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Technology · head to head

LaunchDarkly vs PostHog

LaunchDarkly logo

LaunchDarkly

Technology

Ship fast. Rest easy.

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: LaunchDarkly pricing scales rapidly with monthly active users, becoming expensive at scale; 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: LaunchDarkly covers Progressive rollouts, PostHog covers Product analytics.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which LaunchDarkly and PostHog actually diverge.

Attributes where LaunchDarkly and PostHog differ
AttributeLaunchDarklyPostHog
Pricing modelUnknownusage-based
PlatformsWeb, Cloud, APIsWeb, Ios, Android, Api
Founded20142020

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

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 LaunchDarkly

  • Progressive rollouts
  • User targeting
  • Kill switches
  • Audit log
  • Multi-environment
  • SDKs for all platforms
  • Jira
  • Datadog

Only in PostHog

  • Product analytics
  • Session recording
  • Heatmaps
  • SQL access
  • Data warehouse
  • Apps platform
  • Microsoft Teams
  • Zapier

Both cover

  • Feature flags
  • A/B testing
  • Slack
  • GitHub
  • SOC2
  • GDPR
  • HIPAA

What people use each for

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

LaunchDarkly

  • Progressive deliverynot PostHog
  • Feature experimentation
  • Risk mitigationnot PostHog
  • Performance optimizationnot PostHog
  • Infrastructure migrationnot PostHog

PostHog

  • Product analyticsnot LaunchDarkly
  • Feature experimentation
  • User behavior trackingnot LaunchDarkly
  • A/B testingnot LaunchDarkly
  • Debug production issuesnot LaunchDarkly

Both are used for feature experimentation, on those jobs the choice comes down to price and fit rather than capability.

Where each one falls short

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

LaunchDarkly

  • Pricing scales rapidly with monthly active users, becoming expensive at scale
  • Limited seats for engineers on standard plans, forcing upgrade to enterprise
  • Advanced features like experimentation and audit logs require higher-tier plans
  • Occasional reliability issues and backend delays reported by users

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

LaunchDarkly

Free
  • DeveloperFree
    • Unlimited seats
    • Unlimited feature flags
    • A/B tests and experiments
  • Foundation$undefined/mo
    • $12 per connection
    • $10 per 1K MAU
    • Targeted segmentation
  • Enterprise$undefined/mo
    • Custom pricing
    • Advanced automation
    • Compliance features

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 LaunchDarkly if

  • You need progressive rollouts.
  • You want to start without paying.
  • You work on Web, Cloud, APIs.
  • You also want user targeting.
LaunchDarkly 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 LaunchDarkly or PostHog better?
Neither clearly leads. LaunchDarkly 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, LaunchDarkly or PostHog?
LaunchDarkly starts at Free and PostHog at Free.
Does LaunchDarkly or PostHog run on more platforms?
LaunchDarkly runs on Web, Cloud, APIs. PostHog runs on Web, Ios, Android, Api.
Can I use LaunchDarkly for free?
Both have a free tier, so you can try either at no cost before committing.
What is LaunchDarkly best used for?
LaunchDarkly is most often used for progressive delivery, feature experimentation, risk mitigation, performance optimization. Of those, progressive delivery and risk mitigation are not what PostHog is typically brought in for.
What can LaunchDarkly do that PostHog cannot?
LaunchDarkly covers Progressive rollouts, User targeting, Kill switches, Audit log. PostHog covers Product analytics, Session recording, Heatmaps, SQL access. Both handle Feature flags, A/B testing, Slack, GitHub.

Answered from the vendors’ own pages

LaunchDarkly: What does the free Developer plan include?

The free Developer plan includes unlimited seats, unlimited feature flags, A/B tests and experiments, 30 SDKs, 10 million logs and traces, 5,000 session replays and errors, and 14 days of data retention.

Source
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
LaunchDarkly: How does LaunchDarkly pricing scale?

Foundation plan pricing is $12 per connection plus $10 per 1,000 Monthly Active Users (MAU). Enterprise and Guardian plans have custom pricing based on usage, advanced features, and compliance requirements.

Source
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
LaunchDarkly: Does LaunchDarkly integrate with Jira and Slack?

Yes, LaunchDarkly integrates with Jira Cloud, allowing you to link feature flags to Jira issues and create issues from observability data. It also integrates with Slack for flag notifications and allows authorized members to trigger flag changes from Slack.

Source
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
LaunchDarkly: What is dark launching and how does LaunchDarkly enable it?

Dark launching keeps code changes hidden in production until ready to enable. LaunchDarkly enables this through feature flags that let teams safely test code in production before rolling out to users.

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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