Softwr

Testing · head to head

Kameleoon vs Zephyr Scale

Kameleoon logo

Kameleoon

Testing

A/B testing and feature experimentation with a hybrid client and server-side engine

From
On request
Rated
-
Full reviewWebsite
Zephyr Scale logo

Zephyr Scale

Testing

Native test management for Jira

From
On request
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Kameleoon no rate card is published. Reported entry pricing around several hundred euros a month for the limited prompt-based tier comes from third parties rather than Kameleoon, so any budget you build before contacting sales is a guess.; Zephyr Scale tightly bound to Jira; limited standalone functionality outside Jira ecosystem
  • Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which Kameleoon and Zephyr Scale actually diverge.

Attributes where Kameleoon and Zephyr Scale differ
AttributeKameleoonZephyr Scale
PlatformsWeb, iOS, AndroidWeb

Identical on both: starting price (On request), pricing model (quote), free tier (No), user rating (Not yet rated), category (Testing).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Kameleoon

  • Visual A/B test editor
  • Server-side experimentation
  • Feature flags
  • Anti-flicker engine
  • AI personalisation
  • EU data hosting
  • Shared audiences
  • Statistics options

Only in Zephyr Scale

Nothing recorded that Kameleoon does not also cover.

What people use each for

The jobs each tool is most often brought in to do.

Kameleoon

  • A European retailer whose legal team requires EU-hosted experimentation data and has ruled out US-only vendorsnot Zephyr Scale
  • A team running both marketing page tests and product feature rollouts that wants one results engine rather than two disagreeing onesnot Zephyr Scale
  • A media site where client-side flicker on a test variant is visibly damaging the reading experiencenot Zephyr Scale
  • An organisation re-tendering experimentation after Optimizely or VWO pricing changes and wanting an independent European vendornot Zephyr Scale

Zephyr Scale

  • Test case management within Jira workflowsnot Kameleoon
  • Manual and automated test execution trackingnot Kameleoon
  • Cross-project test asset reusenot Kameleoon
  • Requirements traceability from stories to testsnot Kameleoon
  • CI/CD pipeline and BDD framework integrationnot Kameleoon

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Kameleoon

  • No rate card is published. Reported entry pricing around several hundred euros a month for the limited prompt-based tier comes from third parties rather than Kameleoon, so any budget you build before contacting sales is a guess.
  • Web experimentation, feature experimentation and personalisation are licensed as separate capabilities, so the unified platform story costs materially more than the entry configuration most buyers are first quoted.
  • The partner and agency ecosystem is concentrated in France and continental Europe; a buyer in North America or Asia will find fewer implementation specialists and less community knowledge than for Optimizely or VWO.
  • The integration catalogue is smaller than the market leaders, so a stack built on less common analytics or CDP tooling may need custom work that a larger vendor would cover natively.
  • Client-side visual testing still carries the structural problems of the approach, including performance cost and single-page-application fragility; the anti-flicker engine reduces the symptom but does not remove the dependency on the DOM staying stable.

Zephyr Scale

  • Tightly bound to Jira; limited standalone functionality outside Jira ecosystem
  • No-code automation features limited in Standard tier, expanded only in Advanced
  • Data residency feature unavailable for Essential tier, limiting enterprise compliance
  • Transparent cost structure not provided on marketing page

Pricing, plan by plan

Kameleoon

On request
  • Kameleoon$undefined/year
    • Priced on monthly tested users and features licensed
    • Web experimentation, feature experimentation and personalisation licensed separately
    • Free trial of the prompt-based experimentation feature, with data not retained afterwards

Zephyr Scale

On request

No published plan breakdown. See the Zephyr Scale review.

Which should you pick?

Choose Kameleoon if

  • You need visual a/b test editor.
  • You work on Web, iOS, Android.
  • You also want server-side experimentation.
Kameleoon review

Choose Zephyr Scale if

Nothing in the data separates Zephyr Scale from Kameleoon on the points above - pick on price and on how each one feels to use.

Zephyr Scale review

Questions people ask

Is Kameleoon or Zephyr Scale better?
Neither clearly leads. Kameleoon starts at On request and Zephyr Scale at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Kameleoon or Zephyr Scale?
Kameleoon starts at On request and Zephyr Scale at On request.
Does Kameleoon or Zephyr Scale run on more platforms?
Kameleoon runs on Web, iOS, Android. Zephyr Scale runs on Web.
What is Kameleoon best used for?
Kameleoon is most often used for a european retailer whose legal team requires eu-hosted experimentation data and has ruled out us-only vendors, a team running both marketing page tests and product feature rollouts that wants one results engine rather than two disagreeing ones, a media site where client-side flicker on a test variant is visibly damaging the reading experience, an organisation re-tendering experimentation after optimizely or vwo pricing changes and wanting an independent european vendor. Of those, a european retailer whose legal team requires eu-hosted experimentation data and has ruled out us-only vendors and a team running both marketing page tests and product feature rollouts that wants one results engine rather than two disagreeing ones are not what Zephyr Scale is typically brought in for.
What can Kameleoon do that Zephyr Scale cannot?
Kameleoon covers Visual A/B test editor, Server-side experimentation, Feature flags, Anti-flicker engine.

Answered from the vendors’ own pages

Kameleoon: Does Kameleoon publish pricing?

No. Pricing depends on monthly tested users and which capabilities you licence, and requires a sales conversation.

Zephyr Scale: How much does Zephyr Scale cost?

Zephyr Scale pricing is not published on the website. Three tiers are available: Essential, Standard, and Advanced, plus QMetry for Jira. Contact SmartBear or visit Atlassian Marketplace for pricing details.

Source
Kameleoon: Can I keep data in the EU?

Yes. EU hosting and a GDPR-first consent model are among the main reasons European buyers shortlist it.

Zephyr Scale: Is there a free trial available?

Yes, Zephyr offers free trials for Essential, Standard, and Advanced tiers, as well as for QMetry. Visit the product page to start a trial.

Source
Kameleoon: Does it do feature flags as well as A/B tests?

Yes, through server-side SDKs, sharing audiences and results with the visual testing side.

Zephyr Scale: Does Zephyr Scale work outside of Jira?

Zephyr Scale is tightly integrated with Jira for test management. For standalone test management outside Jira, SmartBear offers QMetry as an alternative.

Source
Kameleoon: How does it compare with Optimizely?

Similar capability at a smaller scale. Kameleoon's advantages are European data residency and an independent vendor; Optimizely's are ecosystem size and partner availability.

Share

Related pages

More on Kameleoon

More on Zephyr Scale

Keep looking

Other head to heads