GrowthBook vs Statsig

From $20 per user/month (indicative, cloud Pro)

Free tier available

Dramatically cheaper than the commercial platforms, especially self-hosted at high traffic.

One of the most generous free tiers in developer tooling; paid usage is billed on analytics events, not seats.

Self-hosted open-source edition is free and unlimited; cloud free tier for up to a few users.

Generous free tier including unlimited feature flags and a large monthly event allowance.

Widely used

GrowthBook · since 2021

Widely used

Statsig (OpenAI) · since 2020

• Warehouse-native by design — no duplicate event pipeline and no data leaving your control.
• Self-hosting removes per-user-volume pricing entirely.
• Both Bayesian and frequentist engines with sequential testing support.

• Statistics engine is genuinely strong — sequential testing and CUPED are not marketing veneer.
• Flags, experiments and analytics in one system removes a whole class of integration work.
• Warehouse-native mode satisfies data-governance requirements.

• Requires a working data warehouse and someone who can define metrics in SQL.
• Self-hosting is operational work you own.
• Less polished governance and approval tooling than LaunchDarkly.

• Event-based pricing can escalate sharply on high-volume products.
• Broad surface area means a real learning curve.
• Now owned by OpenAI, which introduces strategic uncertainty for some buyers.

Data-mature teams that already have a warehouse and want to avoid volume-based pricing.

Product teams that want experimentation and analytics to share one source of truth.