Flagsmith vs Statsig

From $40 per month (Start-Up, billed yearly; $45 monthly)

Free tier available

Free covers 50k requests a month and one seat; Start-Up raises that to 1M requests and 3 seats, Scale-Up is $250/month yearly. Considerably cheaper than LaunchDarkly, and self-hosting removes usage pricing entirely.

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

Free cloud tier with a monthly request allowance; open-source self-hosting is unlimited.

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

Established

Flagsmith · since 2018

Widely used

Statsig (Amplitude) · since 2020

• Genuinely easy self-hosting with a Docker image and Helm chart.
• Simple, comprehensible pricing.
• Remote config alongside flags, which covers a lot of mobile use cases.

• 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.

• Experimentation features are basic.
• Smaller company and community than the leaders.
• Fewer governance controls for large organisations.

• Event-based pricing can escalate sharply on high-volume products.
• Broad surface area means a real learning curve.
• Changed hands twice in under a year — OpenAI acqui-hired the founding team in September 2025, and Amplitude took over the product and brand in May 2026, so the roadmap is still settling.

Teams wanting straightforward flags without LaunchDarkly pricing or Unleash's operational depth.

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