AI experimentation platform

Kameleoon review (2026), pros, cons and pricing

Kameleoon is an experimentation platform that has rebuilt its web testing around Prompt-Based Experimentation, where AI builds variants from a description. It starts from $495 a month, with enterprise options for feature flags, mobile apps and personalization.

What it is: Kameleoon is an experimentation platform for web, feature and mobile app tests, built around Prompt-Based Experimentation (PBX), where you describe a change and AI builds the variant.
Best for: Marketing teams that want AI to build web experiments, and larger companies that also need feature flags, mobile app tests, personalization and strict compliance.
Price: From $495/month
Free plan or trial: Free trial
Founded: 2012
Leadership: Jean-René Boidron (CEO) and Jean-Noël Rivasseau (founder and CTO), as of 2019
Offices: Paris, New York, London, Toronto and Offenburg (Germany)
Size: 200+ employees and 1,000+ brands running tests, per Kameleoon
Funding: Raised five million euros in July 2019
Customers named on its site: Samsung, Toyota, Lidl, Best Western, Canada Goose, Fossil

What Kameleoon is

Kameleoon launched in 2012 and has offices in Paris, New York, London, Toronto and Offenburg, Germany. It says more than 1,000 brands run tests with it, and it names Samsung, Toyota, Lidl, Best Western and Canada Goose among its customers. The platform covers web experimentation, feature management, mobile app testing, AI personalization, and product recommendations and search.

Prompt-Based Experimentation

PBX is now the center of the product. You describe the change you want in plain language, and AI generates the variation and can launch the experiment, without code or a WYSIWYG editor. You start in a Chrome extension, so you can build before installing any script on your site. A Figma integration lets you build from design mockups.

Kameleoon now describes PBX 2.0 as five agents: Ideate, Build, Configure, Analyze and Ship. PBX Ideate, announced in May 2026, scans a page, suggests test ideas and turns them into prompts. Kameleoon says it ranks ideas using insights from more than 20,000 past experiments.

Each prompt uses one credit, and Kameleoon says a typical experiment takes about 3. Starter plans come with 30, 100 or 200 credits a month, and unused credits don't roll over.

If you'd rather build by hand, Kameleoon still has its graphic editor for no-code variations, and a JavaScript and CSS code editor on Enterprise.

Stats

Reporting supports frequentist and Bayesian methods, sequential testing, multiple testing correction, CUPED, outlier handling and ratio metrics such as revenue per add to cart. Five automated health checks cover tracking, conversions and sample ratio mismatch, among others. AI reporting points out opportunities in tests that didn't reach a result.

Revenue tracking

Revenue goals take setup. You send the order value with a JavaScript API call, through a Google Tag Manager command queue, or with the SDKs' conversion tracking. On Shopify Plus, the integration tracks e-commerce events including transactions. Checkout conversions come through a custom pixel you add, and checkout pages themselves can't be tested.

Server-side, apps and compliance

Feature management and rollout, feature experimentation, mobile app testing and personalization are Enterprise capabilities, as are contextual and multi-armed bandits. Data warehouse connections to Snowflake, BigQuery, Redshift and Databricks are premium add-ons. Security options include SSO, HIPAA compliance, EU or US data residency, and self-hosting the script.

Who it suits

Kameleoon suits marketing teams that want AI to take over building variants, and larger companies that need web, feature and app testing on one platform with strict compliance. Small teams should check the Starter limits first. It allows 10 experiments and 50,000 tracked users a month in one project, and experiments stop when the traffic quota runs out.

Pros and cons

What Kameleoon does well

A published starting price ($495 a month) and a 30-day free trial with no credit card.
PBX builds variants from plain-language prompts, and PBX Ideate scans a page and suggests ranked test ideas.
Sequential testing, multiple testing correction, SRM detection and holdouts are included in Starter.
Frequentist and Bayesian methods, CUPED, outlier handling and ratio metrics such as revenue per add to cart.
Web, server-side, feature flag and mobile app testing on one platform, with EU or US data residency, SSO and HIPAA compliance.
You can start building in a Chrome extension before installing any script on your site.

Where it falls short

Starter is capped at 10 experiments and 50,000 tracked users a month, and experiments stop when you hit the traffic quota.
Starter covers one project. Feature flags, mobile app testing, personalization and the code editor sit in Enterprise.
AI credits are limited each month and unused credits don't roll over.
Revenue goals need setup, through a JavaScript API call, a tag manager or the Shopify Plus integration.
Trial tests and data aren't saved if you don't upgrade.

Outtest vs Kameleoon

Kameleoon and Outtest both put AI at the center of testing, but they split the work differently. Kameleoon's PBX lets you describe a change and have AI build the variant, and PBX Ideate suggests what to test. Your team still picks the ideas, sets goals and reads the stats. PBX Starter starts from $495 a month for 10 experiments and 50,000 visitors, and Enterprise adds feature flags, mobile app tests and personalization.

Outtest is a new AI split tester for small teams without a CRO specialist or developer time. Its agents find the funnel leak, build the version, run it and call the winner, and every test is judged on revenue per visitor read from your payment tool. It costs $29 to $499 a month by tests per month. Outtest has no track record yet and doesn't list feature flags or mobile app testing.

	Outtest	Kameleoon
Best for	Founders and small teams who want tests run for them and judged on real revenue, without a CRO specialist.	Marketing teams that want AI to build web experiments, and larger companies that also need feature flags, mobile app tests, personalization and strict compliance.
Price	From $29/month (3 tests a month). 20% off yearly.	PBX Starter starts from $495 a month for up to 10 experiments and 50,000 visitors a month, paid monthly by card. Enterprise is custom, based on monthly unique visitors over the last 12 months. There's a free 30-day trial with no credit card.
Free plan or trial	No free plan or trial	Free trial
AI builds the test versions	Yes	Yes
Judges tests on revenue from your payment tool	Yes	Partly
Visual editor	No	Yes
Server-side tests	Partly	Yes
Stats engine	Bayesian, on revenue per visitor	Both (frequentist and Bayesian, with sequential testing and CUPED)
Payment integrations	Stripe, Shopify, Paddle, Lemon Squeezy, Dodo Payments, Creem, RevenueCat, Chargebee	Shopify, Salesforce Commerce Cloud

Pick Kameleoon if

You want AI to build variants, but you want your team to choose ideas and control goals and targeting.
You need feature flags, server-side tests or mobile app tests alongside web tests.
You need HIPAA compliance, EU or US data residency, or a self-hosted script.
You have the traffic and budget for $495 a month or an enterprise contract.

Pick Outtest if

You want the whole loop handled, including deciding what to test and calling the winner.
You want revenue per visitor from your payment tool out of the box, not a revenue goal you wire up.
Your budget is $29 to $99 a month. Outtest Pro runs 30 tests a month for $99, against Starter's 10 from $495.
You want to test pricing, trial length and cancel flows.

The verdict. Kameleoon fits teams that want AI-built variants inside a full experimentation platform, with enterprise options for features, apps and compliance. Outtest fits small teams that want AI to run revenue-judged tests end to end at a lower price. Kameleoon has been around since 2012; Outtest is new.

Questions people ask

How much does Kameleoon cost?+

PBX Starter starts from $495 a month for up to 10 experiments and 50,000 visitors a month. Enterprise is custom, priced on monthly unique visitors over the last 12 months.

Does Kameleoon have a free trial?+

Yes. The PBX Starter trial is free for 30 days with no credit card and lets you build up to 3 experiments. Tests and data aren't saved if you don't upgrade.

What is Kameleoon PBX?+

Prompt-Based Experimentation. You describe a change in plain language and AI builds the variant and can launch the test. PBX Ideate also scans pages and suggests test ideas. Each prompt uses one AI credit.

What happens if I go over Kameleoon's traffic limit?+

You get an email and in-app alert at 90% of your quota. At 100%, experiments stop running. Enterprise plans have unlimited tested traffic.

Does Kameleoon do server-side testing?+

Yes. Feature experimentation, feature management and mobile app testing run through Kameleoon's SDKs, as Enterprise capabilities.

Kameleoon pricing Kameleoon alternatives

Sources

Checked on 28 September 2026 from Kameleoon's own pages. Prices and features change; check Kameleoon's site before you buy.

Let Outtest run your split tests

AI agents read your analytics and payments, find where you lose the most money, build the fix and test it. Every test is judged on revenue, not clicks. Plans from $29 a month.

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