Datadog vs Prometheus
A source-aware comparison of pricing, documented capabilities and workflow fit.
Short answer
- Price: Prometheus is cheaper — Free vs $15/user/mo.
- How to start: Datadog is from $15/user/mo, Prometheus is free.
- Where they differ: only Datadog has mobile app and sso (saml) and only Prometheus has open source / self-hostable; both offer public api.
These lines are generated from the pricing we track, not from a paid placement. How we score tools.
What Datadog is
Datadog is a comprehensive monitoring and security platform for cloud-scale applications. It provides full visibility across your entire stack—from infrastructure and logs to application performance and user experience. By centralizing all your metrics into one platform, Datadog allows teams to detect performance issues, troubleshoot outages, and optimize their systems in real-time. It is the premier choice for organizations running complex, microservices-based architectures in the cloud.
What Prometheus is
Prometheus scrapes metrics from your services and stores them as time series, with its own query language for alerting and dashboards.
Side by side
| Datadog | Prometheus | |
|---|---|---|
| Category | Developer Tools | Developer Tools |
| How to start | $15/user/moverified | Freeverified |
| Public API | Yes | Yes |
| Mobile app | Yes | No |
| Open source / self-hostable | No | Yes |
| SSO (SAML) | Yes | No |
| Visit | Datadog ↗ | Prometheus ↗ |
What Datadog is built to do
- APM (Tracing)
- Monitor every single request to find bottlenecks in your code and databases.
- Log Management
- Search and analyze all your application logs in one central, fast interface.
- Infrastructure Monitor
- Get real-time insights into the health of your servers and containers.
- Real User Monitoring
- See exactly how your frontend performs for real people around the world.
Choose Datadog if
- DevOps Engineers and Enterprise IT Teams.
Choose Prometheus if
- Teams running services that need metrics and alerting they control.
Evidence and freshness
Where a claim on this page comes from a vendor page, it is linked here.
Prometheus
Open source, free — vendor page verified · reviewed 2026-09-03
Datadog: pros & cons
- Single Source of Truth: Monitor your entire stack in one unified dashboard.
- Deep Visibility: Trace every request across different services for fast debugging.
- Powerful Alerts: Use AI to detect anomalies and notify your team before a crash.
- Infinite Scaling: Built to handle millions of metrics from massive server clusters.
- High Cost: Pricing can become very expensive as you scale and add more modules.
- Complexity: The sheer volume of features and data can be overwhelming at first.
- Configuration Heavy: Setting up advanced monitoring and logs requires significant effort.
Prometheus: pros & cons
- The de facto standard for metrics in Kubernetes
- Pull model means no agent pushing to you
- Free and open source
- Long-term storage needs an extra component
- PromQL takes time to learn
- Not built for logs or traces
Our verdict on Datadog
The most powerful and comprehensive monitoring tool for modern cloud-native enterprises.
Our verdict on Prometheus
Pair it with Grafana and you have a complete metrics stack. Plan for long-term storage before you need it.