Datadog
Splunk
| Feature | Datadog | Splunk |
|---|---|---|
| Pricing | Free / from $15/mo | Contact sales |
| Free Plan | ✓ Yes | ✗ No |
| Rating | 4.5 / 5 | 4.3 / 5 |
| Best For | devops-teams, sre-teams, cloud-native-companies, enterprises | enterprise, security-teams, devops-engineers, data-analysts |
| Founded | 2010 | 2003 |
| Infrastructure Monitoring | ✓ | ✗ |
| Apm | ✓ | ✗ |
| Log Management | ✓ | ✗ |
| Synthetics | ✓ | ✗ |
| Real User Monitoring | ✓ | ✗ |
| Security Monitoring | ✓ | ✗ |
| Dashboards | ✓ | ✓ |
| Alerting | ✓ | ✓ |
| Log Analysis | ✗ | ✓ |
| Real Time Monitoring | ✗ | ✓ |
| Machine Learning | ✗ | ✓ |
| Siem | ✗ | ✓ |
✓ Datadog Pros
- Unified platform for metrics, traces, logs, and security
- 750+ integrations with cloud services and tools
- Powerful dashboards and alerting system
- AI-powered anomaly detection
✗ Datadog Cons
- Per-host pricing becomes expensive at scale
- Complex pricing with many add-ons
- Data ingestion costs can be unpredictable
✓ Splunk Pros
- Powerful search capabilities
- Real-time monitoring
- Extensive app ecosystem
- Enterprise-grade
✗ Splunk Cons
- Very expensive
- Complex pricing
- Resource-intensive
The Verdict
Datadog is built for devops teams and sre teams, with a focus on infrastructure-monitoring and apm. Splunk targets enterprise and security teams and leads with log-analysis and real-time-monitoring.
Splunk uses custom enterprise pricing, while Datadog starts at $15/mo — a tangible advantage for teams with a fixed budget.
Datadog has a free plan, which gives it a meaningful edge for individuals and small teams exploring their options. Splunk requires a paid subscription from day one.
Feature-wise, Datadog offers broader built-in capabilities (8 features vs 6), while Splunk takes a more focused approach — which can mean a simpler, faster onboarding experience.
This is a genuinely close comparison. If you can, sign up for both free trials (where available) and run a one-week test with your actual team tasks before deciding.