Kameleoon vs Optimizely (2026): which should you pick?

Pick Kameleoon if

• Fits if you run a steady programme of site experiments
• Works for teams that want a trial of AI-assisted test setup first

Look elsewhere if

• Pricey if you're small: $495 a month for Starter
• Tight if you run many tests: Starter stops at 10 experiments and 50,000 visitors
• Watch out: feature management, personalisation, mobile testing and bandits are add-ons
• Watch out: the plans page doesn't say if $495 is billed monthly or annually

Pick Optimizely if

• Fits if you run many tests a month and have a team to run them
• Works for a large company that wants experiments, flags and content in one vendor

Look elsewhere if

• Skip it if you want a price to look at, as nothing is published
• Not for you if you need a free plan or trial, because neither is listed
• Skip it if you are a small site that just wants simple page tests, as this is a platform
• Watch out: it's several products, so what a quote includes varies by which you choose

Kameleoon

• Starter is limited to 10 experiments and 50,000 tested visitors a month.
• Feature management, feature experimentation, personalization, mobile app testing, a code editor, bandits and CUPED are add-ons to Starter.
• The plans page does not say whether $495 a month is billed monthly or annually.

Optimizely

• No prices are published: every plan is individually packaged and quoted after the buyer describes their needs.
• Optimizely is a multi-product platform, so what a quote includes depends on which products are chosen.
• No free plan or free trial is listed on the plans page.

Kameleoon

Prompt-Based Experimentation

Experiments on a website are built by chatting with Kameleoon's AI assistant, called PBX.

Statistics tools

Sequential testing, multiple testing correction, sample ratio mismatch detection and holdout groups.

Feature management and experimentation

Feature flags and rollouts, and experiments run from code; listed as extra capabilities on Starter.

Personalization and bandits

Personalization plus contextual and multi-armed bandits as add-on capabilities.

Mobile app testing

Experiments inside mobile apps, offered as an add-on to Starter.

Optimizely

Web experimentation

A/B and multivariate tests on the front end of a site, which the vendor says run flicker-free.

Feature experimentation and management

Experiments and feature releases controlled from code, aimed at engineering teams.

Bandits and AI assistance

Multi-armed bandits and AI help with test ideas, test plans and reading results.

Agentic CMS

A content management system sold alongside the experimentation tools.

Agent platform

AI agents that automate marketing tasks and workflows.

Kameleoon

• PBX Starter$495

  per month for up to 50,000 visitors; basis not shown

  Up to 10 experiments and 50,000 tested visitors a month, with sequential testing, 40+ segmentation criteria, SRM detection and a Figma integration.

• EnterpriseCustom

  Unlimited experiments and tested traffic, advanced capabilities and a dedicated support team.

Optimizely

Pricing could not be confirmed. See optimizely.com.