Testing · head to head
CircleCI vs Kameleoon

Kameleoon
Testing
A/B testing and feature experimentation with a hybrid client and server-side engine
- From
- On request
- Rated
- -
The short version
- Only CircleCI has a free tier, so it costs nothing to try first.
- Each has a real cost: CircleCI the free plan covers 6,000 build minutes and 5 active users a month; 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.
- Prices and features above were last checked on 31 August 2026.
Where they differ
Only the attributes on which CircleCI and Kameleoon actually diverge.
Identical on both: 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 CircleCI
Nothing recorded that Kameleoon does not also cover.
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
What people use each for
The jobs each tool is most often brought in to do.
CircleCI
- Continuous integration pipelines for application codenot Kameleoon
- Parallel test execution across containersnot Kameleoon
- Docker-based builds with layer cachingnot Kameleoon
- Deployment pipelines with approval gatesnot Kameleoon
- Self-hosted runners for private infrastructurenot Kameleoon
Kameleoon
- A European retailer whose legal team requires EU-hosted experimentation data and has ruled out US-only vendorsnot CircleCI
- A team running both marketing page tests and product feature rollouts that wants one results engine rather than two disagreeing onesnot CircleCI
- A media site where client-side flicker on a test variant is visibly damaging the reading experiencenot CircleCI
- An organisation re-tendering experimentation after Optimizely or VWO pricing changes and wanting an independent European vendornot CircleCI
Where each one falls short
Documented limitations, not opinions. Every one is a constraint you would hit in normal use.
CircleCI
- The free plan covers 6,000 build minutes and 5 active users a month
- Active users are billed at $15 each beyond the included five, and an active user is anyone who commits to a project
- Everything runs on credits, so compute, Docker layer caching at 200 credits a job and IP ranges at 450 credits per GB all draw from the same pool
- Network and storage overage costs 420 credits per GB
- Free credits expire monthly with no rollover, and paid credits expire after a year
- Scale is annual billing only
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.
Pricing, plan by plan
CircleCI
Free- FreeFree
- Up to 6,000 build minutes (small Docker resource class)
- Up to 5 active users per month
- 30,000 free credits per month
- Performance$15/month
- 30,000 credits included monthly
- 5 active users included (additional users $15/month each)
- 80x concurrency
- Scale$null/year
- Custom number of credits
- Customizable user limits
- Unlimited concurrency
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
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.
Questions people ask
- Is CircleCI or Kameleoon better?
- Neither clearly leads. CircleCI starts at Free and Kameleoon at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
- Which is cheaper, CircleCI or Kameleoon?
- CircleCI has a free tier; the other does not. Paid plans start at Free for CircleCI and On request for Kameleoon.
- Does CircleCI or Kameleoon run on more platforms?
- CircleCI runs on Web. Kameleoon runs on Web, iOS, Android.
- Can I use CircleCI for free?
- Yes. CircleCI has a free tier, so you can try it without paying. Kameleoon starts at On request.
- What is CircleCI best used for?
- CircleCI is most often used for continuous integration pipelines for application code, parallel test execution across containers, docker-based builds with layer caching, deployment pipelines with approval gates. Of those, continuous integration pipelines for application code and parallel test execution across containers are not what Kameleoon is typically brought in for.
- What can CircleCI do that Kameleoon cannot?
- Kameleoon covers Visual A/B test editor, Server-side experimentation, Feature flags, Anti-flicker engine.
Answered from the vendors’ own pages
CircleCI: How much does CircleCI Performance plan cost?
CircleCI Performance plan costs $15 USD per month and includes 30,000 credits, 5 active users, 80x concurrency, 5 GB network, and 2 GB storage. Additional users beyond 5 cost $15 each per month.
SourceKameleoon: Does Kameleoon publish pricing?
No. Pricing depends on monthly tested users and which capabilities you licence, and requires a sales conversation.
CircleCI: Can I purchase additional credits on CircleCI Performance plan?
Yes, additional credits are available at $15 for every 25,000 credits purchased. Paid credits roll over month to month and expire after one year; free plan credits expire monthly without rollover.
SourceKameleoon: 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.
CircleCI: What is included in the CircleCI free plan?
The free plan includes up to 6,000 build minutes per month (small Docker resource class), 5 active users, 30,000 free credits monthly, 30x concurrency, 1 GB network, 2 GB storage, and community support. No credit card required.
SourceKameleoon: 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.
CircleCI: What are the Scale plan limits and pricing?
CircleCI Scale plan offers custom pricing billed annually with unlimited concurrency, 50 GB network, 200 GB storage, customizable credits and users, enterprise controls, and GPU environment access. Requires contacting sales for a quote.
SourceKameleoon: 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.
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