Staxly

Loops vs Datadog

Email marketing for SaaS — loops, transactional, campaigns in one
vs. Enterprise cloud monitoring — infra, APM, logs, RUM, security, LLM

Loops websiteDatadog website

Pricing tiers

Loops

Free
1,000 subscribed contacts. 4,000 sends/month. All features. Loops footer on emails.
Free
Paid — 1.5k
1,500 contacts. Unlimited sends. No footer.
$15/mo
Paid — 5k
5,000 contacts. Unlimited sends.
$49/mo
Paid — 10k
10,000 contacts.
$99/mo
Paid — 25k
25,000 contacts.
$199/mo
Paid — 50k
50,000 contacts.
$349/mo
Custom
>100k contacts — contact sales.
Custom
Loops website

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
Datadog website

Free-tier quotas head-to-head

Comparing free on Loops vs free on Datadog.

MetricLoopsDatadog
No overlapping quota metrics for these tiers.

Features

Loops · 12 features

  • API KeysScoped keys for testing vs production.
  • Audiences (Segments)Filter contacts by properties + event behavior.
  • Campaign AnalyticsOpen/click/unsubscribe rates, heatmaps, A/B significance.
  • CampaignsOne-off broadcasts to audience segments. Schedule + A/B test subject.
  • ContactsContact records with custom properties (strings, numbers, booleans, dates).
  • Email EditorVisual block-based + Markdown + HTML modes.
  • EventsSend events to trigger loops/journeys or filter audiences.
  • Loops (Automations)Event-triggered automation flows with delays + conditions.
  • Mailing ListsOpt-in lists with subscribe/unsubscribe preferences per list.
  • Template LibraryPre-built templates for SaaS use cases (onboarding, digest, launch).
  • Transactional APISend transactional emails (receipts, password resets) via /transactional endpoin
  • WebhooksSubscribe to contact/event changes.

Datadog · 19 features

  • APMDistributed tracing + service catalog + code hotspots.
  • Application SecurityRuntime attack detection, threat intelligence, IAST.
  • CI VisibilityTest + pipeline performance analytics.
  • Cloud SIEMSecurity events correlation, detection rules, audit trails.
  • Continuous ProfilerAlways-on CPU, memory, lock profiling in production.
  • DashboardsPre-built + custom dashboards.
  • Database MonitoringSlow query detection for Postgres, MySQL, Mongo, Oracle, SQL Server.
  • Incident ManagementBuilt-in incident response with postmortems.
  • Infrastructure MonitoringHost, container, k8s metrics. 700+ integrations. Live process + container maps.
  • LLM ObservabilityOpenAI, Anthropic, etc. trace + cost + prompt eval.
  • Log ManagementIngest any logs, structured or raw. Pipelines, parsing, archives to S3.
  • MonitorsAnomaly, forecast, outlier, composite monitors.
  • Network Performance MonitoringPacket-level analysis, flow monitoring.
  • NotebooksRunbook-style dashboards with queries + docs.
  • Real User MonitoringFrontend performance, JS errors, user sessions, Core Web Vitals.
  • Serverless MonitoringAWS Lambda, Google Cloud Functions, Azure Functions observability.
  • Service CatalogService inventory with ownership + documentation.
  • SyntheticsSynthetic HTTP + browser tests, API tests, mobile tests.
  • Workflow AutomationNo-code workflows triggered by events.

Developer interfaces

KindLoopsDatadog
CLIDatadog Agent
SDK@loops/loops, loops-pydd-trace-dotnet, dd-trace-go, dd-trace-java, dd-trace-js (RUM), dd-trace (Node), ddtrace (Python), ddtrace (Ruby)
RESTLoops REST APIDatadog REST API
MCPDatadog MCP
OTHERWebhooksOpenTelemetry (OTLP), Webhooks
Staxly is an independent catalog of developer platforms. Outbound links to Loops and Datadog are plain references to their official websites. Pricing is verified against vendor pages at publication time — reconfirm before buying.

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