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, generally aimed at companies with a data team and a warehouse already in place.
Paid tiers are quote-based, priced by monthly tracked keys.
Free tier
Free tier available for small teams.
Free tier with limited monthly tracked keys.
Open source
Self-hostable
No-code authoring
Languages
Platforms
Fits teams
Adoption
Established
Eppo (Datadog) · since 2020
Established
Harness · since 2015
Strengths
Limitations
Best for
Data-mature organisations where experiment results must withstand scrutiny.
Teams that want every release measured, not just deliberate experiments.
All of these integrate with: Snowflake, Segment, Slack.
Pricing last reviewed August 2026 and is indicative only — confirm on each vendor’s own page.