Optimizely vs Kameleoon
Side-by-side from the Top 11 ranking of The 11 Best A/B Testing Tools. Last verified June 13, 2026.
The short answer
Optimizely ranks higher on Top 11 (#1 vs #6) for Growth teams running experiments. The enterprise standard for its powerful stats engine and full-stack experimentation features.
At a glance
| Optimizely | Kameleoon | |
|---|---|---|
| Top 11 rank | #1 / The 11 Best A/B Testing Tools | #6 / The 11 Best A/B Testing Tools |
| Score (out of 9.4) | 9.2 | 8.1 |
| Best for | Enterprise-scale experimentation | Unified client & server-side AI testing |
| Pricing | $$$$$ (Custom enterprise plans) | $$$$ (Custom plans) |
| HQ | New York, USA | Paris, France |
| Founded | 2009 | 2012 |
Optimizely
The enterprise standard for its powerful stats engine and full-stack experimentation features.
www.optimizely.comKameleoon
A unified platform for web testing and feature flagging, enhanced by AI personalization.
www.kameleoon.comMethodology and scoring weights live at /methodology. No vendor pays for placement — see about.