VWO
Wingify (Everstone Capital) · India · since 2009
Full-suite digital experience optimization platform for mid-market and enterprise teams that want testing, behavior analytics, personalization and feature flags from one vendor. Since January 2026 a sister product of AB Tasty under the Wingify/Everstone group.
Best for Teams that want automated validity checks without configuring them
The verdict
VWO does the unglamorous validity work almost nobody else automates: alongside its Bayesian sequential engine it runs automatic sample-ratio-mismatch, outlier and Simpson’s paradox checks, and it lets you set the minimum detectable effect, the region of practical equivalence, the false-positive rate and the statistical power yourself. Three public calculators cover duration, significance and sample size, and the data leaves for BigQuery, Snowflake, Amazon S3 and Segment. The transparency problem is naming: SmartStats is now legacy branding for non-Data360 accounts, so the published statistics page and what your account actually computes are not guaranteed to be the same thing.
Rating by Drip Trading GmbH, the company behind Apex by Drip. How we rate and weight
Strengths
- Genuinely broad suite from one vendor: testing, heatmaps, recordings, funnels, surveys, personalization, feature flags, a CDP and push notifications.
- Transparent, configurable Bayesian statistics with real safeguards, sequential analysis, settable MDE/ROPE/FPR/power, automatic SRM and Simpson’s-paradox checks.
- EU data residency is a real, documented option (GCP Belgium, no transfer outside the EU).
- Broad developer surface: FullStack SDKs in 8 languages plus Android, iOS, React Native and Flutter.
- 60+ integrations including GA4, Adobe, Segment, BigQuery and Snowflake.
Weaknesses
- No published pricing at all, verified by rendering the pricing page: zero price figures. Cost scales per module AND per tracked user, so the suite look inflates quickly.
- Cannot A/B test the Shopify checkout, VWO’s own docs exclude checkout, post-purchase and order-status pages.
- Zero Shopify App Store social proof: 0 reviews since March 2024.
- Ownership churn: majority-acquired by Everstone (Jan 2025), then merged with direct competitor AB Tasty (Jan 2026), product convergence risk is real, and docs already mix "VWO" and "Wingify" branding.
- Reviewers report flicker, visual-editor gaps on dynamic pages and the removal of chat support.
The facts
| Statistics | Bayesian engine with sequential analysis that handles peeking and multiple comparisons; MDE, ROPE, false-positive rate and power are user-settable; automatic SRM, outlier and Simpson’s-paradox checks. Note: "SmartStats" is now legacy branding for non-Data360 accounts. |
| Shopify | Shopify app (free to install, launched Mar 2024), 0 reviews after ~2.5 years. It deploys tracking everywhere except checkout, post-purchase and order-status pages: VWO cannot A/B test the Shopify checkout. Available from the Growth plan. |
| Privacy & hosting | Real EU data-residency option: customers can pin visitor data to GCP europe-west1 (Belgium); US and India regions also exist. Three documented consent modes (Completely/Partially/Do Not Block), DPA with SCCs, ISO 27001:2022, SOC 2 Type II. |
| Pricing | No published prices, plans (Growth/Pro/Enterprise) are quoted per module and billed on Monthly Tracked Users. 30-day free trial. Procurement data (Vendr, 102 purchases) puts the median annual contract at ~$16,300 (range ~$7,800–$35,800). |
Sources
- No public pricing (rendered page, raw HTML, JS bundles): https://vwo.com/pricing/ (accessed 2026-09-01)
- Wingify + AB Tasty merger under Everstone: https://techcrunch.com/2026/01/20/everstone-combines-wingify-and-ab-tasty-for-100m-digital-experience-optimization-platform/ (accessed 2026-09-01)
- Bayesian sequential engine, MDE/ROPE/FPR/power, SRM checks: https://vwo.com/why-us/technology/statistics/ (accessed 2026-09-01)
- Checkout/post-purchase/order-status excluded: https://vwo.com/integrations/shopify/ (accessed 2026-09-01)
- Shopify app 0 reviews, launched 2024-03-01: https://apps.shopify.com/vwo (accessed 2026-09-01)
- EU/US/India data centers, consent modes: https://vwo.com/gdpr/ (accessed 2026-09-01)
- Vendr median $16,330 (102 purchases): https://www.vendr.com/marketplace/vwo (accessed 2026-09-01)