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Logging · head to head

Checkly vs Sematext

Checkly logo

Checkly

Logging

Active reliability platform combining uptime monitoring, API testing, and incident response

From
Free
Rated
-
Full reviewWebsite
Sematext logo

Sematext

Logging

Full Stack Observability Platform

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Checkly free tier has limited check allocations per month; Sematext the $5 Basic plan caps ingestion at 500 MB a day and retains logs for 7 days
  • They diverge on capability: Checkly covers Uptime monitoring, Sematext covers Log aggregation.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Checkly and Sematext actually diverge.

Attributes where Checkly and Sematext differ
AttributeChecklySematext
Pricing modelsubscriptionusage-based
PlatformsWeb, CLI, APIWeb, Api
FoundedUnknown2007

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

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 Checkly

  • Uptime monitoring
  • Synthetic browser testing
  • API monitoring
  • Heartbeat monitoring
  • Monitoring-as-Code
  • Status pages
  • Root cause analysis
  • Global locations

Only in Sematext

  • Log aggregation
  • APM
  • Metrics monitoring
  • Anomaly detection
  • API
  • Webhooks
  • REST
  • Web support

What people use each for

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

Checkly

  • Monitor API endpoints with custom assertionsnot Sematext
  • Test user journeys with browser automationnot Sematext
  • Detect performance degradation across regionsnot Sematext
  • Verify DNS and TCP connectivitynot Sematext
  • Ensure cron jobs and background tasks completenot Sematext

Sematext

  • Centralised log management and search across servicesnot Checkly
  • Infrastructure and application monitoring alongside logsnot Checkly

Where each one falls short

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

Checkly

  • Free tier has limited check allocations per month
  • Overage charges can add up with high-volume workloads
  • Status pages require separate paid tier
  • Root cause analysis is separate billing component

Sematext

  • The $5 Basic plan caps ingestion at 500 MB a day and retains logs for 7 days
  • Ingestion and storage are billed on separate meters, at $0.10 per GB received and $0.15 per GB stored
  • Retention is a plan property rather than a setting, so keeping logs longer means moving tier
  • The published pricing page renders Standard and Pro figures from unresolved template placeholders, so only the Basic numbers are actually readable

Pricing, plan by plan

Checkly

Free
  • HobbyFree
    • 10 uptime monitors
    • 1,000 browser checks monthly
    • 10,000 API checks monthly
  • Team$64/month
    • 75 uptime monitors
    • 12,000 browser checks monthly
    • 100,000 API checks monthly
  • Enterprise$undefined/custom
    • Custom monitor quantities
    • All 22 global locations
    • 1-second check frequency

Sematext

Free
  • FreeFree
    • Log aggregation
    • APM
    • Metrics monitoring

Which should you pick?

Choose Checkly if

  • You need uptime monitoring.
  • You want to start without paying.
  • You work on Web, CLI, API.
  • You also want synthetic browser testing.
Checkly review

Choose Sematext if

  • You need log aggregation.
  • You want to start without paying.
  • You work on Web, Api.
  • You also want apm.
Sematext review

Questions people ask

Is Checkly or Sematext better?
Neither clearly leads. Checkly starts at Free and Sematext at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Checkly or Sematext?
Checkly starts at Free and Sematext at Free.
Does Checkly or Sematext run on more platforms?
Checkly runs on Web, CLI, API. Sematext runs on Web, Api.
Can I use Checkly for free?
Both have a free tier, so you can try either at no cost before committing.
What is Checkly best used for?
Checkly is most often used for monitor api endpoints with custom assertions, test user journeys with browser automation, detect performance degradation across regions, verify dns and tcp connectivity. Of those, monitor api endpoints with custom assertions and test user journeys with browser automation are not what Sematext is typically brought in for.
What can Checkly do that Sematext cannot?
Checkly covers Uptime monitoring, Synthetic browser testing, API monitoring, Heartbeat monitoring. Sematext covers Log aggregation, APM, Metrics monitoring, Anomaly detection.

Answered from the vendors’ own pages

Checkly: What is included in the free Checkly plan?

The free Hobby plan includes 10 uptime monitors, 1,000 monthly browser checks, 10,000 monthly API checks, 6 monitoring locations, and 2-minute minimum check frequency with email, Slack, and webhook alerts.

Source
Sematext: How much does Sematext cost?

Sematext uses a transparent usage-based pricing model. Customers can set a Max Daily Volume for automatic rejection of excess data to prevent unexpected charges and keep costs predictable. Specific tier pricing is available through their cost calculator tool.

Source
Checkly: Can I write monitoring checks in my preferred language?

Yes, Checkly uses TypeScript/JavaScript for monitoring-as-code, integrated with Playwright for browser testing and supporting REST API testing.

Source
Sematext: How does Sematext's pricing compare to competitors?

Sematext is positioned as +3x cheaper than Datadog, with potential annual savings of $800,000 for customers logging more than 200TB/month and a reported 75% decrease in price per GB compared to alternatives.

Source
Checkly: How much does status page add to my bill?

Status pages cost between $0-$30/month depending on your plan tier, billed separately from core monitoring.

Source
Sematext: Does Sematext offer a free trial?

Yes, Sematext offers a 14-day free trial with no credit card required, allowing you to test the platform before committing to a paid plan.

Source
Checkly: What is the minimum check frequency?

The Hobby and Starter plans support 2-minute and 1-minute minimums respectively. The Team plan supports 30-second intervals, while Enterprise offers 1-second minimum frequency.

Source
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