📊 Data source: Manual research + official pricing page•🔄 Updated April 2026•✅ 75% confidence score

Analytics

PostHog True Cost Calculator

Open-source product analytics suite. Generous free tier with 1M events/mo, then usage-based pricing — but session replay, feature flags, and surveys each have separate billing meters.

Advertised Price

/month

Estimated True Cost

$180

/month (typical usage)

Surprise Factor

N/A×

more than expected

Confidence

75%

Data source: manual

Calculate Your Exact Cost →

Hidden Fees & Gotchas

What the pricing page doesn't tell you

Multiple Billing Meters

PostHog bills separately for: analytics events ($0.00031/event), session replays ($0.005/recording), feature flag requests ($0.0001/request), and surveys ($0.20/response). Each meter adds to the total.

Trigger: events > 1000000

+$100

/monthly

Session Replay Storage Costs

Session replays cost $0.005/recording after free 5K/mo. High-traffic sites recording 50K sessions/mo = $225/mo just for replays.

Trigger: sessionReplays > 5000

+$50

/monthly

Data Pipeline Add-On

Exporting data to external data warehouses (BigQuery, Snowflake, S3) requires the data pipeline add-on with its own per-event pricing.

Trigger: dataPipeline > 0

+$30

/monthly

Total hidden fees: +$180/mo on top of the $0 advertised price

PostHog Pricing Tiers

Plan	Monthly	Annual (per mo)	Key Limits	Overage Rules
Free	$0	$0	Surveys: 250 Session Replays: 5000 Analytics Events: 1000000 Feature Flag Requests: 1000000	No overages
Pay-as-you-goPOPULAR	$0	$0	Surveys: unlimited Session Replays: unlimited Analytics Events: unlimited Feature Flag Requests: unlimited	$0.00031/event over 1,000,000 $0.005/recording over 5,000