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Software · head to head

Avast One vs Cal.com

Avast One logo

Avast One

Software

All-in-one protection for your digital life

From
Free
Rated
-
Full reviewWebsite
Cal.com logo

Cal.com

Software

Scheduling infrastructure for everyone

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; Cal.com free plan limited to single user only
  • They diverge on capability: Avast One covers Antivirus, Cal.com covers Custom booking pages.

Where they differ

Only the attributes on which Avast One and Cal.com actually diverge.

Attributes where Avast One and Cal.com differ
AttributeAvast OneCal.com
Pricing modelUnknownfreemium
PlatformsWindows, macOS, iOS, AndroidWeb, Mobile app, Browser extension
Founded19882021

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

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 Cal.com

  • Custom booking pages
  • Team scheduling
  • Collective scheduling
  • Routing forms
  • Webhooks
  • Google Calendar
  • Outlook
  • Zoom

Both cover

  • Web support

What people use each for

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

Avast One

  • Antivirusnot Cal.com
  • Internet Securitynot Cal.com
  • Privacy Toolsnot Cal.com

Cal.com

  • Schedule meetings and manage availabilitynot Avast One
  • Accept payments via Stripe and PayPalnot Avast One
  • Integrate with Salesforce and HubSpotnot 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

Cal.com

  • Free plan limited to single user only
  • Free plan restricted to 1 user account
  • Teams plan requires yearly billing at $12/user/month
  • Organizations plan requires yearly billing at $28/user/month
  • Free plan lacks team collaboration features

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

Cal.com

Free

No published plan breakdown. See the Cal.com 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 Cal.com if

  • You need custom booking pages.
  • You want to start without paying.
  • You work on Web, Mobile app, Browser extension.
  • You also want team scheduling.
Cal.com review

Questions people ask

Is Avast One or Cal.com better?
Neither clearly leads. Avast One starts at Free and Cal.com at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Avast One or Cal.com?
Avast One starts at Free and Cal.com at Free.
Does Avast One or Cal.com run on more platforms?
Avast One runs on Windows, macOS, iOS, Android. Cal.com runs on Web, Mobile app, Browser extension.
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 Cal.com is typically brought in for.
What can Avast One do that Cal.com cannot?
Avast One covers Antivirus, Firewall, VPN, Data breach monitoring. Cal.com covers Custom booking pages, Team scheduling, Collective scheduling, Routing forms. Both handle Web support.

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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Related pages

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