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Reflex vs Datadog
Datadog is best-in-class observability for large, distributed systems. Reflex targets teams on 1–50 Linux servers who need incidents fixed — not just graphed — with predictable per-server pricing and deploy-correlated repair playbooks.
| Topic | Reflex | Datadog |
|---|---|---|
| Total cost of ownership (typical stack) | One subscription covers server operations, Git-driven deploys with health gating and rollback where your tier allows, uptime-style checks, and Brain-led remediation — see Pricing for current tiers. | Teams often pay for a server panel, separate deploy automation, monitoring/alerting, and ad-hoc incident tooling — each with its own renewal, integration work, and on-call runbook. |
| Primary focus | Detect, diagnose, repair, verify — Brain playbooks + reflexd agent | Metrics, logs, traces, APM, dashboards across the stack |
| Automated remediation | Built-in playbooks (PHP-FPM, disk, queues, nginx) with audit trails | Alerting and workflows; remediation typically layered via other tools |
| Pricing shape | Per-server tiers — Pro ~£35/server at 10 hosts (see Pricing) | Per-host modules stack (infra ~$15/host, APM extra) — costs grow with cardinality |
| At 10 servers (illustrative) | £29/server/mo — detect, diagnose, auto-fix, learn | Infra + APM often ~$460/mo — observe and alert only |
| Distributed tracing | Deploy markers + service health — not microservice flame graphs | Industry-leading APM and service maps at scale |
| When Datadog fits | — | 50+ hosts, microservices, dedicated SRE team, deep APM budget |
| When Reflex fits | Small fleets who want fewer 3am SSH sessions and one ops subscription | — |
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