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Cloud · head to head

Heroku vs Linkerd

Heroku logo

Heroku

Cloud

Cloud Application Platform

From
$5/month
Rated
-
Full reviewWebsite
Linkerd logo

Linkerd

Cloud

Lightweight service mesh for Kubernetes

From
Free
Rated
-
Full reviewWebsite

The short version

  • Only Linkerd has a free tier, so it costs nothing to try first.
  • Each has a real cost: Heroku there is no free dyno tier; the cheapest Eco dyno is $5 per month; Linkerd deliberately fewer features than Istio, so complex routing and multi-cluster policy can hit its limits
  • They diverge on capability: Heroku covers Git-based deployment, Linkerd covers Automatic mutual TLS.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Heroku and Linkerd actually diverge.

Attributes where Heroku and Linkerd differ
AttributeHerokuLinkerd
Starting price$5/monthFree
Pricing modelsubscriptionOpen source, no licence fee
Free tierNoYes
PlatformsWeb, Api, WorkersKubernetes, Linux
Founded2007Unknown

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

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 Heroku

  • Git-based deployment
  • Buildpacks
  • Dynos (containers)
  • Add-ons marketplace
  • Postgres database
  • Environment variables
  • Logging
  • API

Only in Linkerd

  • Automatic mutual TLS
  • Golden metrics
  • Rust micro-proxy
  • Traffic policy

What people use each for

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

Heroku

  • Application hostingnot Linkerd
  • Database as a servicenot Linkerd
  • CI/CD pipelinesnot Linkerd
  • API deploymentnot Linkerd

Linkerd

  • Adding mutual TLS between services to satisfy a compliance requirementnot Heroku
  • Getting per-service latency and success rates without instrumenting applicationsnot Heroku
  • Progressive delivery with traffic splitting during rolloutsnot Heroku

Where each one falls short

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

Heroku

  • There is no free dyno tier; the cheapest Eco dyno is $5 per month
  • Eco dynos sleep after 30 minutes of inactivity, are restricted to personal accounts and allow only 2 process types
  • Free SSL and 10 process types start at the Basic dyno at $7 per month
  • Private and Shield dyno types require a Private Space, which is billed on top of the dynos
  • Private Space dynos start at $250 per month for Private-M and $500 per month for Private-L
  • Dyno prices are per dyno per month, so an app with several process types multiplies the bill

Linkerd

  • Deliberately fewer features than Istio, so complex routing and multi-cluster policy can hit its limits
  • Kubernetes only, with no story for workloads outside a cluster
  • A sidecar per pod is still real memory and latency overhead, however small, and a mesh is another layer to debug during incidents

Pricing, plan by plan

Heroku

$5/month
  • Eco Dyno$5/month
    • 0.5 GB RAM
    • Git/Docker deploy
    • Custom domains
  • Basic Dyno$7/month
    • 0.5 GB RAM
    • Always-on
    • Free SSL
  • Standard-1X Dyno$25/month
    • 0.5 GB RAM
    • Horizontal scaling
    • App metrics
  • Standard-2X Dyno$50/month
    • 1 GB RAM
    • Horizontal scaling
    • App metrics

Linkerd

Free
  • LinkerdFree
    • Full functionality
    • No usage limits
    • Community support

Which should you pick?

Choose Heroku if

  • You need git-based deployment.
  • You work on Web, Api, Workers.
  • You also want buildpacks.
Heroku review

Choose Linkerd if

  • You need automatic mutual tls.
  • You want to start without paying.
  • You work on Kubernetes, Linux.
  • You also want golden metrics.
Linkerd review

Questions people ask

Is Heroku or Linkerd better?
Neither clearly leads. Heroku starts at $5/month and Linkerd at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Heroku or Linkerd?
Linkerd has a free tier; the other does not. Paid plans start at $5/month for Heroku and Free for Linkerd.
Does Heroku or Linkerd run on more platforms?
Heroku runs on Web, Api, Workers. Linkerd runs on Kubernetes, Linux.
Can I use Linkerd for free?
Yes. Linkerd has a free tier, so you can try it without paying. Heroku starts at $5/month.
What is Heroku best used for?
Heroku is most often used for application hosting, database as a service, ci/cd pipelines, api deployment. Of those, application hosting and database as a service are not what Linkerd is typically brought in for.
What can Heroku do that Linkerd cannot?
Heroku covers Git-based deployment, Buildpacks, Dynos (containers), Add-ons marketplace. Linkerd covers Automatic mutual TLS, Golden metrics, Rust micro-proxy, Traffic policy.

Answered from the vendors’ own pages

Heroku: How much does Heroku cost?

Heroku dyno pricing starts at $5 per month USD for the Eco tier (with 30-minute inactivity sleep), $7 per month for Basic (always-on), and scales up to $1,500 per month for Performance-2XL with 126 GB RAM.

Source
Linkerd: Is Linkerd free?

The open-source project is free. Buoyant, its maintainer, sells enterprise distributions and support separately.

Heroku: What is the cheapest always-on Heroku plan?

The Basic Dyno at $7 per month USD is Heroku's cheapest always-on container option. It provides 0.5 GB RAM, free SSL, and support for 10 process types.

Source
Linkerd: Linkerd or Istio?

Linkerd trades features for simplicity, with a smaller proxy and far less configuration. Istio is more capable and correspondingly more work to run.

Heroku: How is Heroku Postgres priced?

Heroku Postgres Essential tier (shared resources) starts at $5-$20 per month for 1-32 GB disk. Standard tier (dedicated) ranges $50-$12,000 per month. Premium, Private, Shield, and Advanced tiers offer higher performance at corresponding prices.

Source
Linkerd: Do I need a service mesh at all?

Only if you need mutual TLS, uniform retries or per-service traffic metrics across many services. For a handful of services it is usually more machinery than the problem justifies.

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