AB Tasty vs Statsig

Quote on request

Free tier available

Quote-based annual contracts priced by traffic volume, now sold as part of the merged Wingify platform.

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

No free tier; demo on request.

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

Established

Wingify (VWO + AB Tasty) · since 2009

Widely used

Statsig (Amplitude) · since 2020

• EU hosting and GDPR posture simplify European procurement.
• Good balance between marketer-friendly editing and server-side flags.
• Strong support reputation in European markets.

• 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.

• Less well known outside Europe, with a smaller partner ecosystem.
• Quote-based pricing with no self-serve entry.
• Statistics engine is less differentiated than the warehouse-native platforms.

• 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.

European e-commerce and media companies with GDPR-driven vendor requirements.

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