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Technology · head to head

PostHog vs Turbopack

PostHog logo

PostHog

Technology

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

From
Free
Rated
-
Full reviewWebsite
Turbopack logo

Turbopack

Web Development

Incremental bundler for JavaScript written in Rust

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: PostHog the free tier covers 1M events, 5K web session recordings and 2.5K mobile recordings per month before usage-based billing starts; Turbopack effectively coupled to Next.js; using it standalone is not the supported path
  • They diverge on capability: PostHog covers Product analytics, Turbopack covers Incremental computation.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which PostHog and Turbopack actually diverge.

Attributes where PostHog and Turbopack differ
AttributePostHogTurbopack
Pricing modelusage-basedOpen source, no licence fee
PlatformsWeb, Ios, Android, ApiLinux, macOS, Windows
CategoryTechnologyWeb Development
Founded2020Unknown

Identical on both: starting price (Free), 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 PostHog

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

Only in Turbopack

  • Incremental computation
  • Written in Rust
  • Next.js integration
  • Fast refresh

What people use each for

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

PostHog

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

Turbopack

  • Large Next.js applications where rebuild time is the daily costnot PostHog
  • Teams already on Vercel’s stack wanting faster local feedbacknot PostHog
  • Migrating off webpack within Next.js without changing frameworksnot PostHog

Where each one falls short

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

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

Turbopack

  • Effectively coupled to Next.js; using it standalone is not the supported path
  • Younger than the alternatives, and ecosystem plugin support is narrower than webpack’s
  • Benchmark claims have been contested publicly, so measure on your own project rather than trusting headline numbers
  • Being Vercel-driven ties its roadmap to one company’s framework priorities

Pricing, plan by plan

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

Turbopack

Free
  • TurbopackFree
    • Full functionality
    • Commercial use permitted
    • Community support

Which should you pick?

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

Choose Turbopack if

  • You need incremental computation.
  • You want to start without paying.
  • You work on Linux, macOS, Windows.
  • You also want written in rust.
Turbopack review

Questions people ask

Is PostHog or Turbopack better?
Neither clearly leads. PostHog starts at Free and Turbopack at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, PostHog or Turbopack?
PostHog starts at Free and Turbopack at Free.
Does PostHog or Turbopack run on more platforms?
PostHog runs on Web, Ios, Android, Api. Turbopack runs on Linux, macOS, Windows.
Can I use PostHog for free?
Both have a free tier, so you can try either at no cost before committing.
What is PostHog best used for?
PostHog is most often used for product analytics, feature experimentation, user behavior tracking, a/b testing. Of those, product analytics and feature experimentation are not what Turbopack is typically brought in for.
What can PostHog do that Turbopack cannot?
PostHog covers Product analytics, Session recording, Feature flags, A/B testing. Turbopack covers Incremental computation, Written in Rust, Next.js integration, Fast refresh.

Answered from the vendors’ own pages

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
Turbopack: Is Turbopack free?

Yes, open source from Vercel.

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
Turbopack: Can I use Turbopack without Next.js?

Not really. It is developed as the Next.js bundler, and standalone use is not the supported path.

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
Turbopack: Is Turbopack faster than Vite?

It depends on the project, and published comparisons have been disputed by both sides. Measure on your own codebase rather than relying on headline figures.

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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