Staxly

Amplitude vs Helicone

Digital analytics + experimentation + CDP
vs. Open-source LLM observability — 1-line integration via proxy

Amplitude websiteHelicone website

Pricing tiers

Amplitude

Starter (Free)
10K Monthly Tracked Users, 10M events/mo. Session Replay + unlimited feature flags + Web Experimentation + AI Feedback included.
Free
Plus
$49/mo (annual). Up to 300K MTUs + 25M events. Unlimited product analytics, behavioral cohorts, feature tagging, custom audiences.
$49/mo
Growth
Custom. Causal insights, Feature Experimentation, real-time streaming, predictive audiences.
Custom
Enterprise
Custom. Cross-product analysis, advanced data controls, mutual exclusion groups, multi-armed bandit.
Custom
Amplitude website

Helicone

Hobby (Free)
10,000 requests/month. 7-day retention. 1 seat. Basic monitoring.
Free
Startup Discount
<2 years, <$5M funding: 50% off first year.
$0 base (usage-based)
Self-Hosted (OSS)
MIT-licensed. Run Helicone yourself for free.
$0 base (usage-based)
Pro
$79/month. 10k free + usage-based. Unlimited seats. Alerts, reports, HQL query language. 1-month retention.
$79/mo
Team
$799/month. 5 orgs, SOC-2 + HIPAA compliance, dedicated Slack, 3-month retention.
$799/mo
Enterprise
Custom MSA, SAML SSO, on-prem deploy, bulk discounts, forever retention.
Custom
Helicone website

Free-tier quotas head-to-head

Comparing starter on Amplitude vs hobby on Helicone.

MetricAmplitudeHelicone
No overlapping quota metrics for these tiers.

Features

Amplitude · 13 features

  • AI Feedback (Asking)Natural language questions over your Amplitude data.
  • Amplitude CDPCustomer Data Platform — identify, segment, sync to 150+ destinations.
  • Causal InsightsAI identifies why a metric changed — root cause.
  • Cross-Product AnalysisAnalyze across multiple apps/products in the same org.
  • Data GovernanceTaxonomies, schemas, approvals, category management.
  • Data Warehouse SyncSync data to/from Snowflake, BigQuery, Redshift, Databricks.
  • Feature ExperimentationServer-side / SDK-level experiments. Growth+.
  • Feature FlagsTargeting rules + rollouts. Unlimited in Starter.
  • North Star MetricPre-built dashboards for key metric tracking.
  • Predictive AudiencesML-based forecasting of user behavior.
  • Product AnalyticsCore events + funnels + retention + segmentation.
  • Session ReplayPixel-perfect user session recording + privacy masking.
  • Web ExperimentationA/B test visual changes on your site without deploy.

Helicone · 16 features

  • AlertsThresholds on error rate, latency, cost, usage. Pro+.
  • Async LoggingLog AFTER the LLM call via SDK — zero added latency.
  • Cost TrackingAutomatic cost calculation per call by provider/model.
  • DashboardRequest tables, aggregate metrics, cost breakdowns.
  • EvaluatorsLLM-as-judge + custom evaluators on runs.
  • ExperimentsA/B test different models/prompts.
  • HQL (SQL over traces)Query your logged data with SQL. Pro+.
  • PII RedactionAutomatically scrub emails, credit cards, etc. from logs.
  • Prompt CachingCache identical requests → save money.
  • Prompts & VersionsStore + version + A/B test prompts.
  • Proxy Mode1-line integration via base URL swap. Captures all requests.
  • Rate LimitingPer-user + per-key rate limit policies.
  • ReportsScheduled email reports with KPIs.
  • Self-HostingDocker + k8s deployment.
  • SessionsGroup related calls (chat sessions, agent runs).
  • User MetricsPer-user cost + usage segmentation.

Developer interfaces

KindAmplitudeHelicone
CLIHelicone CLI
SDKamplitude-analytics-python, @amplitude/analytics-react-native, amplitude-android, amplitude-js / browser-sdk, amplitude-node, AmplitudeSwift (iOS)helicone (npm), helicone-python
RESTAmplitude HTTP API v2, Batch Event API, Export APIAsync Logging API, Helicone Proxy, Query API (HQL)
OTHERData Destinations (webhooks)Helicone Dashboard, Webhooks
Staxly is an independent catalog of developer platforms. Outbound links to Amplitude and Helicone are plain references to their official websites. Pricing is verified against vendor pages at publication time — reconfirm before buying.

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