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Software · head to head

PostHog vs Swagger/OpenAPI

PostHog logo

PostHog

Software

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

From
Free
Rated
-
Full reviewWebsite
S

Swagger/OpenAPI

Software

API specification and documentation framework using OpenAPI standard

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; Swagger/OpenAPI the OpenAPI Specification itself is licensed under Apache License 2.0 and free to use; SwaggerHub is a separate paid tool built on top of it
  • They diverge on capability: PostHog covers Product analytics, Swagger/OpenAPI covers OpenAPI Specification.

Where they differ

Only the attributes on which PostHog and Swagger/OpenAPI actually diverge.

Attributes where PostHog and Swagger/OpenAPI differ
AttributePostHogSwagger/OpenAPI
Pricing modelusage-basedfreemium
PlatformsWeb, Ios, Android, ApiWeb, CLI, Desktop
Founded20202001

Identical on both: starting price (Free), free tier (Yes), user rating (Not yet rated), category (Unknown).

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 Swagger/OpenAPI

  • OpenAPI Specification
  • Interactive Documentation
  • Code Generation
  • Jenkins
  • IDE plugins
  • Web support
  • CLI support
  • Desktop support

Both cover

  • GitHub
  • GitLab

What people use each for

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

PostHog

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

Swagger/OpenAPI

  • API Developmentnot PostHog
  • API Gatewaynot PostHog
  • API Testingnot PostHog
  • API Documentationnot PostHog
  • Microservicesnot 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

Swagger/OpenAPI

  • The OpenAPI Specification itself is licensed under Apache License 2.0 and free to use; SwaggerHub is a separate paid tool built on top of it

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

Swagger/OpenAPI

Free
  • Open SourceFree
    • OpenAPI specification
    • Community tools
  • SwaggerHub FreeFree
    • Cloud editor
    • API mocking
    • API testing
  • SwaggerHub Pro$75/monthly
    • Team collaboration
    • Advanced mocking
    • Analytics

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 Swagger/OpenAPI if

  • You need openapi specification.
  • You want to start without paying.
  • You work on Web, CLI, Desktop.
  • You also want interactive documentation.
Swagger/OpenAPI review

Questions people ask

Is PostHog or Swagger/OpenAPI better?
Neither clearly leads. PostHog starts at Free and Swagger/OpenAPI at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, PostHog or Swagger/OpenAPI?
PostHog starts at Free and Swagger/OpenAPI at Free.
Does PostHog or Swagger/OpenAPI run on more platforms?
PostHog runs on Web, Ios, Android, Api. Swagger/OpenAPI runs on Web, CLI, Desktop.
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 Swagger/OpenAPI is typically brought in for.
What can PostHog do that Swagger/OpenAPI cannot?
PostHog covers Product analytics, Session recording, Feature flags, A/B testing. Swagger/OpenAPI covers OpenAPI Specification, Interactive Documentation, Code Generation, Jenkins. Both handle GitHub, GitLab.
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