Quick answer
Statsig - Statsig wins for most builders because its free tier is broader, includes no-card signup, and is easier to keep using before you have to pay.
How the free tiers compare
Amplitude and Statsig both give you a real free analytics stack, but they optimize for different entry points. Amplitude’s free tier is narrower and more clearly a sampling tier: 10K monthly tracked users, up to 2M events, plus session replay, experimentation, feature flags, and integrations. It is useful if you want classic product analytics and plan to grow into a more traditional analytics suite. Statsig’s free Developer tier is closer to a usable production starter: 2M events, 50K session replays, unlimited flag/config checks, A/B testing, product and web analytics, 1-year retention, and unlimited seats, with no credit card required. The bigger practical difference is what happens next. Amplitude’s first paid tier is a flat $49/month plan with fixed caps, while Statsig’s Pro tier starts at $150/month and moves toward usage-based scaling and higher limits. For early builders, Statsig is usually the more forgiving place to start.
Amplitude vs Statsig free tier, side by side
| AmplitudeFTV 33 | StatsigFTV 71 | |
|---|---|---|
| Monthly tracked users / eventsAmplitude uses MTUs as its main free-tier cap; Statsig states event volume directly. | 10K MTUs, up to 2M events | 2M events per month |
| Session replayStatsig gives a specific replay quota; Amplitude only says session replay is included. | Included | 50,000 replays per month |
| SeatsOnly Statsig explicitly states unlimited seats in the free tier. | Not specified | Unlimited seats |
| Feature flags / configsBoth cover flagging, but Statsig is explicit about checks and configs. | Unlimited feature flags | Unlimited flag and config checks |
| Analytics retentionStatsig spells out retention on the free tier; Amplitude does not in the provided input. | Not specified | 1-year analytics retention |
After you outgrow the free tier
Amplitude’s first paid tier is Plus at $49/mo, a flat plan with higher fixed caps. Statsig’s first paid tier is Pro at $150/mo, and the pricing model is usage_based, with higher included event and replay limits plus advanced features. For small teams, Amplitude is cheaper once you need to pay at all. Statsig is more generous for staying free longer, but the paid step is much steeper. The provided data does not include enough rates for exact overage math beyond the listed plan prices, so concrete usage-based scenarios cannot be calculated reliably.
Cost at real usage
| Usage | Amplitude | Statsig |
|---|---|---|
| Free-tier usage within limitsAmplitude is capped at 10K MTUs and up to 2M events; Statsig at 2M events, 50K replays, and unlimited seats. | Free (within tier) | Free (within tier) |
Estimates, not quotes. Usage-based rates change - verify with the vendor's pricing page before committing.
When to pick each one
Pick Amplitude when…
- You want classic product analytics with session replay and experimentation in one place.
- You are a small team that expects to stay under 10K monthly tracked users for a while.
- You care more about Amplitude’s product analytics workflow than about unlimited seats.
- You want a low-cost paid step up at $49/month before entering custom pricing.
Pick Statsig when…
- You want to start without a credit card.
- You need unlimited seats on the free tier for engineers, PMs, and data folks.
- You expect to use A/B tests, flags, analytics, and session replay together in a real product workflow.
- You want a free tier with 2M events and 50K session replays before you hit a paywall.
- You want a free plan that feels closer to a team tool than a demo.
Bottom line
For the most common builder use case, Statsig is the better free-tier choice because it lets a small team actually run flags, experimentation, analytics, and session replay without a card, and without squeezing seats. Amplitude is still attractive if you specifically want its analytics-first workflow and a cheaper first paid step at $49/month. But if the question is which free plan carries farther before you have to commit, Statsig wins.
Read the full listings: Amplitude and Statsig. Scores use the FTV methodology at /ftv. Browse more head-to-heads on /compare, or see the top-ranked free tiers on /top.