PostHog vs GrowthBook: Feature Flags Comparison (2026)

An independent side-by-side comparison of PostHog and GrowthBook for feature flags buyers — pricing, features, integrations, and how often each is cited by major AI engines.

AI Citation Scorecard

How often each is cited by major AI engines when buyers ask feature flags questions. Last 90 days across ChatGPT, Perplexity, Gemini, Claude, and Copilot.

GrowthBook leads overall — 60% cited vs PostHog 40% across 10 probes.
ChatGPT
PostHog
0 / 1 probes
0%
Invisible
GrowthBookLeads
1 / 1 probes
100%
Excellent
Perplexity
PostHogLeads
1 / 1 probes
100%
Excellent
GrowthBook
0 / 1 probes
0%
Invisible
Gemini
PostHogLeads
1 / 1 probes
100%
Excellent
GrowthBook
0 / 1 probes
0%
Invisible
Claude
PostHog
0 / 1 probes
0%
Invisible
GrowthBookLeads
1 / 1 probes
100%
Excellent
Copilot
PostHog
0 / 1 probes
0%
Invisible
GrowthBookLeads
1 / 1 probes
100%
Excellent
Scale:NoneLowFairStrongExcellent

Probes run hourly; each (engine × query) combo retests every ~3 days.

Pricing

PostHog
Starting price
$0.00005/event
Free tier
Yes
posthog.com ↗
GrowthBook
Starting price
$40/seat/month
Free tier
Yes
growthbook.io ↗

Key Features

PostHog
  • ✓Generous free tier
  • ✓Usage-based pricing
  • ✓Unlimited team members
  • ✓Community support
GrowthBook
  • ✓Unlimited feature flags
  • ✓Unlimited experiments
  • ✓Visual editor
  • ✓Safe rollouts
  • ✓Customizable dashboards
  • ✓Advanced permissioning
  • ✓Dedicated support
  • ✓Managed warehouse option

When to choose PostHog

Choose PostHog if your team prioritizes its strengths over GrowthBook's. Full guidance populates as PostHog's feature data is indexed.

When to choose GrowthBook

Choose GrowthBook if your team prioritizes its strengths over PostHog's. Full guidance populates as GrowthBook's feature data is indexed.

AI visibility profiles

Is one of these your brand?

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PostHog

posthog.com

GrowthBook

growthbook.io

Free check

Check any brand's AI visibility — free

We ask the buyer questions in this market across ChatGPT, Claude, Gemini, Perplexity and Copilot, and show you who gets named.

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