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Logging · head to head

Logz.io vs Loki

Logz.io logo

Logz.io

Logging

AI-Powered Log Analytics and Monitoring Platform

From
$99/month
Rated
-
Full reviewWebsite
Loki logo

Loki

Logging

Like Prometheus but for Logs

From
Free
Rated
-
Full reviewWebsite

The short version

  • Only Loki has a free tier, so it costs nothing to try first.
  • Each has a real cost: Logz.io saaS-only with no self-hosting option; Loki the Grafana Cloud free tier caps log ingestion at 50 GB a month with 14 day retention
  • They diverge on capability: Logz.io covers AI-powered insights, Loki covers Label-based indexing.
  • Prices and features above were last checked on 2 September 2026.

Where they differ

Only the attributes on which Logz.io and Loki actually diverge.

Attributes where Logz.io and Loki differ
AttributeLogz.ioLoki
Starting price$99/monthFree
Pricing modelUnknownopen-source
Free tierNoYes
PlatformsCloud (SaaS), WebWeb, Api

Identical on both: user rating (Not yet rated), category (Logging), founded (2014).

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 Logz.io

  • AI-powered insights
  • Elasticsearch integration
  • Alert management
  • Security analytics

Only in Loki

  • Label-based indexing
  • Real-time log streaming
  • LogQL query language

Both cover

  • Log aggregation
  • API
  • Webhooks
  • REST
  • Web support
  • Api support

What people use each for

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

Logz.io

  • Log monitoringnot Loki
  • Application performancenot Loki
  • Security analyticsnot Loki
  • Troubleshootingnot Loki

Loki

  • Aggregating application and infrastructure logs with label based indexingnot Logz.io
  • Querying logs alongside metrics in Grafananot Logz.io

Where each one falls short

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

Logz.io

  • SaaS-only with no self-hosting option
  • High pricing for long data retention periods, with steep cost increases for larger data volumes
  • UI can take up to 10 seconds to load
  • Geo-location data is old and inaccurate
  • Expensive for smaller companies with limited log volumes
  • Data retention limitations at 14 days may not meet compliance requirements

Loki

  • The Grafana Cloud free tier caps log ingestion at 50 GB a month with 14 day retention
  • Paid log pricing is split across three separate meters, at $0.050 per GB processed, $0.400 per GB written and $0.100 per GB retained
  • Retaining logs is billed separately from ingesting them, so keeping data costs on an ongoing basis rather than once
  • The Pro plan carries a $19 a month platform fee before any usage charges

Pricing, plan by plan

Logz.io

$99/month
  • Pro$99/month
    • Log management
    • Real-time search
    • Basic alerts
  • Enterprise$undefined/mo
    • All Pro features
    • Advanced security
    • Dedicated support

Loki

Free
  • FreeFree
    • Log aggregation
    • Label-based indexing
    • Real-time log streaming

Which should you pick?

Choose Logz.io if

  • You need ai-powered insights.
  • You work on Cloud (SaaS), Web.
  • You also want elasticsearch integration.
Logz.io review

Choose Loki if

  • You need label-based indexing.
  • You want to start without paying.
  • You work on Web, Api.
  • You also want real-time log streaming.
Loki review

Questions people ask

Is Logz.io or Loki better?
Neither clearly leads. Logz.io starts at $99/month and Loki at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Logz.io or Loki?
Loki has a free tier; the other does not. Paid plans start at $99/month for Logz.io and Free for Loki.
Does Logz.io or Loki run on more platforms?
Logz.io runs on Cloud (SaaS), Web. Loki runs on Web, Api.
Can I use Loki for free?
Yes. Loki has a free tier, so you can try it without paying. Logz.io starts at $99/month.
What is Logz.io best used for?
Logz.io is most often used for log monitoring, application performance, security analytics, troubleshooting. Of those, log monitoring and application performance are not what Loki is typically brought in for.
What can Logz.io do that Loki cannot?
Logz.io covers AI-powered insights, Elasticsearch integration, Alert management, Security analytics. Loki covers Label-based indexing, Real-time log streaming, LogQL query language. Both handle Log aggregation, API, Webhooks, REST.

Answered from the vendors’ own pages

Logz.io: Does Logz.io support self-hosting?

No. Logz.io is a fully SaaS platform with no self-hosting option, limiting flexibility for organizations with on-premises requirements or specific data residency needs.

Source
Loki: What does it cost to use Grafana Loki?

Loki is open source and free under the AGPLv3 license for self-hosted deployments. Grafana's managed Cloud Logs service includes a free tier up to 50GB of logs at no cost.

Source
Logz.io: Is Logz.io based on open-source ELK Stack?

Logz.io is built on the ELK Stack (Elasticsearch, Logstash, Kibana) but uses managed hosting. Note that Elasticsearch and Kibana switched to non-open-source licenses (SSPL) in February 2021, which may have legal implications.

Loki: Are there paid options for Loki beyond the free tier?

Yes. Grafana Cloud Logs offers paid tiers for teams and enterprises, and Enterprise Logs provides self-managed options with expert support for organizations with data localization or privacy requirements.

Source
Loki: What license does open source Loki use?

Loki is released under the AGPLv3 license, which requires you to share modifications and publish your source code if you deploy modifications publicly.

Source
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