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Cybersecurity · head to head

authentik vs Bitdefender Total Security

authentik logo

authentik

Cybersecurity

Open-source identity provider with flexible authentication flows

From
Free
Rated
-
Full reviewWebsite
Bitdefender Total Security logo

Bitdefender Total Security

Cybersecurity

The world's #1 rated antivirus

From
$19.99/year
Rated
-
Full reviewWebsite

The short version

  • Only authentik has a free tier, so it costs nothing to try first.
  • Each has a real cost: authentik smaller project than Keycloak, with a correspondingly smaller community and fewer integration guides; Bitdefender Total Security vPN limited to 200MB per day, insufficient for streaming video or extended browsing sessions
  • They diverge on capability: authentik covers Configurable flows, Bitdefender Total Security covers Advanced threat defense.

Where they differ

Only the attributes on which authentik and Bitdefender Total Security actually diverge.

Attributes where authentik and Bitdefender Total Security differ
AttributeauthentikBitdefender Total Security
Starting priceFree$19.99/year
Pricing modelOpen-source core with a paid enterprise tierUnknown
Free tierYesNo
PlatformsDocker, Kubernetes, Linux, Self-hostedWindows, macOS, iOS, Android
FoundedUnknown2001

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 authentik

  • Configurable flows
  • Protocol support
  • Application proxy
  • Modern admin interface

Only in Bitdefender Total Security

  • Advanced threat defense
  • Multi-layer ransomware protection
  • Real-time data protection
  • Network threat prevention
  • VPN
  • Parental advisor
  • Anti-tracker
  • Microphone monitor

What people use each for

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

authentik

  • Self-hosted SSO across internal services without commercial identity pricingnot Bitdefender Total Security
  • Putting authentication in front of applications that have none, via the proxynot Bitdefender Total Security
  • Teams who tried Keycloak and wanted something less heavynot Bitdefender Total Security

Bitdefender Total Security

  • Antivirusnot authentik
  • Internet Securitynot authentik
  • Endpoint Protectionnot authentik

Where each one falls short

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

authentik

  • Smaller project than Keycloak, with a correspondingly smaller community and fewer integration guides
  • The flow model is flexible but conceptually unfamiliar, and simple setups can feel over-abstracted
  • Enterprise support and some governance features sit behind the paid tier
  • Self-hosted identity is still yours to secure, patch and keep available

Bitdefender Total Security

  • VPN limited to 200MB per day, insufficient for streaming video or extended browsing sessions
  • Limited features on Apple devices with iOS version lacking scheduled scans, firewall, file shredder, and other tools
  • Failed to detect 10% of virus samples during in-house testing, falling short of perfect detection rates
  • Auto-renewal billing issues with complaints about unauthorized recurring charges and difficulties with refunds
  • Device optimization tools less extensive than competitors, lacking game booster, driver updater, startup manager, and battery usage manager

Pricing, plan by plan

authentik

Free
  • Open sourceFree
    • Full identity provider
    • All protocols
    • Community support

Bitdefender Total Security

$19.99/year

No published plan breakdown. See the Bitdefender Total Security review.

Which should you pick?

Choose authentik if

  • You need configurable flows.
  • You want to start without paying.
  • You work on Docker, Kubernetes, Linux, Self-hosted.
  • You also want protocol support.
authentik review

Choose Bitdefender Total Security if

  • You need advanced threat defense.
  • You work on Windows, macOS, iOS, Android.
  • You also want multi-layer ransomware protection.
Bitdefender Total Security review

Questions people ask

Is authentik or Bitdefender Total Security better?
Neither clearly leads. authentik starts at Free and Bitdefender Total Security at $19.99/year, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, authentik or Bitdefender Total Security?
authentik has a free tier; the other does not. Paid plans start at Free for authentik and $19.99/year for Bitdefender Total Security.
Does authentik or Bitdefender Total Security run on more platforms?
authentik runs on Docker, Kubernetes, Linux, Self-hosted. Bitdefender Total Security runs on Windows, macOS, iOS, Android.
Can I use authentik for free?
Yes. authentik has a free tier, so you can try it without paying. Bitdefender Total Security starts at $19.99/year.
What is authentik best used for?
authentik is most often used for self-hosted sso across internal services without commercial identity pricing, putting authentication in front of applications that have none, via the proxy, teams who tried keycloak and wanted something less heavy. Of those, self-hosted sso across internal services without commercial identity pricing and putting authentication in front of applications that have none, via the proxy are not what Bitdefender Total Security is typically brought in for.
What can authentik do that Bitdefender Total Security cannot?
authentik covers Configurable flows, Protocol support, Application proxy, Modern admin interface. Bitdefender Total Security covers Advanced threat defense, Multi-layer ransomware protection, Real-time data protection, Network threat prevention.

Answered from the vendors’ own pages

authentik: Is authentik free?

The open-source edition is free and complete for most use. An enterprise tier adds support and additional features.

Bitdefender Total Security: What are Bitdefender's main features?

Total Security includes real-time antivirus, anti-phishing, anti-ransomware, firewall, secure VPN (limited), password manager, file shredder, and anti-tracker. Additional features include parental controls, advanced threat defense, privacy firewall, and webcam/microphone protection.

authentik: authentik or Keycloak?

authentik is generally reported as easier to run and administer; Keycloak is more established with a larger community and Red Hat behind it.

Bitdefender Total Security: What did Bitdefender score on AV-TEST?

Bitdefender scored 6/6 across protection, performance, and usability in the January-February 2026 AV-TEST evaluation, and AV-Comparatives named it Product of the Year with a 99.98% detection rate.

authentik: Can authentik protect apps with no login of their own?

Yes. Its application proxy places authentication in front of services that have no built-in authentication.

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