
Datadog
Top Pick4.5/5From $15/host/mo
Best for: 20-10,000+ engineers
Strengths
- Most comprehensive observability : infra, APM, logs, RUM in one
- Best dashboards and alerting in the category
- 800+ integrations
- Strong AI/ML anomaly detection
Limitations
- Notoriously expensive at scale : bills can be unpredictable
- Per-host pricing model penalizes microservices



