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 onlyFrom $12 per seat/month plus context-based usage (indicative)
PaidWhat drives the bill
The metric that actually scales your invoice.
Quote-based annual contracts priced by traffic volume.
Priced on seats plus monthly contexts (roughly, unique users evaluated). High-traffic consumer products get expensive.
Free tier
No free tier; demo on request.
14-day trial; no permanent free tier.
Open source
Self-hostable
No-code authoring
Languages
Platforms
Fits teams
Adoption
Established
AB Tasty · since 2009
Category standard
LaunchDarkly · since 2014
Strengths
Limitations
Best for
European e-commerce and media companies with GDPR-driven vendor requirements.
Engineering organisations where flags are critical infrastructure and governance is required.
All of these integrate with: Segment, Slack.
Pricing last reviewed August 2026 and is indicative only — confirm on each vendor’s own page.