Datadog vs Knock
Enterprise cloud monitoring — infra, APM, logs, RUM, security, LLM
vs. Notifications-as-a-service: in-app feeds, email, push, SMS, chat via one API
Pricing tiers
Datadog
Serverless Monitoring
$0.13 per month per 1M invocations.
$0 base (usage-based)
Free
Up to 5 hosts, 1-day metric retention. Community edition of Agent.
Free
Logs Ingestion
$0.10 per ingested/scanned GB per month.
$0 base (usage-based)
Logs Standard Index
$1.70 per million log events/month.
$0 base (usage-based)
Logs Flex Storage
$0.05 per million events stored/month.
$0 base (usage-based)
Infra Pro
Per host per month (annual billing). 15-month metric retention, 500+ integrations.
$15/mo
Infra Enterprise
Per host. Advanced features, Network Flow Monitoring.
$23/mo
APM
Per host (with Infra attached). Distributed tracing.
$31/mo
APM Pro
Per host. Continuous Profiler + Data Streams Monitoring.
$35/mo
APM Enterprise
Per host. App & API Protection + more.
$40/mo
Enterprise
Volume discounts, dedicated CSM, regional data residency.
Custom
Knock
Developer
Free forever. 10K messages, 500 guide users, 500 AI credits/month.
$0 base (usage-based)
Starter
$250/mo. 50K messages, 2.5K guide users, 2K AI credits. Remove branding.
$250/mo
Enterprise
Custom pricing. White-label, i18n, data warehouse, Datadog, SCIM, SAML, HIPAA/BAA.
Custom
Free-tier quotas head-to-head
Comparing free on Datadog vs starter on Knock.
| Metric | Datadog | Knock |
|---|---|---|
| guide users | — | 2500 users |
| guide users overage | — | $0.05/user USD/user |
| messages monthly | — | 50000 messages/mo |
| messages overage | — | $0.005/message USD/message |
Features
Datadog · 19 features
- APM — Distributed tracing + service catalog + code hotspots.
- Application Security — Runtime attack detection, threat intelligence, IAST.
- CI Visibility — Test + pipeline performance analytics.
- Cloud SIEM — Security events correlation, detection rules, audit trails.
- Continuous Profiler — Always-on CPU, memory, lock profiling in production.
- Dashboards — Pre-built + custom dashboards.
- Database Monitoring — Slow query detection for Postgres, MySQL, Mongo, Oracle, SQL Server.
- Incident Management — Built-in incident response with postmortems.
- Infrastructure Monitoring — Host, container, k8s metrics. 700+ integrations. Live process + container maps.
- LLM Observability — OpenAI, Anthropic, etc. trace + cost + prompt eval.
- Log Management — Ingest any logs, structured or raw. Pipelines, parsing, archives to S3.
- Monitors — Anomaly, forecast, outlier, composite monitors.
- Network Performance Monitoring — Packet-level analysis, flow monitoring.
- Notebooks — Runbook-style dashboards with queries + docs.
- Real User Monitoring — Frontend performance, JS errors, user sessions, Core Web Vitals.
- Serverless Monitoring — AWS Lambda, Google Cloud Functions, Azure Functions observability.
- Service Catalog — Service inventory with ownership + documentation.
- Synthetics — Synthetic HTTP + browser tests, API tests, mobile tests.
- Workflow Automation — No-code workflows triggered by events.
Knock · 13 features
- AI Agents — Autonomous notification drafting & workflow generation.
- Batch + Digest — Group notifications into digests on schedule or window.
- Chat — Slack, Microsoft Teams, Discord.
- Email — Send via SendGrid/Postmark/Resend/Mailgun/AWS SES as relays.
- Guides — In-product messaging, announcements, modals, banners.
- i18n / Localization — Translate templates by user locale.
- In-App Feed — Notification inbox with React/Vue/iOS/Android drop-in components.
- Multi-tenancy — Per-tenant branding, preferences, quiet hours.
- Outbound Webhooks — Subscribe to delivery events.
- Preferences — User + tenant preference center with granular controls.
- Push — iOS (APNs), Android (FCM), Expo, Web Push.
- SMS — Twilio, MessageBird, Telnyx, Vonage as providers.
- Workflows — Visual notification orchestration (branch, batch, delay, throttle).
Developer interfaces
| Kind | Datadog | Knock |
|---|---|---|
| CLI | Datadog Agent | Knock CLI |
| SDK | dd-trace-dotnet, dd-trace-go, dd-trace-java, dd-trace-js (RUM), dd-trace (Node), ddtrace (Python), ddtrace (Ruby) | knockapi (Python), knockapi (Ruby), knock-elixir, knock-go, knock-java, @knocklabs/node, @knocklabs/react |
| REST | Datadog REST API | Knock REST API |
| MCP | Datadog MCP | Knock MCP Server |
| OTHER | OpenTelemetry (OTLP), Webhooks | Outbound Webhooks |
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