GrowthBook vs Kameleoon

From $20 per user/month (indicative, cloud Pro)

Quote on request

Dramatically cheaper than the commercial platforms, especially self-hosted at high traffic.

Quote-based, priced by traffic and modules.

Self-hosted open-source edition is free and unlimited; cloud free tier for up to a few users.

Free trial on request.

Widely used

GrowthBook · since 2021

Established

Kameleoon · since 2012

• Warehouse-native by design — no duplicate event pipeline and no data leaving your control.
• Self-hosting removes per-user-volume pricing entirely.
• Both Bayesian and frequentist engines with sequential testing support.

• Genuinely good hybrid model — the same experiment can run client- and server-side.
• Effective anti-flicker implementation.
• EU hosting with healthcare-grade compliance options.

• Requires a working data warehouse and someone who can define metrics in SQL.
• Self-hosting is operational work you own.
• Less polished governance and approval tooling than LaunchDarkly.

• Smaller market presence outside Europe.
• Opaque pricing.
• Fewer third-party integrations than Optimizely.

Data-mature teams that already have a warehouse and want to avoid volume-based pricing.

European enterprises needing both marketer and developer experimentation under GDPR.