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Elastic APM vs ELK Stack

Elastic APM logo

Elastic APM

Software

Application Performance Monitoring from Elastic

From
Free
Rated
-
Full reviewWebsite
ELK Stack logo

ELK Stack

Software

Open Source Search and Log Analytics

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Elastic APM pricing is not published on the product page; cost follows the underlying Elastic deployment rather than being quoted per host or per service; ELK Stack the free Basic self managed subscription excludes machine learning, alerting, single sign on via SAML or OpenID Connect, LDAP and Active Directory authentication, field and document level security, searchable snapshots and cross cluster replication
  • They diverge on capability: Elastic APM covers Performance monitoring, ELK Stack covers Full-text search.

Where they differ

Only the attributes on which Elastic APM and ELK Stack actually diverge.

Attributes where Elastic APM and ELK Stack differ
AttributeElastic APMELK Stack

Identical on both: starting price (Free), pricing model (open-source), free tier (Yes), platforms (Web, Api), user rating (Not yet rated), category (Unknown), founded (2011).

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 Elastic APM

  • Performance monitoring
  • Error tracking
  • Transaction tracing
  • Custom metrics

Only in ELK Stack

  • Full-text search
  • Data visualization
  • Log aggregation
  • Time-series analytics

Both cover

  • API
  • Webhooks
  • REST
  • Web support
  • Api support

What people use each for

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

Elastic APM

  • Distributed tracing across microservicesnot ELK Stack
  • Auto-instrumenting Java, .NET, Python, Go, Node.js, Ruby, PHP and C++ servicesnot ELK Stack
  • OpenTelemetry-native collection through the Elastic distributionsnot ELK Stack
  • Correlating latency and errors with machine learningnot ELK Stack
  • Monitoring LLM calls alongside application tracesnot ELK Stack

ELK Stack

  • Centralised log search and analytics over Elasticsearchnot Elastic APM
  • Dashboards and visualisation of machine data in Kibananot Elastic APM
  • Self managing a search and observability cluster on your own hardwarenot Elastic APM

Where each one falls short

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

Elastic APM

  • Pricing is not published on the product page; cost follows the underlying Elastic deployment rather than being quoted per host or per service
  • Self-managed deployment means running and scaling Elasticsearch yourself
  • Serverless does not carry every capability the hosted option does

ELK Stack

  • The free Basic self managed subscription excludes machine learning, alerting, single sign on via SAML or OpenID Connect, LDAP and Active Directory authentication, field and document level security, searchable snapshots and cross cluster replication
  • Cross cluster operations require the same subscription tier on every cluster involved
  • The 99.95 percent monthly uptime SLA applies only to the Platinum and Enterprise subscription tiers
  • Three deployment models are priced on three different bases: resource based for Cloud Hosted, usage based for Serverless and licence based on nodes and RAM for self managed
  • Elastic Cloud Serverless does not yet support traffic filtering, cross project search or bring your own key
  • The pricing page publishes no rate for any tier

Pricing, plan by plan

Elastic APM

Free
  • FreeFree
    • Performance monitoring
    • Error tracking
    • Transaction tracing

ELK Stack

Free
  • FreeFree
    • Full-text search
    • Data visualization
    • Log aggregation

Which should you pick?

Choose Elastic APM if

  • You need performance monitoring.
  • You want to start without paying.
  • You work on Web, Api.
  • You also want error tracking.
Elastic APM review

Choose ELK Stack if

  • You need full-text search.
  • You want to start without paying.
  • You work on Web, Api.
  • You also want data visualization.
ELK Stack review

Questions people ask

Is Elastic APM or ELK Stack better?
Neither clearly leads. Elastic APM starts at Free and ELK Stack at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Elastic APM or ELK Stack?
Elastic APM starts at Free and ELK Stack at Free.
Does Elastic APM or ELK Stack run on more platforms?
Both run on Web, Api, so platform support will not decide this one for you.
Can I use Elastic APM for free?
Both have a free tier, so you can try either at no cost before committing.
What is Elastic APM best used for?
Elastic APM is most often used for distributed tracing across microservices, auto-instrumenting java, .net, python, go, node.js, ruby, php and c++ services, opentelemetry-native collection through the elastic distributions, correlating latency and errors with machine learning. Of those, distributed tracing across microservices and auto-instrumenting java, .net, python, go, node.js, ruby, php and c++ services are not what ELK Stack is typically brought in for.
What can Elastic APM do that ELK Stack cannot?
Elastic APM covers Performance monitoring, Error tracking, Transaction tracing, Custom metrics. ELK Stack covers Full-text search, Data visualization, Log aggregation, Time-series analytics. Both handle API, Webhooks, REST, Web support.
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