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Networking · head to head

Icinga vs Logto

Icinga logo

Icinga

Networking

Open source infrastructure monitoring, free at its core, with paid support and modules sold separately by Icinga GmbH

From
Free
Rated
-
Full reviewWebsite
Logto logo

Logto

Cybersecurity

Open-source identity and authentication infrastructure for apps and APIs

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Icinga the free core has no vendor SLA, so production incidents are supported through community channels unless a paid support subscription is purchased; Logto advanced features like RBAC, organizations, MFA, and enterprise SSO are billed as separate paid add-ons rather than included in Pro.
  • They diverge on capability: Icinga covers Forever Free core, Logto covers Prebuilt sign-in UI.
  • Prices and features above were last checked on 1 September 2026.

Where they differ

Only the attributes on which Icinga and Logto actually diverge.

Attributes where Icinga and Logto differ
AttributeIcingaLogto
Pricing modelOpen source core, with paid repository, module and support subscriptions sold separatelyfreemium
PlatformsLinux, Webweb, api
CategoryNetworkingCybersecurity

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

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 Icinga

  • Forever Free core
  • Clustering and HA
  • Icinga Web and API
  • Enterprise modules (paid)
  • Integration ecosystem

Only in Logto

  • Prebuilt sign-in UI
  • Social connectors
  • Role-based access control
  • Multi-factor authentication
  • Machine-to-machine apps
  • Audit logs

What people use each for

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

Icinga

  • An IT team wanting unlimited-scale open source monitoring with no per-host licence fee, running standard Linux distributionsnot Logto
  • An organisation on RHEL or SLES that wants officially packaged Icinga builds via the repository subscription rather than building from sourcenot Logto
  • A team wanting an SLA-backed vendor support relationship rather than relying on community forums for a production monitoring systemnot Logto
  • A company already invested in Prometheus and Grafana wanting to add host and service-level alerting from a compatible open source toolnot Logto

Logto

  • Adding sign-in to a new SaaS productnot Icinga
  • Implementing SSO for B2B customersnot Icinga
  • Securing internal APIs with M2M tokensnot Icinga
  • Adding RBAC and organizations to a multi-tenant appnot Icinga

Where each one falls short

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

Icinga

  • The free core has no vendor SLA, so production incidents are supported through community channels unless a paid support subscription is purchased
  • Repository access for enterprise Linux distributions like RHEL and SLES is not free, so organisations standardised on those distributions face a real recurring cost most open source monitoring buyers do not expect
  • Enterprise modules are gated behind a separate module subscription, so some functionality demonstrated in marketing material is not part of the free core
  • Self-hosting and operating Icinga requires real Linux and monitoring expertise that a commercial SaaS tool would otherwise absorb, so total cost of ownership includes staff time not captured in the licence price
  • Pricing for the paid subscriptions varies by geographic region and is not published as a single global rate card, complicating budgeting for multinational organisations
  • The web interface and configuration language, while capable, are less immediately polished than a fully commercial tool like PRTG, and initial setup takes longer to reach a usable state

Logto

  • Advanced features like RBAC, organizations, MFA, and enterprise SSO are billed as separate paid add-ons rather than included in Pro.
  • Enterprise pricing is not published and requires contacting sales.
  • Token-based billing can make cost forecasting harder than flat per-MAU pricing for high-traffic apps.

Pricing, plan by plan

Icinga

Free
  • IcingaFree
    • Unlimited hosts and services
    • Clustering and API
    • Community support
  • Support Subscription$undefined/year
    • Professional support (8x5 or 24/7)
    • Includes module and repository subscriptions

Logto

Free
  • FreeFree
    • Up to 50,000 MAU
    • 50K tokens included
    • 3 applications
  • Pro$24/month
    • Unlimited MAU and applications
    • 3 included API resources
    • Passkey sign-in

Which should you pick?

Choose Icinga if

  • You need forever free core.
  • You want to start without paying.
  • You work on Linux, Web.
  • You also want clustering and ha.
Icinga review

Choose Logto if

  • You need prebuilt sign-in ui.
  • You want to start without paying.
  • You work on web, api.
  • You also want social connectors.
Logto review

Questions people ask

Is Icinga or Logto better?
Neither clearly leads. Icinga starts at Free and Logto at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Icinga or Logto?
Icinga starts at Free and Logto at Free.
Does Icinga or Logto run on more platforms?
Icinga runs on Linux, Web. Logto runs on web, api.
Can I use Icinga for free?
Both have a free tier, so you can try either at no cost before committing.
What is Icinga best used for?
Icinga is most often used for an it team wanting unlimited-scale open source monitoring with no per-host licence fee, running standard linux distributions, an organisation on rhel or sles that wants officially packaged icinga builds via the repository subscription rather than building from source, a team wanting an sla-backed vendor support relationship rather than relying on community forums for a production monitoring system, a company already invested in prometheus and grafana wanting to add host and service-level alerting from a compatible open source tool. Of those, an it team wanting unlimited-scale open source monitoring with no per-host licence fee, running standard linux distributions and an organisation on rhel or sles that wants officially packaged icinga builds via the repository subscription rather than building from source are not what Logto is typically brought in for.
What can Icinga do that Logto cannot?
Icinga covers Forever Free core, Clustering and HA, Icinga Web and API, Enterprise modules (paid). Logto covers Prebuilt sign-in UI, Social connectors, Role-based access control, Multi-factor authentication.

Answered from the vendors’ own pages

Icinga: Is Icinga free to run in production?

Yes, the core platform has no licence fee and no limit on hosts or services monitored.

Logto: What does Logto cost?

Logto offers a Free plan at $0/month, a Pro plan starting at $24/month with 50K free tokens included, and a custom-priced Enterprise plan. Extra add-ons like RBAC or MFA are billed separately on Pro.

Source
Icinga: What do the paid subscriptions actually add?

A repository subscription provides packages for certain enterprise Linux distributions, a module subscription unlocks enterprise-only add-on modules, and a support subscription bundles both with professional support.

Logto: Is there a free plan, and what are its limits?

Yes. The Free plan supports up to 50,000 monthly active users, 3 total applications, 1 machine-to-machine app, 3 social connectors, 1 webhook, and 3-day audit log retention.

Source
Icinga: Is Icinga related to Nagios?

Yes, it originated as a fork of Nagios but has since diverged into an independently developed platform.

Logto: How is usage metered?

Logto uses token-based billing: only access tokens issued for authentication and authorization activity are counted, rather than charging purely per MAU.

Source
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