Is Checkmk or Envoy better?

Neither clearly leads. Checkmk starts at Free and Envoy at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.

Which is cheaper, Checkmk or Envoy?

Checkmk starts at Free and Envoy at Free.

Does Checkmk or Envoy run on more platforms?

Both run on Web, so platform support will not decide this one for you.

Can I use Checkmk for free?

Both have a free tier, so you can try either at no cost before committing.

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 Envoy is typically brought in for.

What can Checkmk do that Envoy cannot?

Envoy covers xDS dynamic configuration, Protocol breadth, Filter chain architecture, Observability by default.

Technology · head to head

Checkmk vs Envoy

Checkmk

Technology

Comprehensive IT monitoring, open and flexible

From: Free
Rated: -

Full review Website

Envoy

Technology

A high-performance L7 proxy written in C++ that is configured by an API rather than a config file, and is usually deployed under a control plane.

From: Free
Rated: -

Full review Website

The short version

Each has a real cost: Checkmk pricing calculated by service count, not hosts (approximately 30 services per host on average); Envoy the configuration surface is very large and hand-written bootstrap YAML runs to hundreds of lines for routing that Nginx expresses in twenty, which is why nearly every production deployment sits under a control plane and inherits that control plane's constraints as well.
Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Checkmk and Envoy actually diverge.

Attributes where Checkmk and Envoy differ
Attribute	Checkmk	Envoy
Pricing model	subscription	open-source

Identical on both: starting price (Free), free tier (Yes), platforms (Web), 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 Envoy does not also cover.

Only in Envoy

xDS dynamic configuration
Protocol breadth
Filter chain architecture
Observability by default
Outlier detection
Traffic shaping
mTLS termination and origination
Hot restart

What people use each for

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

Checkmk

Infrastructure monitoringnot Envoy
System observabilitynot Envoy
Enterprise compliance monitoringnot Envoy

Envoy

Acting as the data plane under a service mesh or Gateway API implementation, which is how the overwhelming majority of deployments use itnot Checkmk
An edge or API gateway that needs per-route retry budgets, circuit breaking and outlier detection rather than round-robin proxyingnot Checkmk
Migrating traffic between service versions or between a monolith and its replacement, using weighted splits and shadow trafficnot Checkmk
Standardising observability across a polyglot estate, so that latency, error rates and tracing look the same regardless of the language a service is written innot 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

Envoy

The configuration surface is very large and hand-written bootstrap YAML runs to hundreds of lines for routing that Nginx expresses in twenty, which is why nearly every production deployment sits under a control plane and inherits that control plane's constraints as well.
xDS is the real API and it is not stable in the comfortable sense; the v2 API set was removed outright, resource types continue to be deprecated, and your control plane and Envoy binaries have to be upgraded roughly in step or the proxies stop accepting configuration.
Extending it properly means writing a C++ filter and building and maintaining your own Envoy binary; the alternatives are Lua, which adds per-request overhead, and proxy-wasm, whose ABI has remained effectively experimental for years with a real performance cost.
At sidecar density the per-proxy memory and CPU footprint is a measurable share of cluster capacity, since thousands of workloads each carry a full proxy, and this is precisely the cost that has pushed mesh projects towards node-level or ambient architectures.
There is no single vendor selling support for Envoy itself; you get the community plus control-plane vendors such as Solo.io and Tetrate, so an Envoy-level production bug is your own engineers in a C++ codebase unless a support contract happens to cover it.
Diagnosing why a request got a particular response involves reading config dumps, the stats endpoint and the RESPONSE_FLAGS codes in access logs rather than a readable error, which is a specific skill you must hire or spend months growing.

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

Envoy

Free

No published plan breakdown. See the Envoy review.

Which should you pick?

Choose Checkmk if

You want to start without paying.

Checkmk review

Choose Envoy if

You need xds dynamic configuration.
You want to start without paying.
You also want protocol breadth.

Envoy review

Questions people ask

Is Checkmk or Envoy better?: Neither clearly leads. Checkmk starts at Free and Envoy at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Checkmk or Envoy?: Checkmk starts at Free and Envoy at Free.
Does Checkmk or Envoy run on more platforms?: Both run on Web, so platform support will not decide this one for you.
Can I use Checkmk for free?: Both have a free tier, so you can try either at no cost before committing.
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 Envoy is typically brought in for.
What can Checkmk do that Envoy cannot?: Envoy covers xDS dynamic configuration, Protocol breadth, Filter chain architecture, Observability by default.

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

Envoy: Should I run Envoy on its own, or under a control plane?

Almost always under one. Directly authoring xDS or static bootstrap configuration is viable for a handful of routes and becomes unmanageable beyond that. Envoy Gateway, Istio, Contour, Gloo and Consul all exist to generate that configuration for you.

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

Envoy: How does it compare with Nginx or HAProxy?

Envoy is dynamically configured over an API and instrumented far more heavily; Nginx and HAProxy are faster to configure and lighter for straightforward reverse proxying. If you never need to change routing without a reload, Envoy is more machinery than the problem requires.

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

Envoy: What does it cost?

Nothing to licence; it is Apache 2.0 and there is no paid edition. The cost is engineering time and, for most organisations, a commercial control plane or cloud service that packages it.

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

Envoy: Can I write extensions without C++?

You can write Lua filters or proxy-wasm modules in Rust, Go, C++ or AssemblyScript. Both carry per-request overhead compared with a native filter, and the Wasm path has been slower to stabilise than the project originally projected.

Envoy: Is it a CNCF project?

Yes, it is a graduated CNCF project licensed under Apache 2.0, which means the trademark and governance sit with the foundation rather than with Lyft or any vendor.

Checkmk vs Envoy

Checkmk

Envoy

The short version

Where they differ

What each one covers

Only in Checkmk

Only in Envoy

What people use each for

Checkmk

Envoy

Where each one falls short

Checkmk

Envoy

Pricing, plan by plan

Checkmk

Envoy

Which should you pick?

Choose Checkmk if

Choose Envoy if

Questions people ask

Answered from the vendors’ own pages

Related pages

More on Checkmk

More on Envoy

Keep looking

Other head to heads