Cloud Giant vs OpenTelemetry ClickHouse APM
Datadog vs SigNoz: Which One Should You Choose in 1970?
Datadog offers the most mature all-in-one observability platform but at a notorious price tag. SigNoz is an open-source APM built on OpenTelemetry and ClickHouse, slashing monitoring costs by up to 80%.
Quick verdict
- Large enterprise turnkey
- Datadoghundreds of turnkey legacy integrations
- Modern kubernetes cost
- SigNoznative OTel, self-hostable, zero vendor lock-in
Datadog vs SigNoz: feature comparison
| Feature | DatadogProprietary | SigNozOpen SourceSelf-Hostable |
|---|---|---|
| Open-Source | No | Yes (OpenTelemetry + ClickHouse) |
| Self-Hosted On-Premise | No | Yes (Docker / K8s Helm) |
| Pricing Predictability | Low (Hidden custom metric costs) | High (Pay for storage or raw compute) |
| Log & Trace Correlation | Excellent | Excellent |
Pricing takeaway
A team spending $3,000/month on Datadog host licenses and trace ingestion can run SigNoz self-hosted on a single $150/mo cloud instance.
- Datadog
- Per host + ingested GB + retained spans. Starts at $15/host/mo + heavy add-ons. Free up to 5 hosts with 1-day metric retention.Full Datadog pricing breakdown
- SigNoz
- Open-Source Free / Cloud Usage-based. Starts at $0 (Self-Hosted) or $199/mo (Cloud). Unlimited self-hosted; Cloud free tier includes 30GB logs/traces.Full SigNoz pricing breakdown
Pros and cons
Datadog
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- Unified pane of glass for APM, logs, metrics, security, and synthetic tests
- Over 600 official turnkey agent integrations
- Powerful auto-discovery of cloud infrastructure
Cons
- Notorious for massive unexpected month-end billing surprises
- Complex pricing matrix (custom metrics, APM spans, and log ingestion billed separately)
- Proprietary agent ecosystem
SigNoz
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- Built natively on OpenTelemetry (OTel) standards
- Powered by ClickHouse for ultra-fast columnar log and trace queries
- Typical 60-80% cost savings compared to Datadog bills
Cons
- Requires maintaining ClickHouse cluster if running large self-hosted scales
- Fewer legacy on-premise application integrations compared to Datadog
- Metric and dashboard depth still trails Datadog for very large multi-team setups
Datadog vs SigNoz: FAQ
Is SigNoz a good alternative to Datadog?
Datadog offers the most mature all-in-one observability platform but at a notorious price tag. SigNoz is an open-source APM built on OpenTelemetry and ClickHouse, slashing monitoring costs by up to 80%.
Which is cheaper, Datadog or SigNoz?
A team spending $3,000/month on Datadog host licenses and trace ingestion can run SigNoz self-hosted on a single $150/mo cloud instance.
Is Datadog or SigNoz open source?
Datadog is proprietary. SigNoz is open source (github.com/SigNoz/signoz).
Can I self-host Datadog or SigNoz?
Datadog cannot be self-hosted. SigNoz can be self-hosted. Difficulty: Medium (Docker Compose with ClickHouse).
Do Datadog and SigNoz have a free tier?
Datadog: Free up to 5 hosts with 1-day metric retention. SigNoz: Unlimited self-hosted; Cloud free tier includes 30GB logs/traces.