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Technology · head to head

Checkmk vs Superhuman

Checkmk logo

Checkmk

Technology

Comprehensive IT monitoring, open and flexible

From
Free
Rated
-
Full reviewWebsite
Superhuman logo

Superhuman

Technology

The fastest email experience ever made

From
$30/month
Rated
-
Full reviewWebsite

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); Superhuman high pricing compared to free alternatives like Gmail
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Checkmk and Superhuman actually diverge.

Attributes where Checkmk and Superhuman differ
AttributeCheckmkSuperhuman
Starting priceFree$30/month
Pricing modelsubscriptionUnknown
Free tierYesNo
PlatformsWebWeb, iOS
FoundedUnknown2015

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

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 Superhuman does not also cover.

Only in Superhuman

  • Blazing fast performance
  • Keyboard-first design
  • AI-powered triage
  • Split inbox
  • Read statuses
  • Remind me later
  • Social insights
  • Calendar integration

What people use each for

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

Checkmk

  • Infrastructure monitoringnot Superhuman
  • System observabilitynot Superhuman
  • Enterprise compliance monitoringnot Superhuman

Superhuman

  • Email managementnot Checkmk
  • Inbox zeronot Checkmk
  • Team collaborationnot Checkmk
  • Sales outreachnot Checkmk
  • Executive communicationnot 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

Superhuman

  • High pricing compared to free alternatives like Gmail
  • Lacks unified inbox for managing multiple email accounts in a single view
  • Limited calendar functionality compared to dedicated scheduling tools
  • No native task management features

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

Superhuman

$30/month
  • Starter$30/month
    • Email productivity
    • Superhuman AI
    • Team collaboration
  • Business$40/month
    • Auto Drafts
    • Ask AI
    • CRM integrations

Which should you pick?

Choose Checkmk if

  • You want to start without paying.
Checkmk review

Choose Superhuman if

  • You need blazing fast performance.
  • You work on Web, iOS.
  • You also want keyboard-first design.
Superhuman review

Questions people ask

Is Checkmk or Superhuman better?
Neither clearly leads. Checkmk starts at Free and Superhuman at $30/month, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Checkmk or Superhuman?
Checkmk has a free tier; the other does not. Paid plans start at Free for Checkmk and $30/month for Superhuman.
Does Checkmk or Superhuman run on more platforms?
Checkmk runs on Web. Superhuman runs on Web, iOS.
Can I use Checkmk for free?
Yes. Checkmk has a free tier, so you can try it without paying. Superhuman starts at $30/month.
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 Superhuman is typically brought in for.
What can Checkmk do that Superhuman cannot?
Superhuman covers Blazing fast performance, Keyboard-first design, AI-powered triage, Split inbox.

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.

Source
Superhuman: How much does Superhuman cost?

Superhuman offers three plans: Starter at $30/user/month, Business at $40/user/month, and Enterprise with custom pricing. Annual billing provides approximately 16.7% savings, bringing the Starter plan to $25/month.

Source
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.

Source
Superhuman: What email platforms does Superhuman work with?

Superhuman is compatible with Gmail and Outlook, and integrates with Google Calendar and Akiflow for calendar and task planning workflows.

Source
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.

Source
Superhuman: Does the Business plan include CRM integrations?

Yes, the Business plan at $40/month unlocks CRM integrations with HubSpot and Salesforce, along with advanced AI features like Auto Drafts and Ask AI.

Source
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.

Source
Superhuman: What happened to Superhuman after the Grammarly acquisition?

Superhuman was acquired by Grammarly on July 1, 2025. The company now operates under the Superhuman name while integrating with Grammarly's AI platform.

Source
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