CustomFit AI A/B Testing & CRO

Develop by Shopify

$99-$199

/ Month

Free plan available 14 Days Free Trial

Boost sales with no-code website personalization & A/B testing

A/b testing

Multivariate testing

No-code personalization

Landing page optimization

Popups

Deep analytics

Privacy compliant

About CustomFit AI A/B Testing & CRO

Launched May 15, 2023

Built by Shopify

Address

Waldeck Pyrmontlaan 12, Wassenaar, 2243HM, NL

Website Support Portal Privacy policy Tutorial FAQ Document

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Introduction Video

Description

No-code A/B Testing and Website Personalization CRO platform built for marketers

CustomFit.ai is an easy no-code platform for marketers for A/B testing, personalization, and popups. Easily run A/B tests on any page—product pages, home page, checkout page—to identify what drives the most sales. Beyond modifying existing content, you can add new content blocks with drag-and-drop simplicity, such as UGC video reels, recently viewed or purchased items, and more. Leverage AI Machine Learning to optimize conversion rates (CRO), boost revenue, and enhance upselling strategies

AI Conversion Optimization: Leverage Machine Learning to optimize conversions
No code, A/B Testing, Split URL testing, Theme A/B testing, and A/B/N testing
Easy to use No code visual editor to personalize product pages & landing pages
Add new blocks like Video Reels, Recently Viewed items, and more via drag-n-drop
SEO-friendly with fast performance and a flicker-free experience.

Pros

Easy to use with no-code visual editor for personalization
Enables website and product landing page personalization
Supports A/B testing and multivariate testing
Provides deep insights and analytics data to understand visitor behaviors
Faster performance with a flicker-free experience
Privacy compliant and secured, with SOC II Type II and ISO 27001 certifications

Cons

Limited to users who need no-code solutions, potentially less flexible for developers
Possible learning curve for users unfamiliar with A/B testing and personalization concepts
The effectiveness of personalization heavily depends on the quality of initial setup and configurations
May require continuous monitoring and adjustments to maximize benefits
Pricing information and cost-effectiveness not mentioned in the description

Top Helpful Reviews

Reginald Men

Jul 03, 2025 on Shopify

We've had a great experience using CustomFit.ai on our website. The platform has been incredibly helpful for running a variety of A/B tests, allowing us to experiment with different content, layouts, and user journeys seamlessly. What truly stood out is the performance and reliability — the testing outcomes were accurate and actionable, helping us make confident decisions that improved our conversion rates. CustomFit.ai gave us the flexibility to personalize user experiences and optimize them in real-time, which had a direct impact on our business growth.

GIVA Jewellery

May 23, 2025 on Shopify

I was amazed at how quickly we could start using CustomFit.ai. Setting up A/B tests and personalizing our pages was straightforward, with no coding required. The performance is excellent, and the best part- support team is always just a message away and super helpful!

Knya

Apr 22, 2025 on Shopify

The support team at CustomFit.ai is amazing! Super responsive, always helpful, and they’ve made our experience so much smoother. It’s great knowing we can reach out anytime and get quick answers.

Typsy Beauty

Feb 17, 2025 on Shopify

We're huge fans of CustomFit.ai at our Shopify store. It's made A/B testing and personalization so much easier and more effective. I have tried using A/B platforms earlier and have found them complex for a non-techie. The platform is super fast & very easy to use. It doesn't cause any annoying flicker. And whenever we have a question, their support team is always quick to help.

Innovist

Dec 11, 2024 on Shopify

CustomFit.ai is an incredible tool for any Shopify store looking to optimize their customer experience. We’ve used it for both A/B testing and personalization, and it’s been fantastic. The platform is fast, easy to navigate, and our site runs smoothly with no flicker. Customer support is always just a message away and super helpful

Conscious Chemist

Oct 27, 2024 on Shopify

```"CustomFit.ai is the perfect tool for anyone looking to improve their Shopify store through A/B testing and personalization. It’s fast, doesn’t require any coding, and our site runs flawlessly with no flicker. The customer support team has been a huge help, always there when we need them." ```

The Sleep Company

Sep 01, 2024 on Shopify

CustomFit.ai has been a game-changer for our store. We can run detailed A/B tests and personalize content without needing a developer. The platform is super quick, and our site runs without any flicker, which is crucial for us. Plus, their customer support is exceptional—they always have our back.

Pattrn.hair

Aug 26, 2024 on Shopify

Healofy

Jun 08, 2023 on Shopify

I recently had the pleasure of using CustomFit for our D2C brand, Healofy, and I must say it has improved our marketing strategy. As a hardcore marketer at Healofy, I'm always on the lookout for tools that can enhance our brand's performance, and CustomFit has exceeded my expectations. The user-friendly no-code approach to website personalization and A/B testing has made it easy for us to create tailored experiences for our customers. With seamless integration into Shopify, getting started was a breeze. Since implementing CustomFit, we've experienced decent growth in conversions, AOV and increased customer engagement.

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