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Testing · head to head

Detox vs PostHog

Detox logo

Detox

Testing

Open source end-to-end testing framework for React Native apps, built and maintained by Wix

From
Free
Rated
-
Full reviewWebsite
PostHog logo

PostHog

Technology

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

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Detox it only benefits React Native apps; teams with native iOS, native Android, or non-React-Native hybrid apps get no advantage from its core gray-box synchronisation design and should use Appium instead.; PostHog the free tier covers 1M events, 5K web session recordings and 2.5K mobile recordings per month before usage-based billing starts
  • They diverge on capability: Detox covers Gray-box synchronisation, PostHog covers Product analytics.
  • Prices and features above were last checked on 1 September 2026.

Where they differ

Only the attributes on which Detox and PostHog actually diverge.

Attributes where Detox and PostHog differ
AttributeDetoxPostHog
Pricing modelOpen source, no licence feeusage-based
PlatformsiOS, AndroidWeb, Ios, Android, Api
CategoryTestingTechnology
FoundedUnknown2020

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 Detox

  • Gray-box synchronisation
  • React Native native integration
  • Real device and simulator support
  • Jest integration
  • Element matching and actions
  • CI-friendly execution

Only in PostHog

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

What people use each for

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

Detox

  • A React Native team wanting end-to-end tests that reliably wait for real app state rather than fixed sleep delaysnot PostHog
  • A CI pipeline running mobile end-to-end tests that need to be genuinely reliable, not flaky, to avoid blocking merges on false failuresnot PostHog
  • A team migrating from Appium-based React Native testing wanting tighter synchronisation with the app's async internalsnot PostHog
  • An engineering organisation wanting a free, actively used-in-production framework rather than a lightly maintained side projectnot PostHog

PostHog

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

Where each one falls short

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

Detox

  • It only benefits React Native apps; teams with native iOS, native Android, or non-React-Native hybrid apps get no advantage from its core gray-box synchronisation design and should use Appium instead.
  • As a single-company open source project, its long-term maintenance priority is tied to Wix's own continued internal use of React Native and Detox, which is a real, if currently low, dependency risk.
  • Initial setup, particularly around build configuration for iOS and Android, has a steeper learning curve than some competing frameworks, with configuration errors being a common source of early frustration.
  • Its community and plugin ecosystem is smaller than Appium's broader, foundation-governed mobile automation ecosystem.
  • Debugging synchronisation issues when the gray-box mechanism misjudges app idle state can itself be a non-trivial troubleshooting exercise, ironically producing the same kind of flaky-test debugging it is designed to avoid.

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

Pricing, plan by plan

Detox

Free
  • DetoxFree
    • Full functionality, no usage limits
    • Community support via GitHub
    • Built and maintained by Wix for its own internal React Native testing needs

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

Which should you pick?

Choose Detox if

  • You need gray-box synchronisation.
  • You want to start without paying.
  • You work on iOS, Android.
  • You also want react native native integration.
Detox review

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

Questions people ask

Is Detox or PostHog better?
Neither clearly leads. Detox starts at Free and PostHog at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Detox or PostHog?
Detox starts at Free and PostHog at Free.
Does Detox or PostHog run on more platforms?
Detox runs on iOS, Android. PostHog runs on Web, Ios, Android, Api.
Can I use Detox for free?
Both have a free tier, so you can try either at no cost before committing.
What is Detox best used for?
Detox is most often used for a react native team wanting end-to-end tests that reliably wait for real app state rather than fixed sleep delays, a ci pipeline running mobile end-to-end tests that need to be genuinely reliable, not flaky, to avoid blocking merges on false failures, a team migrating from appium-based react native testing wanting tighter synchronisation with the app's async internals, an engineering organisation wanting a free, actively used-in-production framework rather than a lightly maintained side project. Of those, a react native team wanting end-to-end tests that reliably wait for real app state rather than fixed sleep delays and a ci pipeline running mobile end-to-end tests that need to be genuinely reliable, not flaky, to avoid blocking merges on false failures are not what PostHog is typically brought in for.
What can Detox do that PostHog cannot?
Detox covers Gray-box synchronisation, React Native native integration, Real device and simulator support, Jest integration. PostHog covers Product analytics, Session recording, Feature flags, A/B testing.

Answered from the vendors’ own pages

Detox: Is Detox owned by Wix?

Yes, it is built and maintained by Wix as an open source project, used internally across Wix's own React Native apps.

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
Detox: Does Detox work with native iOS or Android apps, not just React Native?

It is specifically designed around React Native's architecture; for native or non-React-Native hybrid apps, Appium is the more appropriate choice.

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
Detox: Is Detox free?

Yes, entirely open source with no licence fee.

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
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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