The best A/B testing tools in Spanish in 2026

Quick comparison

Prices exclude tax, in the currency each vendor publishes.

How to choose in two minutes

Ask yourself three questions. First: do you have someone to build the variants? If not, rule out the tools that need a developer for anything beyond the basics. Second: do you need to test on the server or only on the website? If it is only the website, do not pay for a product platform. Third: how much traffic do you have? With few conversions a month any tool will take a while to give you a result, so check the sample size calculator first.

Bixlow

An AI CRO agent: it analyses your site, proposes hypotheses ranked by impact, builds the variants on your real site and tells you when there is a winner, using Bayesian statistics. The website, app and support are in Spanish.

Best for: marketing and ecommerce teams with no developer for CRO. Worst for: anyone who needs feature flags, server-side tests or ready-made integrations with other tools.

Wingify (VWO + AB Tasty)

In September 2026 VWO and AB Tasty merged under the Wingify brand. It is a full suite: experimentation, personalization, behavioural analytics, feature flags and enterprise security certifications. It has a Spanish website. It does not publish prices and charges by monthly active users.

Best for: mid-sized and large companies that want everything from one vendor. Worst for: a small store that only wants to run a few tests.

Mida

A light tool with a Spanish website, a visual editor and a generative AI (MidaGX) that creates variants from a description. Its free plan includes up to 3 live tests.

Best for: teams that already know what to test and want something simple and cheap. Worst for: anyone who wants a detailed explanation of the statistical method, which its website does not describe.

Kameleoon

A French platform for large companies, with prompt-based experimentation (PBX), feature flags, server-side tests and demanding compliance options. Its website is in English, French and German.

Best for: large companies with a product team and strict security requirements. Worst for: small businesses working in Spanish or on a tight budget.

Optimizely

One of the classic names in experimentation, now part of a broader digital experience platform (CMS, commerce). It offers AI agents to come up with and build experiments, and its own statistics engine. It does not publish prices.

Best for: large companies already in its ecosystem. Worst for: anyone looking for a tool in Spanish or a price they can look up.

Convert

Very complete on the technical side: server-side tests, feature flags, over a hundred integrations, frequentist and Bayesian statistics and EU servers. In English.

Best for: agencies and teams with a developer who want full control at a public price. Worst for: teams without a technical profile.

Varify.io

A German tool with a flat rate and no traffic limit, with data hosted in Germany. The Pro plan adds prompt-based experiments and Bayesian statistics. Its website is not in Spanish.

Best for: high-traffic sites that do not want to pay per visitor. Worst for: anyone who wants the tool in Spanish.