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Communication · head to head

Courier vs PostHog

Courier logo

Courier

Communication

Notification infrastructure API for sending messages across channels

From
Free
Rated
-
Full reviewWebsite
PostHog logo

PostHog

Technology

The single platform to analyze, test, observe, and deploy new features

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Courier enterprise-only features like RBAC and EU data residency require a custom sales conversation rather than a published plan.; PostHog the free tier covers 1M events, 5K web session recordings and 2.5K mobile recordings per month before usage-based billing starts
  • They diverge on capability: Courier covers Multi-channel sending, PostHog covers Product analytics.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Courier and PostHog actually diverge.

Attributes where Courier and PostHog differ
AttributeCourierPostHog
Platformsweb, apiWeb, Ios, Android, Api
CategoryCommunicationTechnology
FoundedUnknown2020

Identical on both: starting price (Free), pricing model (usage-based), free tier (Yes), user rating (Not yet rated).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Courier

  • Multi-channel sending
  • Journeys and broadcasts
  • Digest and batching
  • AI translations
  • MCP server and CLI
  • Role-based access control

Only in PostHog

  • Product analytics
  • Session recording
  • Feature flags
  • A/B testing
  • Heatmaps
  • SQL access
  • Data warehouse
  • Apps platform

What people use each for

The jobs each tool is most often brought in to do.

Courier

  • Sending notifications across email, SMS, and push from one APInot PostHog
  • Building automated notification journeysnot PostHog
  • Digesting multiple alerts into a single messagenot PostHog
  • Localizing notification content with AI translationnot PostHog

PostHog

  • Product analyticsnot Courier
  • Feature experimentationnot Courier
  • User behavior trackingnot Courier
  • A/B testingnot Courier
  • Debug production issuesnot Courier

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Courier

  • Enterprise-only features like RBAC and EU data residency require a custom sales conversation rather than a published plan.
  • Pay-as-you-go per-send pricing on Business can become costly at very high volume compared to flat committed pricing elsewhere.
  • The free Developer tier is capped at 10,000 sends per month, which is limiting for growing production apps.

PostHog

  • The free tier covers 1M events, 5K web session recordings and 2.5K mobile recordings per month before usage-based billing starts
  • Accounts without a card on file are limited to 1 project; adding one raises it to 6
  • Data retention is 1 year until a card is added, which extends it to 7 years
  • Support is community-only until the account is on a paid plan
  • Error tracking is capped at 100K exceptions and surveys at 1500 responses per month on the free tier

Pricing, plan by plan

Courier

Free
  • DeveloperFree
    • 10,000 sends/month
    • Journeys and broadcasts
    • MCP server, CLI, and SDKs
  • Business$undefined/month
    • $0.005 per send pay-as-you-go
    • AI translations
    • AI agent node
  • Enterprise$undefined/month
    • Volume discounts
    • Dedicated Slack channel
    • Role-based access control

PostHog

Free
  • FreeFree
    • 1M events/month
    • 5K sessions/month
    • Unlimited users
  • Paid$undefined/month
    • $0.00031/event
    • $0.005/session
    • Advanced permissions
  • Enterprise$undefined/month
    • SAML SSO
    • Advanced security
    • Dedicated support

Which should you pick?

Choose Courier if

  • You need multi-channel sending.
  • You want to start without paying.
  • You work on web, api.
  • You also want journeys and broadcasts.
Courier review

Choose PostHog if

  • You need product analytics.
  • You want to start without paying.
  • You work on Web, Ios, Android, Api.
  • You also want session recording.
PostHog review

Questions people ask

Is Courier or PostHog better?
Neither clearly leads. Courier starts at Free and PostHog at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Courier or PostHog?
Courier starts at Free and PostHog at Free.
Does Courier or PostHog run on more platforms?
Courier runs on web, api. PostHog runs on Web, Ios, Android, Api.
Can I use Courier for free?
Both have a free tier, so you can try either at no cost before committing.
What is Courier best used for?
Courier is most often used for sending notifications across email, sms, and push from one api, building automated notification journeys, digesting multiple alerts into a single message, localizing notification content with ai translation. Of those, sending notifications across email, sms, and push from one api and building automated notification journeys are not what PostHog is typically brought in for.
What can Courier do that PostHog cannot?
Courier covers Multi-channel sending, Journeys and broadcasts, Digest and batching, AI translations. PostHog covers Product analytics, Session recording, Feature flags, A/B testing.

Answered from the vendors’ own pages

Courier: What does Courier cost?

Courier has three plans: Developer is free for 10,000 sends per month, Business is pay-as-you-go at $0.005 per send, and Enterprise is custom-priced with volume discounts.

Source
PostHog: What does PostHog's free tier include per month?

PostHog free tier includes: 1M analytics events, 5K session replays, 1M feature flag requests, 100K error tracking exceptions, 1,500 survey responses, 1M data warehouse rows, 10K data pipeline events, 100K AI observability events, 500 PostHog AI credits, 10K workflow messages, and 10GB log ingestion. Source: https://posthog.com/pricing

Source
Courier: Is there a free plan, and what are its limits?

Yes, the Developer plan is free and includes 10,000 notification sends per month along with journeys, broadcasts, the MCP server, CLI, SDKs, and email support.

Source
PostHog: How much data retention does PostHog provide on paid plans?

PostHog free tier provides 1-year data retention. Pay-as-you-go plans offer 7-year data retention across all projects, enabling longer historical analysis. Source: https://posthog.com/pricing

Source
Courier: How is usage metered?

Courier bills based on the number of notifications sent, not on team size or number of channels used, with Business plan sends charged at $0.005 each.

Source
PostHog: What percentage of PostHog users stay on the free tier?

PostHog states that 97% of companies use PostHog for free, indicating extensive free tier adoption. However, specific per-unit pricing rates for overages on paid plans are not published. Source: https://posthog.com/pricing

Source
PostHog: When does PostHog provide priority support on paid plans?

PostHog provides email or Slack support for accounts exceeding $2,000/month on pay-as-you-go plans. Specific response times and support SLAs are not detailed on their pricing page. Source: https://posthog.com/pricing

Source
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