Customer & Marketing
Multivariate testing consists in comparing several combinations of variables (titles, images, colors, etc.) to determine which one best improves an indicator (conversion rate, average revenue per visit, clicks, etc.). Unlike the classic A/B test, which is limited to two variants, multivariate testing makes it possible to optimize more complex pages or experiences by simultaneously testing different versions of several elements. This type of experimentation is gaining in popularity because it reduces the time needed to identify the best combination and maximizes the use of available traffic.
For a multivariate test to be effective, the platform must offer an intuitive editor, a robust statistical methodology (Bayesian or frequentist) and real-time analysis to identify the winning variant. This study presents the main tools available in 2025-2026, their functionalities, prices and advantages.
Multivariate testing (MVT) is often described as a set of A/B/n tests run in parallel: several variables on the same page are modified at the same time, and all combinations are tested in competition. This method offers a more detailed view of the impact of each variation and the interactions between variables. However, it requires a high volume of traffic to obtain statistically significant results, as the number of variations can rapidly increase.
Before choosing an MVT tool, it is essential to identify your needs (type of site, volume of traffic, available resources) and evaluate criteria such as :
Ease of use: visual editor, drag-and-drop, integration without code or via API.
Statistical engine: Bayesian methodology (calculates probability of success) or frequentist methodology (based on confidence levels); presence of a significance calculator.
Client-side or server-side testing: depending on whether changes are to be made to the interface (front-end) or the application logic (back-end).
Personalization and segmentation: the ability to target audience segments, personalize content in real time or use artificial intelligence algorithms.
Pricing: models based on visitor volume, events or annual licenses.
The following table presents a selection of multivariate testing tools in 2026. The columns summarize their main features, their advantages and a price indication. Prices vary according to the volume of traffic and the modules chosen; the amounts indicated are orders of magnitude to aid comparison.
| Platform | Multivariate functions and key features | Key benefits | Pricing and trial |
|---|---|---|---|
| VWO (Visual Website Optimizer) | Offers A/B, multivariate and multi-URL testing. The visual editor lets you modify pages without code; the platform offers heatmaps, session recordings and a Bayesian statistical engine with multi-armed bandit algorithm. | High functional maturity; advanced segmentation; integration with CMS and GA4. | Customized plan; approx. US$199/month; 30-day trial. |
| Optimizely | Offers web and full-stack experiences, with a visual editor, multivariate testing and feature flags management. An integrated significance calculator provides real-time analysis for deciding when to stop a test. | Complete ecosystem (experimentation, customization, CMS); client- and server-side testing; omnichannel support. | Pricing by quotation; no free plan; trial available. |
| AB Tasty | Conversion rate optimization (CRO) platform with unlimited multivariate testing. Features a WYSIWYG editor, a test library and a Bayesian engine to calculate the probability of victory for each variant. | Mobile and web integration; advanced customization; granular segmentation. | Custom pricing; entry estimated at ~US$20,000/year; trial available. |
| Kameleoon | European solution with multivariate and multi-page testing. Uses artificial intelligence to predict visitor intent and adjust traffic allocation. Available in front-end and full-stack versions. | Powerful real-time personalization; Bayesian engine; predictive AI. | Customized annual licenses; entry ~US$25,000/year. |
| Convert Experiences | Offers unlimited A/B and multivariate testing, a visual editor, multipage testing and full-stack mode. Emphasis on RGPD compliance and privacy protection. | Real-time dashboard; advanced segmentation; flexible API. | From US$299/month; free trial available. |
| Statsig | Offers A/B and multivariate testing with a sequential statistical engine incorporating CUPED variance reduction. Includes a significance calculator and real-time dashboard. The free plan authorizes up to 2 M events per month. | Excellent value for money; robust API; full-stack support; continuous optimization. | Free plan up to 2 M events/month, then progressive billing. |
| Omniconvert Explore | E-commerce-oriented solution with A/B, multivariate and pop-up testing. Offers advanced segments and a centralized dashboard. | Ideal for online stores; integrated personalization; pop-up campaigns. | From US$390/month; free trial. |
| Varify | European platform with cookieless tracking and easy-to-deploy multivariate testing. | Intuitive interface; good value for money; no cookies. | 129/month (€99/month annual); 30-day trial without card. |
| Adobe Target | Tool from the Adobe Marketing Cloud ecosystem offering multivariate testing, advanced targeting and AI for personalization. Integrates with Adobe Analytics. | Suitable for large enterprises; precise segmentation; detailed reporting. | No free plan or trial; pricing by quotation. |
| Qubit | Personalization platform based on artificial intelligence, offering multivariate testing and product recommendations. | Fine segmentation; focus on e-commerce; recommendation algorithms. | Price on request; no free plan. |
| SiteSpect | Hybrid client/server solution offering multivariate testing, behavioral segmentation, anti-flicker and tag-free integration. | Good server-side performance; ideal for high-traffic sites; multi-channel support. | Free trial; non-public pricing; client, server or combined packages. |
| Webtrends Optimize | Optimization suite with A/B testing, multivariate testing, personalization and detailed reporting. | Enables unlimited experiments; includes real-time personalization. | Flexible pricing; no list price. |
| Shogun | Dedicated solution for Shopify stores. Allows multivariate testing of pages and sections in a visual editor or via code, with integrated significance calculator and automatic deployment of the winning variant. | Native Shopify integration; no code required; autopush of winner. | Subscription model; non-public pricing; free version available to get started. |
VWO (Visual Website Optimizer) is one of the most established solutions on the market. In addition to A/B and multivariate testing, it includes heatmaps, session recordings and funnel analysis to visualize visitor behavior. Its statistical engine is based on a Bayesian approach combined with a multi-armed bandit algorithm that automatically adjusts traffic distribution towards winning variants. The interface enables visitors to be targeted on the basis of demographic, geographic or behavioral criteria. Billing is customized according to traffic volume, and typically starts at around US$199 per month. A free 30-day trial allows you to evaluate the platform.
Optimizely offers a complete experimentation ecosystem covering web, mobile, full-stack and feature flags testing. The platform features a visual editor for creating code-free experiments, multi-page tests and a significance calculator that displays the probability of victory for each variant in real time. The Stats Engine feature automatically determines when to stop a test, thus avoiding peeking bias. Optimizely integrates with various CMS and is available in Web Experimentation and Full Stack versions. Its high cost and lack of a free plan limit its adoption by small businesses, but a trial version is available on request.
AB Tasty is renowned for its ease of use and customization capabilities. The solution offers multivariate testing with an unlimited number of variants, a WYSIWYG editor and advanced segmentation functionalities. Its Bayesian engine calculates the probability of a variant’s success, enabling faster decision-making. AB Tasty also integrates personalization, notification and product customization modules. Pricing varies according to the modules chosen, with an entry cost of around US$20,000 per year.
Kameleoon is distinguished by its integration of artificial intelligence. The platform analyzes behavior in real time and predicts visitor intent, automatically targeting users likely to convert. Bayesian motoring optimizes traffic allocation, and the tool offers multivariate testing, multi-page testing and a full-stack version to manage server-side experimentation. Pricing is customized, starting at around US$25,000 per year. Kameleoon is suitable for companies looking for real-time personalization and fine segmentation.
Convert Experiences focuses on confidentiality and RGPD compliance. Multivariate tests are unlimited, and the visual editor enables rapid modifications. The tool offers multipage testing and an API for integrating full-stack tests. Its anti-flicker features and the ability to inject JavaScript at different levels make it attractive to technical teams. Pricing starts at around US$299 per month, and all features are included.
Statsig combines a sequential engine with CUPED variance reduction, enabling faster detection of effects. The dashboard displays a significance calculator and a statistical power indicator. The feature flags API enables server-side tests to be deployed on different platforms. Pricing is based on event volume; the free plan allows up to 2 M events per month, making it a very affordable option for start-ups and SMEs.
Omniconvert Explore primarily targets e-tailers. In addition to multivariate testing, it offers personalized pop-ups, polls and NPS surveys. The tool connects to e-commerce platforms and offers advanced behavioral segmentation. Pricing starts at US$390/month; a free trial is available to assess the suitability of the solution.
Varify is a relatively affordable solution, with an entry price of €129/month or €99/month annual subscription. Its testing system is “cookieless”, which facilitates RGPD compliance. The platform offers a simple visual editor and a multivariate mode, making it accessible to small and medium-sized businesses. The 30-day free trial allows you to test all functionalities without a credit card.
For large enterprises, solutions such as Adobe Target and Qubit offer multivariate testing combined with artificial intelligence and personalization modules. Adobe Target integrates with Adobe Analytics and offers comprehensive reporting. Qubit focuses on personalization and product recommendation, using segmentation algorithms and AI analysis. These tools are powerful but require high budgets and significant traffic, and their pricing is only available on request.
SiteSpect offers a hybrid architecture (client-side or server-side testing) with a focus on performance and security. The tool offers multivariate testing, advanced segmentation and integrated anti-flicker. A free trial is available, but prices are available on request.
Webtrends Optimize provides a complete experimentation suite with multivariate, customization and detailed reporting; pricing is flexible and traffic-dependent.
Shogun, designed for Shopify stores, lets you create variants via a visual editor or code, and incorporates a significance calculator that automatically signals when a variant is a winner. Deployment of the winning version is just a click away, with no duplication or further development required. A free starter plan is available for testing the solution.
Evaluate traffic volume: multivariate tests require significant traffic to obtain reliable results. Smaller sites may want to start with simple A/B tests before adopting a multivariate approach.
Consider complexity: some tools, such as Optimizely or Kameleoon, are very comprehensive but require technical expertise; others, such as Varify or Shogun, are designed for teams with fewer resources.
Analyze the methodology: Bayesian engines (AB Tasty, VWO, Kameleoon, Statsig) offer dynamic traffic adjustments; frequentist engines may require a predefined minimum sample.
Look at the integration and ecosystem: some solutions integrate with specific CMS (Shogun for Shopify), while others are full-stack (Statsig, Optimizely) or specialized for e-commerce (Omniconvert, Varify).
Compare long-term costs: prices for the leaders (Optimizely, Adobe Target) can exceed US$60,000 per year, while alternatives such as Statsig or Varify offer free or affordable plans.
Multivariate testing is a powerful tool for optimizing complex interfaces and accelerating data-driven decisions. The market offers a wide variety of platforms, ranging from costly, comprehensive solutions for large enterprises (Optimizely, Adobe Target, Kameleoon) to more accessible tools for SMEs (Statsig, Varify, Shogun). The choice will depend on traffic volume, personalization objectives, budget and available technical skills. For an organization new to experimentation, it’s a good idea to try out several solutions thanks to free trial periods, and choose the one that offers the best combination of functionality, ergonomics and value for money.