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.
One of the most generous free tiers in developer tooling; paid usage is billed on analytics events, not seats.
Free tier
No free tier; demo on request.
Generous free tier including unlimited feature flags and a large monthly event allowance.
Open source
Self-hostable
No-code authoring
Languages
Platforms
Fits teams
Adoption
Established
AB Tasty · since 2009
Widely used
Statsig (OpenAI) · since 2020
Strengths
Limitations
Best for
European e-commerce and media companies with GDPR-driven vendor requirements.
Product teams that want experimentation and analytics to share one source of truth.
All of these integrate with: Segment, Slack.
Pricing last reviewed August 2026 and is indicative only — confirm on each vendor’s own page.