VWO vs Statsig

Free tier available

Free tier available

Priced by monthly tracked users across modules, so buying testing plus insights raises the total substantially. The Wingify rebrand has moved pricing behind Growth/Pro/Enterprise tiers without published figures — get a quote rather than relying on an old VWO list price.

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

Free starter plan with limited monthly tracked users.

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

Widely used

Wingify (VWO + AB Tasty) · since 2010

Widely used

Statsig (Amplitude) · since 2020

• Observation and experimentation in one place shortens the hypothesis loop.
• Visual editor is capable and marketer-friendly.
• Cheaper than Optimizely at comparable traffic.

• 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.

• Module-based pricing means the useful configuration costs much more than the headline.
• Client-side flicker on complex single-page applications.
• Server-side capability lags the flag-first 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.

Conversion-optimisation teams that want testing and behavioural insight from one vendor.

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