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Technology · head to head

PostHog vs Sanity

PostHog logo

PostHog

Technology

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

From
Free
Rated
-
Full reviewWebsite
Sanity logo

Sanity

API Management

Headless CMS with real-time collaborative editing and structured content APIs

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; Sanity free plan limited to 10,000 documents and 100GB assets
  • They diverge on capability: PostHog covers Product analytics, Sanity covers Content API.

Where they differ

Only the attributes on which PostHog and Sanity actually diverge.

Attributes where PostHog and Sanity differ
AttributePostHogSanity
Pricing modelusage-basedsubscription
PlatformsWeb, Ios, Android, ApiWeb
CategoryTechnologyAPI Management
Founded20202011

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 Sanity

  • Content API
  • Collaborative editing
  • Structured content
  • Webhooks
  • Third-party services
  • GROQ query language
  • Cloud support
  • JavaScript SDK support

What people use each for

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

PostHog

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

Sanity

  • Headless CMS for structured content managementnot PostHog
  • Collaborative content editing with real-time multiplayer supportnot PostHog
  • API-driven content delivery with GROQ query languagenot 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

Sanity

  • Free plan limited to 10,000 documents and 100GB assets
  • Free plan supports only public datasets
  • Growth plan capped at 50 seats maximum
  • Private datasets, scheduled drafts, and comments/tasks require paid plans
  • Annual billing unavailable for Growth plan; Enterprise-only

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

Sanity

Free

No published plan breakdown. See the Sanity review.

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 Sanity if

  • You need content api.
  • You want to start without paying.
  • You also want collaborative editing.
Sanity review

Questions people ask

Is PostHog or Sanity better?
Neither clearly leads. PostHog starts at Free and Sanity at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, PostHog or Sanity?
PostHog starts at Free and Sanity at Free.
Does PostHog or Sanity run on more platforms?
PostHog runs on Web, Ios, Android, Api. Sanity runs on Web.
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 Sanity is typically brought in for.
What can PostHog do that Sanity cannot?
PostHog covers Product analytics, Session recording, Feature flags, A/B testing. Sanity covers Content API, Collaborative editing, Structured content, Webhooks.
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