe4 cost per employee?

KnowBe4 charges per seat per month on a subscription basis. For 51-100 employees, SAT Foundation costs $2.13/month per seat and SAT Advanced costs $3.40/month per seat. Prices decrease with larger employee counts.

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
KnowBe4: Does KnowBe4 offer a free trial?

KnowBe4 does not offer a full free version, but free tools are available separately including assessments and simulators.

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
KnowBe4: Are there add-on costs beyond the base plan?

Yes, optional add-ons include Third-Party Integrations ($1.10-$1.20/seat/month), Compliance Plus ($0.82-$0.93/seat/month), PhishER Plus ($1.15-$1.50/seat/month), and Student Edition ($0.17/seat/month).

Source
KnowBe4: What currencies does KnowBe4 accept?

KnowBe4 accepts pricing in USD, AUD, BRL, CAD, EUR, GBP, SGD, and ZAR.

Source
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