Conversion rate optimization for Shopify brandsTry it free for 14 days
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Your next conversion rate optimization agency isn’t an agency.

HI reads Shopify, GA4, Klaviyo, Click Context and Zigpoll, uses your Intelligems results if you test there, and posts to your store’s own Slack channel.

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What HI Engine does on its own.

  • Signals and CRO ideas

    Conversion leaks in plain language, priced per month; ideas ranked by impact, effort and brand risk. Some come marked “we wouldn’t touch this.”

  • HI Agent

    Writes the theme code, runs Theme Check and publishes to a draft theme, then waits for your approval. Every change logged. One-click rollback.

  • A/B testing

    Every fix runs as an experiment: visitors split 50/50 per browser, no third-party A/B app needed. Winners stay, losers roll back.

HI connects to Shopify, Google Analytics 4, Klaviyo, Slack and three more tools.

Using something else? Custom integrations too: if a tool has an API, that’s all HI needs.

7 integrations

  • Shopify

    Commerce

    Your theme, catalog and orders, read-only until you ask for a change. Each fix gets its own draft theme, named after the task.

  • Klaviyo

    Commerce

    Email revenue and campaign performance, next to your store data.

  • Google Analytics 4

    Analytics

    Sessions, traffic sources and funnels. HI turns the drop-offs into Signals.

  • Click Context

    Analytics

    Click maps and funnels from real visitor behavior. HI reads them for conversion leaks.

  • Zigpoll

    Analytics

    Your customers’ own answers on why they buy and what holds them back.

  • Intelligems

    Testing

    If you already test in Intelligems, HI reads those results. Without it, HI runs its own tests.

  • Slack

    Workspace

    Your store gets its own channel. Every opportunity arrives there with its monthly estimate and a review link, and you can ask HI about it.

Custom integrations

A tool that isn’t listed, or one your team built? If it has an API, HI can connect to it. Ask about a custom integration

What merchants say

Dore & Rose: a white silk robe and the burgundy silk eye mask, on a hotel bed

“With HI Engine, one person now gets the same CRO results that used to take a team of five.”

Jelmer HendriksDore & Rose
  • KyleFounder at Swoveralls

    “For us, HI Engine did for CRO what Canva did for design.”

  • Fulton: beige felt slippers with the Fulton name on the side, worn on a sofa beside a sleeping boxer
    Libie Motchan DuggalFulton

    “HI Engine feels like magic; the opposite of AI slop. Building and launching CRO tests is so easy, I keep thinking, ‘Wait, it can actually do that?!’ At Fulton, it’s meaningfully impacted our conversion rate, engagement rate, and AOV.”

  • ElizabethCo-Founder, The Great Fantastic (ex-Brooklinen)

    “HI Engine takes so much of that work and does it for you. It’s an incredibly impressive tool.”