Kameleoon vs Eppo
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 $495 per month (PBX Starter: 10 experiments, 50k tested visitors)
Trial onlyQuote on request
Quote onlyWhat drives the bill
The metric that actually scales your invoice.
Kameleoon now publishes an entry price. Above Starter it is priced by traffic and modules on a custom quote.
Quote-based, generally aimed at companies with a data team and a warehouse already in place.
Free tier
30-day trial, no card, up to 3 experiments.
Free tier available for small teams.
Open source
Self-hostable
No-code authoring
Languages
Platforms
Fits teams
Adoption
Established
Kameleoon · since 2012
Established
Eppo (Datadog) · since 2020
Strengths
- Genuinely good hybrid model — the same experiment can run client- and server-side.
- Effective anti-flicker implementation.
- EU hosting with healthcare-grade compliance options.
- Statistically rigorous — sequential testing, CUPED and diagnostics are core, not add-ons.
- Metrics defined once in the warehouse and reused across every experiment.
- dbt integration fits existing analytics engineering workflows.
Limitations
- Smaller market presence outside Europe.
- Only the entry tier is priced publicly; everything above it is a sales conversation.
- Fewer third-party integrations than Optimizely.
- Requires a warehouse and a data team; not usable by a product manager alone.
- Feature-flagging capability is lighter than dedicated flag platforms.
- Now part of Datadog, which changes the strategic picture.
Best for
European enterprises needing both marketer and developer experimentation under GDPR.
Data-mature organisations where experiment results must withstand scrutiny.
All of these integrate with: Segment.
Pricing last reviewed August 2026 and is indicative only — confirm on each vendor’s own page.