Our take
Pick Amplitude if product / support teams who will stay on Free at $0 (2 million events / month, no card) while they open a first Topics cluster, then upgrade to Plus (starts at $0, first 2M events free, scales to 70M) when they need custom events and 2-year retention. Pick PostHog if product / eng teams who will stay on Cloud Free $0 (1M events, 5K replays, 1M flag requests, 1,500 surveys, 100K exceptions, 1
Best for
Amplitude Event clusters you start at $0
PostHog Product events you start at $0
Free plan
Amplitude $0 · no credit card. No time limit. 2 million events / month. Unlimited seats. Session replay, feature flags, and AI agents on the tile we fetched
PostHog $0 · for the public app. You run it. Cloud US (Virginia) or EU (Frankfurt) on the hosted path
Lowest paid
Amplitude Startups $10
PostHog Logs retention $0.05
Next step up
Amplitude
PostHog Setup call $80
Runs where
Amplitude Local or hosted
PostHog Local; you host it
Watch out
Amplitude Free caps at 2 million events / month
PostHog Free is 1 project and 1M events
Last checked
Amplitude 2026-10-23 · amplitude.com/pricing
PostHog 2026-10-22 · posthog.com/pricing
product / support teams who will stay on Free at $0 (2 million events / month, no card) while they open a first Topics cluster, then upgrade to Plus (starts at $0, first 2M events free, scales to 70M) when they need custom events and 2-year retention.
Read the Amplitude pageproduct / eng teams who will stay on Cloud Free $0 (1M events, 5K replays, 1M flag requests, 1,500 surveys, 100K exceptions, 1 project, no card) while they ask a first Insight, then raise a billing limit when a launch week would freeze at the cap — or self-host when they will run the stack.
Read the PostHog page
