Side-by-side comparison of free tiers, pricing changes, and stability. Catalogue dates here run to 2026-09-12.
Quick Verdict: PostHog gives 1M events/month with session replays, feature flags, and A/B testing included. Amplitude gives 10K MTU with 10M events but charges separately for session replays. PostHog is the better all-in-one value; Amplitude has deeper behavioral analytics.
Product analytics — 1M events/month, 5K session replays, 1M feature flag requests, 100K error events, A/B testing. No credit card requiredWhen we last read the page we cite for this offer, on 2026-09-12, we refused the change we considered recording because it named no figure that had moved, and refusing a change is not a confirmation of the terms above, so we cannot confirm these terms today.
Key Differences
Free tier: PostHog offers 1M events + 5K session replays + 1M feature flag requests — all included. Amplitude offers 10K MTU (10M events) + 1K session replays but feature flags are limited.
Product scope: PostHog bundles analytics, session replays, feature flags, A/B testing, and error tracking in one platform. Amplitude is analytics-focused with replays as an add-on.
Pricing model: PostHog charges per event. Amplitude charges per Monthly Tracked User (MTU). The MTU model can be cheaper for high-event/low-user products, or more expensive for low-event/high-user ones.
Self-hosting: PostHog is open source (MIT core) and can be self-hosted. Amplitude is cloud-only.
Pricing Change History
Amplitude
restructureddiscovered 2026-09-09 · effective date unknownmedium impact
Amplitude renamed its Startup Scholarship "Early Stage Startup Pricing". The first year is still the full Growth plan free for startups with under 20 employees and under $10M raised; year 2 is now 40% off the annual Plus plan, or the free plan. Source ↗
PostHog
No recorded pricing changes for PostHog.
Our Recommendation
Choose PostHog if you want an all-in-one product analytics platform, value open source, or want to replace multiple tools (analytics + replays + flags + A/B testing).
Choose Amplitude if you need deep behavioral analytics with advanced cohort analysis, or your product has high events-per-user where MTU pricing works in your favor.
PostHog gives 1M events/month with session replays, feature flags, and A/B testing included. Amplitude gives 10K MTU with 10M events but charges separately for session replays. PostHog is the better all-in-one value; Amplitude has deeper behavioral analytics.
PostHog offers a Free plan: Product analytics — 1M events/month, 5K session replays, 1M feature flag requests, 100K error events, A/B testing. No credit card required
Should I choose Amplitude or PostHog?
Choose PostHog if you want an all-in-one product analytics platform, value open source, or want to replace multiple tools (analytics + replays + flags + A/B testing). Choose Amplitude if you need deep behavioral analytics with advanced cohort analysis, or your product has high events-per-user where MTU pricing works in your favor.
Get this data in your AI editor
Compare Amplitude, PostHog, and 1,600+ other developer tools from your AI coding assistant.
claude mcp add agentdeals -- npx -y agentdeals
Works with Claude Desktop, Cursor, Cline, Windsurf → Full setup guide