AB Tasty vs Split
Feature checklists rarely decide anything. What decides it is the pricing metric, who has to write the tests, and which limitation you can live with.
Entry price
Quote on request
Quote onlyFree tier available
Free tierWhat drives the bill
The metric that actually scales your invoice.
Quote-based annual contracts priced by traffic volume, now sold as part of the merged Wingify platform.
Paid tiers are quote-based, priced by monthly tracked keys.
Free tier
No free tier; demo on request.
Free tier with limited monthly tracked keys.
Open source
Self-hostable
No-code authoring
Languages
Platforms
Fits teams
Adoption
Established
Wingify (VWO + AB Tasty) · since 2009
Established
Harness · since 2015
Strengths
- EU hosting and GDPR posture simplify European procurement.
- Good balance between marketer-friendly editing and server-side flags.
- Strong support reputation in European markets.
- Automatic metric impact on every flag catches regressions nobody thought to measure.
- Guardrail alerts stop a bad rollout before it reaches everyone.
- Strong data-platform integrations.
Limitations
- 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.
- Post-acquisition roadmap now sits inside Harness's broader platform strategy.
- Requires meaningful event instrumentation before the impact analysis is useful.
- Opaque enterprise pricing.
Best for
European e-commerce and media companies with GDPR-driven vendor requirements.
Teams that want every release measured, not just deliberate experiments.
All of these integrate with: Segment, Slack.
Pricing last reviewed August 2026 and is indicative only — confirm on each vendor’s own page.