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Home/Compare/PostHog vs Postmark

PostHog vs Postmark

A side-by-side comparison of pricing, plans, and recent product updates. Pricing data last refreshed May 15, 2026.

PostHog

How developers build successful products.

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Category
analytics
Plans tracked
2
Entry price
Free
Free plan?
Yes
See full PostHog pricing & changelog →

Postmark

Reliable transactional email.

Visit →
Category
email
Plans tracked
4
Entry price
$15/mo
Free plan?
Yes
See full Postmark pricing & changelog →

Plan-by-plan pricing

PostHog

Free

PostHog

Free
  • Generous monthly free tier
  • Community support
  • 1 project, 1-year data retention
  • Unlimited team members
  • Usage capped at free tier limits
  • + 1 more

Pay-as-you-go

PostHog

Free
  • Usage-based pricing after free tier
  • Set billing limits per product
  • Standard support (email, Slack-based over $2k/mo)
  • 6 projects, 7-year data retention
  • Unlimited team members
  • + 1 more

Postmark

Free

Postmark

Free
  • Test your integration with 100 emails/month
  • No overages allowed in this plan
  • Perfect for testing and side projects with low volume
  • Up to 10 custom sending domains
  • Up to 10 servers
  • + 1 more

Basic

Postmark

$15/mo
  • Extra emails @ $1.80 / 1,000
  • Industry-leading deliverability rates & speed
  • 45-day data retention
  • 5 Custom sending domains
  • Unlimited emails/day
  • + 1 more

Pro

Postmark

$16.5/mo
  • Extra emails @ $1.30 / 1,000
  • Customizable data retention up to 365 days (45-day default)
  • 10 Custom sending domains
  • Inbound email processing
  • Unlimited emails/day
  • + 1 more

Platform

Postmark

$18/mo
  • Extra emails @ $1.20 / 1,000
  • Customizable data retention up to 365 days (45-day default)
  • Unlimited Custom sending domains
  • Inbound email processing
  • Unlimited users
  • + 1 more

PostHog vs Postmark FAQ

PostHog vs Postmark: which is cheaper?
PostHog starts at an unpublished tier, while Postmark starts at $15/mo. TrackRival snapshots both daily as plan pages change.
Does PostHog or Postmark have a free plan?
Both PostHog and Postmark show a free plan in the latest snapshot, so the plan tables above are the fastest way to compare limits.
Is PostHog a good analytics alternative to Postmark?
PostHog is tracked in analytics, while Postmark overlaps for similar buyers. Use the changelog section below to compare shipping cadence before you choose.
How often is this PostHog vs Postmark comparison updated?
TrackRival refreshes pricing snapshots daily and appends new changelog entries whenever either product ships a release.

Recent product updates

What each team shipped most recently.

PostHog

  • May 8, 2026
    The best MCP servers for developers at startups

    PostHog highlights key MCP servers for startup workflows like debugging, enabling agents to pull data from Linear, GitHub, Vercel, and PostHog in a single prompt.

  • May 7, 2026
    4,063 errors closed without a human opening PostHog – here's what we learned

    PostHog's AI agents autonomously resolved over 4,000 errors and suppressed 1,750 more last month, primarily through automated fixes and noise filtering.

  • May 5, 2026
    PostHog Code and the self-driving product

    PostHog Code beta launches a desktop app for coding agents that enable self-driving product development.

See all PostHog updates →

Postmark

No recent updates tracked.

See all Postmark updates →

Which should you pick?

Both PostHog and Postmark serve overlapping audiences (PostHog in analytics, Postmark in email).

  • Choose PostHog if you value: how developers build successful products.
  • Choose Postmark if you value: reliable transactional email.
  • Subscribe to TrackRival if you want to be notified whenever either of them changes pricing or ships a major update — so you can react before your competitors do.

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