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Grafana Cloud vs Longhorn

Grafana Cloud logo

Grafana Cloud

Cloud

Composable observability platform

From
Free
Rated
-
Full reviewWebsite
Longhorn logo

Longhorn

Cloud

Open source distributed block storage for Kubernetes, incubating at the CNCF

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Grafana Cloud active Series (AS) billing model is difficult to predict and control; misconfiguration can cause sudden spikes and unexpected bills; Longhorn there is no vendor and no SLA, so a production incident at three in the morning is your own problem unless you buy SUSE Rancher Prime support separately.
  • They diverge on capability: Grafana Cloud covers Grafana Dashboards, Longhorn covers Per-volume controllers.
  • Prices and features above were last checked on 1 September 2026.

Where they differ

Only the attributes on which Grafana Cloud and Longhorn actually diverge.

Attributes where Grafana Cloud and Longhorn differ
AttributeGrafana CloudLonghorn
Pricing modelUnknownOpen source, no licence fee
PlatformsWeb (Chrome, Edge, Firefox, Safari), APILinux, Kubernetes
Founded2014Unknown

Identical on both: starting price (Free), free tier (Yes), 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 Grafana Cloud

  • Grafana Dashboards
  • Prometheus Metrics
  • Loki Logs
  • Tempo Traces
  • Alerting
  • OnCall
  • Synthetic Monitoring
  • Incident Management

Only in Longhorn

  • Per-volume controllers
  • Synchronous replication
  • Snapshots and backups
  • Volume expansion
  • Disaster recovery volumes
  • Web interface

What people use each for

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

Grafana Cloud

  • Infrastructure monitoringnot Longhorn
  • Application monitoringnot Longhorn
  • Log aggregationnot Longhorn
  • Distributed tracingnot Longhorn

Longhorn

  • An on-premises Kubernetes cluster with local disks and no SAN that needs replicated persistent volumesnot Grafana Cloud
  • Edge sites where shipping a storage array is impractical and three nodes is the whole clusternot Grafana Cloud
  • A K3s deployment where the storage layer must be light enough to run alongside the workloadsnot Grafana Cloud
  • A team that wants snapshots and S3 backups of persistent volumes without paying per-node storage licencesnot Grafana Cloud

Where each one falls short

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

Grafana Cloud

  • Active Series (AS) billing model is difficult to predict and control; misconfiguration can cause sudden spikes and unexpected bills
  • Reduced control and customization compared to self-hosted Grafana instances
  • Data sovereignty concerns for organizations requiring on-premises data retention
  • Limited reporting types compared to traditional BI tools for compliance and audit requirements

Longhorn

  • There is no vendor and no SLA, so a production incident at three in the morning is your own problem unless you buy SUSE Rancher Prime support separately.
  • Synchronous replication across nodes means write latency depends on the slowest replica and the network between nodes, which makes it a poor fit for latency-sensitive databases.
  • Every replica is a full copy, so three-way replication consumes three times the raw capacity, unlike erasure-coded systems that are far more space efficient.
  • It is designed for block storage on modest clusters and does not scale to the node counts or throughput that Ceph or a commercial array handles, so growth eventually forces a migration.
  • Recovery from certain degraded states, such as a volume stuck detaching or replicas failing to rebuild, requires manual intervention and knowledge of Longhorn internals that is not widely held.

Pricing, plan by plan

Grafana Cloud

Free
  • FreeFree
    • 10k active series (metrics)
    • 50GB logs/traces per month
    • 3 active users
  • Pro$19/month
    • Usage-based pricing beyond free tier
    • 8 USD per active visualization user
    • Included Grafana Alerting
  • Enterprise$25000/year
    • Minimum annual commitment
    • Full-service deployment options
    • Premium support

Longhorn

Free
  • LonghornFree
    • Apache 2.0 licensed, no licence fee
    • Community support via GitHub and Slack only
    • No vendor SLA or escalation path

Which should you pick?

Choose Grafana Cloud if

  • You need grafana dashboards.
  • You want to start without paying.
  • You work on Web (Chrome, Edge, Firefox, Safari), API.
  • You also want prometheus metrics.
Grafana Cloud review

Choose Longhorn if

  • You need per-volume controllers.
  • You want to start without paying.
  • You work on Linux, Kubernetes.
  • You also want synchronous replication.
Longhorn review

Questions people ask

Is Grafana Cloud or Longhorn better?
Neither clearly leads. Grafana Cloud starts at Free and Longhorn at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Grafana Cloud or Longhorn?
Grafana Cloud starts at Free and Longhorn at Free.
Does Grafana Cloud or Longhorn run on more platforms?
Grafana Cloud runs on Web (Chrome, Edge, Firefox, Safari), API. Longhorn runs on Linux, Kubernetes.
Can I use Grafana Cloud for free?
Both have a free tier, so you can try either at no cost before committing.
What is Grafana Cloud best used for?
Grafana Cloud is most often used for infrastructure monitoring, application monitoring, log aggregation, distributed tracing. Of those, infrastructure monitoring and application monitoring are not what Longhorn is typically brought in for.
What can Grafana Cloud do that Longhorn cannot?
Grafana Cloud covers Grafana Dashboards, Prometheus Metrics, Loki Logs, Tempo Traces. Longhorn covers Per-volume controllers, Synchronous replication, Snapshots and backups, Volume expansion.

Answered from the vendors’ own pages

Grafana Cloud: What are the exact limits of Grafana Cloud's free tier?

Grafana Cloud free tier includes 10,000 active series for metrics, 50GB logs and traces per month, 3 active visualization users, and 14-day retention with community support. No credit card required.

Source
Longhorn: Who do we call when it breaks?

Nobody, unless you buy SUSE Rancher Prime, which includes commercial support for Longhorn. This is the decisive question for production use.

Grafana Cloud: How is Grafana Cloud billed, and what are the per-unit costs?

Grafana Cloud Pro tier starts at $19/month platform fee plus usage-based charges. Metrics cost $6.50 per 1,000 active series above free limits, logs and traces are charged per GB ingested, and visualization users are $8 per active user.

Source
Longhorn: How much capacity does replication cost?

Full copies, so three replicas means three times the raw capacity. Budget accordingly rather than assuming erasure coding efficiency.

Grafana Cloud: Can I use Grafana Cloud for open-source Grafana deployments?

Grafana Cloud is the managed cloud service version. Open-source Grafana is free and can be self-hosted indefinitely on your own infrastructure.

Source
Longhorn: Is it suitable for production databases?

For modest workloads yes, but synchronous replication adds write latency and high-transaction databases usually want something faster.

Grafana Cloud: What observability signals does Grafana Cloud include?

Grafana Cloud includes metrics (via Mimir), logs (via Loki), traces (via Tempo), profiles, and synthetics, with unified querying and visualization across all signals.

Source
Grafana Cloud: Does Grafana Cloud include alerting and how is it priced?

Yes, Grafana Alerting is included at no additional charge across all tiers. Rule storage, evaluation, and notification delivery are covered by the platform fee with no per-alert or per-notification fees.

Source
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