Technology · head to head
Checkmk vs Cortex
Checkmk
Technology
Comprehensive IT monitoring, open and flexible
- From
- Free
- Free plan
- Yes
Cortex
Developer Tools
Internal developer portal that scores service ownership and maturity rather than just cataloguing services
- From
- On request
- Free plan
- No
The short version
- Only Checkmk has a free tier, so it costs nothing to try first.
- Each has a real cost: Checkmk pricing calculated by service count, not hosts (approximately 30 services per host on average); Cortex pricing is quote only, so a platform team cannot build a business case or compare against the true cost of self-hosted Backstage without entering a sales cycle first.
- Prices and features above were last checked on 31 August 2026.
Where they differ
Only the attributes on which Checkmk and Cortex actually diverge.
Identical on both: 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 Checkmk
Nothing recorded that Cortex does not also cover.
Only in Cortex
- Service catalogue
- Scorecards
- Initiatives
- Self-service templates
- Query language
- Eng intelligence
- Integrations layer
- On-call and ownership mapping
What people use each for
The jobs each tool is most often brought in to do.
Checkmk
- Infrastructure monitoringnot Cortex
- System observabilitynot Cortex
- Enterprise compliance monitoringnot Cortex
Cortex
- A platform team that needs to prove to leadership how far a Kubernetes or framework migration has actually progressed across hundreds of servicesnot Checkmk
- An organisation where ownership of production services is genuinely unknown after reorganisations or acquisitionsnot Checkmk
- Enforcing production readiness standards on new services at creation time rather than at incident reviewnot Checkmk
- Replacing a self-hosted Backstage that is consuming a full-time engineer or two just to stay upgradednot Checkmk
Where each one falls short
Documented limitations, not opinions. Every one is a constraint you would hit in normal use.
Checkmk
- Pricing calculated by service count, not hosts (approximately 30 services per host on average)
- Professional support limited to 8-10 hours per week on base plans
- Synthetic monitoring is separate add-on with per-test pricing
Cortex
- Pricing is quote only, so a platform team cannot build a business case or compare against the true cost of self-hosted Backstage without entering a sales cycle first.
- The catalogue is only as accurate as the metadata you supply, so an organisation with inconsistent repository conventions spends its first quarter cleaning data before any scorecard means anything.
- Scorecards create political friction: publishing a per-team grade turns an engineering standard into a performance metric, and teams will game the rules rather than fix the underlying issue.
- It is closed source and hosted, so organisations with strict data residency or air-gap requirements have limited options compared with running Backstage themselves.
- Value scales with organisation size, so a company with fifty engineers and thirty services will find the catalogue tells them nothing they did not already know while still paying an enterprise contract.
Pricing, plan by plan
Checkmk
Free- Community (Self-Hosted)Free
- No cost, forever
- Up to ~100 hosts
- Basic infrastructure monitoring
- Pro (Self-Hosted)$190/month
- Advanced analytics
- Reporting
- Distributed monitoring
- Ultimate (Self-Hosted)$275/month
- Full-stack observability
- Advanced security compliance
- 10 hours x 5 days professional support (upgradable to 24/7)
- CloudAI (SaaS)$240/month
- Fully managed cloud hosting
- 99.5% uptime SLA
- Supports up to 50000 services
Cortex
On request- Cortex$undefined/year
- Service catalogue and ownership mapping
- Scorecards and initiatives
- Self-service templates
Which should you pick?
Choose Cortex if
- You need service catalogue.
- You work on Web, API.
- You also want scorecards.
Questions people ask
- Is Checkmk or Cortex better?
- Neither clearly leads. Checkmk starts at Free and Cortex at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
- Which is cheaper, Checkmk or Cortex?
- Checkmk has a free tier; the other does not. Paid plans start at Free for Checkmk and On request for Cortex.
- Does Checkmk or Cortex run on more platforms?
- Checkmk runs on Web. Cortex runs on Web, API.
- Can I use Checkmk for free?
- Yes. Checkmk has a free tier, so you can try it without paying. Cortex starts at On request.
- What is Checkmk best used for?
- Checkmk is most often used for infrastructure monitoring, system observability, enterprise compliance monitoring. Of those, infrastructure monitoring and system observability are not what Cortex is typically brought in for.
- What can Checkmk do that Cortex cannot?
- Cortex covers Service catalogue, Scorecards, Initiatives, Self-service templates.
Answered from the vendors’ own pages
Checkmk: Is there a free version of Checkmk?
Yes, Checkmk Community edition is free forever and supports up to approximately 100 hosts for basic infrastructure monitoring with no cost.
SourceCortex: How is Cortex different from Backstage?
Backstage is an open source framework you build and staff. Cortex is a hosted product with scorecards and initiatives out of the box and no platform team required to keep it running.
Checkmk: How does Checkmk calculate pricing by host count?
Checkmk uses service-based pricing where each monitored aspect (file system, hardware sensor, switch port, metric) counts as one service. On average, there are approximately 30 services per host.
SourceCortex: Is pricing published?
No. Cortex requires a sales conversation and prepares a custom proposal.
Checkmk: What is the difference between Checkmk Pro and Ultimate tiers?
Pro tier at 190 EUR/month includes advanced analytics and 8x5 support, while Ultimate at 275 EUR/month adds full-stack observability, advanced compliance features, and upgradable 24/7 support.
SourceCortex: Can it self-host?
It is offered as a hosted product; on-premise arrangements are handled through sales rather than published.
Checkmk: Does Checkmk offer a managed SaaS option?
Yes, Checkmk CloudAI is a fully managed SaaS tier at 240 EUR/month with 99.5% uptime SLA and support for up to 50000 services.
SourceCortex: What is the main adoption risk?
Bad or missing service metadata. The catalogue and every scorecard on top of it inherit whatever quality your repositories already have.
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