Free and open first

Best Conversion Rate Optimisation Tools in 2026

These tools let teams test digital experiences and measure visitor responses to those changes. Their capabilities can include visual editors, personalisation, heatmaps, session recordings and work across web or mobile environments.

22 apps
Research read 28 Sept 2026
How the order is worked out

1

GrowthBook

Free plan Open source AndroidAPIExtension+3

Choose GrowthBook for warehouse-based experimentation and feature management with a choice of cloud or self-hosted deployment.

8.9 Free plan · paid from $40/user/mo Visit site
2

ABtesting.ai

Free plan APIWeb

ABtesting.ai is suited to landing-page owners who want automated experiment suggestions and a free first experiment.

7.4 Free plan Visit site
3

Personyze

Free plan AndroidAPIiPhone+1

Personyze combines real-time personalization, recommendations, and testing, with consent controls and a free plan.

7.1 Free plan · paid from $149/mo Visit site
4

Statsig

Free plan AndroidAPIExtension+3

Statsig combines testing, release controls, and product analytics in one platform, with a free Developer plan and Pro at $150 a month.

7.0 Free plan · paid from $150/mo Visit site
5

FigPii

Free plan Web

FigPii combines experimentation with tools for observing and collecting feedback about website visitors. The free plan has a monthly visitor limit, while paid plans begin at $149.99/mo.

6.9 Free plan · paid from $149.99/mo Visit site
6

Apertio

Free plan Web

Apertio provides bounded, server-rendered A/B testing for Next.js applications while avoiding client-side script injection.

6.8 Open source Visit site
7

Nelio A/B Testing

Free plan Web

Nelio A/B Testing brings a wide range of experiments, behavior maps, and conversion reporting into WordPress.

6.8 Free plan Visit site
8

Omniconvert Nexus Customer Intelligence

Free plan Web

Nexus brings customer segmentation, value tracking, NPS analysis, and audience syncing together for Shopify brands.

6.7 Free plan Visit site
9

AB Tasty

Free trial AndroidAPIExtension+4

AB Tasty combines experimentation and rollout tools with personalization, feature management, and analytics across web and mobile.

6.6 Pricing on request Visit site
10

Convert Experiences

Free trial AndroidAPIiPhone+1

Choose Convert Experiences if you need varied web and mobile experiments, advanced targeting, and full-stack SDK options.

6.4 15-day trial Visit site
11

Kameleoon

Free trial AndroidAPIiPhone+1

Choose Kameleoon if your teams need experimentation across web, back-end, and mobile, with feature rollout controls and integrations.

6.1 From $495/mo · 30-day trial Visit site
12

Divisor

Free plan Web

5.9 Free plan · paid from $109/mo Visit site
13

Split

Free plan AndroidiPhoneWeb

5.9 Free plan · 30-day trial Visit site
14

Eppo

Paid AndroidAPIiPhone+1

Eppo brings experiment analysis, feature controls, and AI evaluation into one platform, with support for mobile and server-side use.

5.8 Pricing on request Visit site
15

Evolv AI

Paid AndroidAPIiPhone+1

Choose Evolv AI if your organization needs experimentation and personalization with generative AI assistance and real-time variant adjustment.

5.8 Pricing on request Visit site
16

Otter

Free trial APIWeb

Otter brings visual, redirect, personalization and server-side experimentation into one web product. Its paid plans and absent feature flags are important considerations for prospective buyers.

5.7 From $49/mo · 14-day trial Visit site
17

Barilliance

Paid Web

Choose Barilliance if you want eCommerce personalization tools spanning product discovery, recommendations, AI shopping assistance, and real-time site content.

5.5 From $250/mo Visit site
18

VWO Personalize

Free trial Web

VWO Personalize combines audience targeting, real-time signals, experimentation, and campaign reporting for web experiences.

5.4 Pricing on request · 30-day trial Visit site
19

Adobe Target

Paid AndroidiPhoneWeb

Adobe Target combines multiple test types with audience targeting across web and mobile. Teams need to request pricing to assess the paid product's cost.

5.0 Pricing on request Visit site
20

Kaizen Platform

Paid Web

KAIZEN ENGINE combines behavior analysis, experimentation, accessibility support, and speed-related tag deployment in a web service.

4.9 Pricing on request Visit site
21

Optimizely Web Experimentation

Paid Web

4.0 Pricing on request Visit site
22

Webflow Optimize

Paid Web

4.0 Pricing on request Visit site

#1Places #1, #2, #3, #4, #5 on this list can be bought by the makers of the software on it. See the price

Compare free-plan availability, trial terms, starting prices and licence conditions before choosing. Check monthly visitor allowances, experiment types, supported platforms and whether the tool runs as a hosted service, API, extension or self-hosted setup.

Questions

Can I use a conversion rate optimisation tool for free?

Yes. Several entries list a free plan, while others are paid, use pricing on request or provide a trial.

Which platforms are supported?

The list covers web, API, iOS, Android, extensions and self-hosted setups. Check the platform entry for the tool you are considering.

Are any of these tools open source?

Yes. Some entries provide open-source code, including Apertio. Review the licence before hosting or modifying code.

Which starting prices are listed?

The listed starting prices are $40 per user per month for GrowthBook, $109 per month for Divisor, $149.99 per month for FigPii and $250 per month for Barilliance.

What features can I compare?

You can compare free-plan status, paid-from pricing, experiment types, visual editors, monthly visitor limits, heatmaps, session recordings and personalisation.

Questions

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