Amplitude charges per MTU — costs scale with your user base, not your plan tier. Herald is flat per account. One ships dashboards for analyst teams; the other ships a Monday briefing for founders.
Amplitude's free tier caps at 50k MTUs; beyond that you're on a paid plan that scales with monthly tracked users. A growth spike can double your bill before you notice. Herald is flat — Starter is $29/mo regardless of how many users you have or how many events they generate.
Amplitude is a workspace product: PMs, analysts, and data teams configure charts, build funnels, author experiment reports. Herald is a briefing product: Monday morning, you read three minutes of prose that names specific users and suggests specific actions. Different tool for a different job.
Amplitude's strength is product-event depth — funnels, retention, pathways. Herald correlates product events with Stripe revenue, Intercom and Zendesk support threads, sales-call transcripts, and Linear issues, surfacing connections a dashboard would miss — like the week support volume rose as MRR held flat.
Amplitude Cloud is multi-tenant. Herald gives each Product its own Cloudflare Durable Object with its own SQLite database — cross-tenant queries can't exist by construction, not just by policy.
| Dimension | Herald | Amplitude |
|---|---|---|
| Pricing model | Flat per account | Per MTU, after free tier |
| Starting price | Free · $29/mo (Starter) | Free up to 50k MTUs · paid plans scale by MTU |
| Primary output | Weekly briefing + chat | Dashboards, charts, experiments |
| Primary user | Founder or solo PM | PM teams and data analysts |
| Cross-signal ingest | Native (Stripe, Intercom, Linear, calls, email) | Product events; integrations via ETL or CDP |
| Ask-anything chat | Native, sandboxed SQL | Ask Amplitude (paid AI add-on) |
| Experiments / feature flags | No | Yes (Amplitude Experiment) |
| Data location | Your own Durable Object | Shared Amplitude Cloud |
Pricing figures as listed on each vendor's public site as of 2026.
If you have a dedicated PM team and data analyst authoring funnels, retention cohorts, and experiment reports — Amplitude's UI is built for that workflow and Herald is not.
If you need session replay, heatmaps, feature flags, or A/B experiments in one platform, Amplitude covers that surface. Herald focuses on the weekly briefing and the chat agent.
If you're already deep in Amplitude with instrumented dashboards that stakeholders depend on, the migration cost is real. Herald is easiest to adopt before the analytics stack is entrenched.
Connect Stripe and drop the Herald SDK, send events this week, read Monday's briefing. Hobby is free, no card required. Run them side by side — Amplitude for your analyst workflow, Herald for Monday morning.
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