Prometheus
Depends
Confidence: Medium
Buy it if you run Kubernetes or cloud-native infrastructure and can operate open-source tooling yourself.
Comparison
Prometheus vs SigNoz
Prometheus and SigNoz both land on Depends.
SigNoz
Depends
Confidence: Medium
Buy if you're an engineering team comfortable with OpenTelemetry and some ops work who wants to cut Datadog-class bills.
| Compare | Prometheus | SigNoz |
|---|---|---|
| Verdict | Depends | Depends |
| Best for | Kubernetes and container monitoring | Engineering teams ditching Datadog bills |
| Who it's not for | Non-technical teams wanting turnkey hosting | Teams with nobody to run ClickHouse and upgrades |
| Privacy | Security model is documented, but 2026 brought XSS and DoS CVEs, and misconfigured public exposure is the top real-world risk. | SOC 2 Type II claimed, but multiple 2026 CVEs (SQL injection, auth bypass) mean you must patch fast. |
| Support quality | No support evidence in sources | No user support evidence in sources |
| Public sentiment | Adoption is enormous . 68,598 companies tracked . yet teams routinely evaluate simpler or cheaper alternatives.³ | Users like the price and OpenTelemetry approach but report unstable log queries and UI rough edges in production. |
| Biggest gotcha | Over 330K instances exposed to DoS attacks and data compromise in Dec 2024; never expose it publicly⁷ | SQL injection CVEs in alert endpoints, unfixed until 0.142.1 |
Pick Prometheus when
- Kubernetes and container monitoring
- DevOps teams comfortable running OSS
- Cloud-native metrics and alerting
- Grafana-centric dashboards
When Prometheus is not a fit
- Non-technical teams wanting turnkey hosting
- Anyone needing vendor SLAs and support
- Small apps needing one simple uptime check
- Teams with no capacity to operate a TSDB
Pick SigNoz when
- Engineering teams ditching Datadog bills
- OpenTelemetry-standard shops
- Self-hosters with ops capacity
- Startups consolidating logs, traces, metrics
When SigNoz is not a fit
- Teams with nobody to run ClickHouse and upgrades
- Buyers expecting polished, stable UX today
- Orgs that can't patch within days of a CVE
- Non-engineering teams; this is dev-only tooling
Sources
official
review
- Companies that use Prometheus (68,598)theirstack.comnews
- CVE-2026-40179 - National Vulnerability Databasenvd.nist.govsecurity
- CVE-2026-42154: Prometheus DOS Vulnerabilitysentinelone.comsecurity
security
security
- Prometheus Security model (official docs)prometheus.ioofficial
- Amazon Managed Service for Prometheus Pricingaws.amazon.comofficial
- Pricing comparison for Managed Prometheusvictoriametrics.comreview
review
- Prometheus Monitoring OSS | Grafanagrafana.comofficial
news
review
review
- SigNoz homepagesignoz.ioofficial