Prometheus vs Grafana Cloud
A detailed comparison to help you choose between Prometheus and Grafana Cloud.
Quick Verdict
4.2/5
Prometheus
0 reviews
3.9/5
Grafana Cloud
0 reviews
Prometheus is rated higher (4.2 vs 3.9). Prometheus is the leading open source metrics monitoring system. Pull-based metrics collection, PromQL query language, and Alertmanager. Kubernetes-native. Self-hosted with integrations for 200+ services. Grafana Cloud provides managed Grafana, Prometheus, Loki (logs), Tempo (traces), and k6 (load testing). Free tier includes 10,000 metrics series. Open source self-hosting also available.
Prometheus Open source metrics and alerting system | Grafana Cloud Open source observability platform — cloud and self-hosted | |
|---|---|---|
| Overview | ||
| Rating | 4.2 (0 reviews)✓ | 3.9 (0 reviews) |
| Pricing model | free | freemium |
| Starting price | Free | Free tier available |
| Best for | DevOps and platform teams that want the Kubernetes-native open-source metrics standard they fully control, and accept running the storage and HA story themselves. | Teams wanting a managed, self-hostable observability stack with a genuinely useful free tier and metrics, logs, and traces under one pane |
| Features | ||
| IPv6 | ||
| DDoS protection | ||
| Automated backups | ||
| Snapshots | ||
| Managed option | ||
| Bare metal | ||
| GPU available | ||
| S3-compatible | ||
| Hourly billing | ||
| Free tier | ||
| Tags | ||
| Tags | free tieropen sourceself hostable | free tieropen sourceself hostableapi accessteam features |
| Visit Prometheus → | Visit Grafana Cloud → | |
Prometheus
Pros
- + Free and open source under Apache 2.0 with independent CNCF governance — no per-node or per-metric licensing
- + The industry-standard metrics stack: PromQL, multidimensional labels, and exporters for most software you already run
- + Kubernetes and Consul service discovery keep target configuration sane at container scale
- + Simple core: single autonomous nodes with local TSDB and a documented operational model
- + CNCF graduated since 2018 with a decade of production history and a very active contributor community
- + Honest documentation — storage constraints and the security model are stated plainly, including what the product deliberately does not do
Cons
- - No built-in long-term storage or global HA — Thanos, Cortex, or Grafana Mimir are separate operational projects
- - High-cardinality labels can blow up RAM and disk with no guardrails in the product
- - No built-in authentication or encryption; endpoints must be kept behind a perimeter by design
- - Multi-tenancy and access control are absent from the core
- - Community support only for the open-source download — SLAs come with paid managed offerings
- - PromQL and histogram handling have a genuine learning curve for teams new to the model
Grafana Cloud
Pros
- + Open source core (AGPLv3) across Grafana/Mimir/Loki/Tempo/Pyroscope — a real self-host exit
- + Permanent free tier: 10k metric series, 50 GB logs/traces/profiles, 500 k6 VUh, no credit card
- + Public Pro pricing ($19/mo platform fee, from $6.50/1k series) with automatic volume discounts
- + 42 stack regions on AWS, Azure, and GCP including a Federal Cloud option
Cons
- - Usage-based billing punishes metric cardinality and log verbosity — bills can spike on app-side mistakes
- - PromQL/LogQL and label design have a real learning curve
- - SLA is 99.5% (paid plans only) — below hyperscaler commitments
- - Some enterprise RBAC/audit/reporting features require a quote-based Enterprise plan
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