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Home/Compare/PostHog vs FusionAuth

PostHog vs FusionAuth

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 →

FusionAuth

Downloadable and hosted auth for engineering teams.

Visit →
Category
auth
Plans tracked
—
Entry price
—
Free plan?
—
See full FusionAuth 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

FusionAuth

Pricing data is being collected.

PostHog vs FusionAuth FAQ

PostHog vs FusionAuth: which is cheaper?
TrackRival snapshots both daily - see the plan tables above for the latest tracked tiers.
Does PostHog or FusionAuth have a free plan?
PostHog shows a free plan in the latest snapshot, while FusionAuth does not.
Is PostHog a good analytics alternative to FusionAuth?
PostHog is tracked in analytics, while FusionAuth overlaps for similar buyers. Use the changelog section below to compare shipping cadence before you choose.
How often is this PostHog vs FusionAuth 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 →

FusionAuth

No recent updates tracked.

See all FusionAuth updates →

Which should you pick?

Both PostHog and FusionAuth serve overlapping audiences (PostHog in analytics, FusionAuth in auth).

  • Choose PostHog if you value: how developers build successful products.
  • Choose FusionAuth if you value: downloadable and hosted auth for engineering teams.
  • 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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