AB Testing Index
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Rank #8 of 8Reviewed 2026-09-01

AB Tasty

Wingify (Everstone Capital) · France · since 2009

7.1/10

Enterprise experimentation and personalization platform for mid-market and large B2C web teams, with a no-code visual editor and a separate feature-flagging line. Since January 2026 a sister product of VWO under the Wingify/Everstone group.

Best for Existing customers and teams invested in EmotionsAI segmentation

The verdict

AB Tasty’s Bayesian statistics are publicly documented to a depth most competitors avoid, and its honesty about sequential testing is a rare credibility signal. But the January 2026 merger into VWO’s parent, followed by cutting all French development teams in June, makes the product’s independent future the dominant question a buyer must ask.

Rating by Drip Trading GmbH, the company behind Apex by Drip. How we rate and weight

Strengths

  • Genuinely strong, publicly documented Bayesian statistics, the actual model, sampling method and corrections are published, which most competitors do not do.
  • Intellectually honest about sequential testing: the vendor explicitly tells customers NOT to use its alerts to call winners early. Rare credibility signal.
  • Broad unified surface: web experimentation, EmotionsAI behavioral segmentation, recommendations, semantic search, merchandising, plus feature flagging with 11 SDKs.
  • Solid privacy posture on paper: first-party cookies only, IPs not stored, three explicit consent modes, named DPO.
  • Well reviewed on the big review platforms (own G2 material claims leader badges).

Weaknesses

  • Ownership upheaval is the biggest current risk: merged into Wingify (VWO’s parent) in January 2026, HQ moved to New Delhi, and a June 2026 redundancy plan cut 78 of ~181 French roles including all French development teams, management cites "technology duplication… a single platform". Product convergence with VWO is a live question.
  • Quote-only enterprise pricing (median ~$66,500/year per Vendr) with no self-serve trial, out of reach for most SMB and mid-market merchants.
  • Recurring reviewer complaints about tag weight, page-speed impact and flicker, the Shopify listing itself advertises "flexible loading options to reduce flicker".
  • Very thin Shopify footprint: 4 app reviews since May 2024, and checkout testability is undocumented.
  • Documentation gaps: no public integration catalogue, no named cloud regions, no disclosed sequential-testing method, no cookieless mode for the core product.

The facts

StatisticsWell-documented Bayesian engine (beta-binomial priors, ~1M Monte Carlo samples, automatic Bonferroni) for rate metrics; Mann-Whitney U test for revenue metrics. Sequential Testing Alerts are loser-detection only, AB Tasty itself advises against calling winners early with them.
ShopifyShopify app (free to install, launched May 2024): 4.9/5 from only 4 reviews, a thin footprint for an enterprise vendor. Whether the Shopify checkout can be tested is not documented anywhere public.
Privacy & hostingFirst-party cookies only (13-month lifetime), visitor IPs "immediately deleted", three consent modes incl. Didomi support, DPA via dpo@abtasty.com. Runs on GCP/AWS with region-follows-client but no named EU region. Holds its own ISO 27001; SOC 2 is attributed to its cloud providers, not itself.
Pricing"No fixed plans. Just a custom proposal." Annual contracts, no self-serve trial (a 1–2 week proof of concept instead). Procurement data (Vendr) puts the median around $66,500/year.

Sources

  1. Quote-only pricing: https://www.abtasty.com/pricing/ (accessed 2026-09-01)
  2. Wingify merger, leadership, revenue: https://techcrunch.com/2026/01/20/everstone-combines-wingify-and-ab-tasty-for-100m-digital-experience-optimization-platform/ (accessed 2026-09-01)
  3. French redundancy plan (78 of ~181 roles): https://www.maddyness.com/2026/07/29/ab-tasty-plan-social-en-france-pres-de-80-postes-supprimes/ (accessed 2026-09-01)
  4. Bayesian model, Bonferroni, Mann-Whitney U: https://docs.abtasty.com/reporting-and-performances/reporting/understand-the-statistics-behind-your-reports/statistics-for-the-reporting (accessed 2026-09-01)
  5. Sequential alerts are loser-detection only: https://www.abtasty.com/blog/sequential-testing-alerts/ (accessed 2026-09-01)
  6. Shopify app 4.9/5 from 4 reviews: https://apps.shopify.com/ab-tasty-1 (accessed 2026-09-01)
  7. Cookies, consent modes: https://docs.abtasty.com/account/performance-and-security/consent-policy---cookies-storage-and-privacy (accessed 2026-09-01)
  8. Vendr median $66,500/yr: https://www.vendr.com/marketplace/ab-tasty (accessed 2026-09-01)

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