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
From $20 per user/month (indicative, cloud Pro)
Free tierFrom $12 per seat/month plus context-based usage (indicative)
PaidWhat drives the bill
The metric that actually scales your invoice.
Dramatically cheaper than the commercial platforms, especially self-hosted at high traffic.
Priced on seats plus monthly contexts (roughly, unique users evaluated). High-traffic consumer products get expensive.
Free tier
Self-hosted open-source edition is free and unlimited; cloud free tier for up to a few users.
14-day trial; no permanent free tier.
Open source
MIT (core)
Self-hostable
No-code authoring
Languages
Platforms
Fits teams
Adoption
Widely used
GrowthBook · since 2021
Category standard
LaunchDarkly · since 2014
Strengths
Limitations
Best for
Data-mature teams that already have a warehouse and want to avoid volume-based pricing.
Engineering organisations where flags are critical infrastructure and governance is required.
All of these integrate with: Snowflake, Segment, Slack.
Pricing last reviewed August 2026 and is indicative only — confirm on each vendor’s own page.