Hi Engine

What Hi Engine does for Shopify brands

• ●Weekly AI-ranked CRO actions with revenue estimates -> incremental CVR improvement over time
• ●200+ funnel signals monitored continuously -> problems surfaced before they compound
• ●Shopify, GA4, and Klaviyo consolidated in one view -> hours per week of manual analysis eliminated

Overview

HI Engine sells AI conversion rate optimization software for Shopify stores. It finds where a store loses sales, writes the fix into the store's theme on a draft theme, and A/B tests it after the merchant approves. It is meant to replace conversion rate optimization reports that never get built.

For Shopify brands

• ●It finds conversion problems and ranks ideas by impact, effort and brand risk, each sized in dollars per month.
• ●It writes each fix into the theme as Liquid, JSON and CSS on a draft theme, with no page builder or injected scripts.
• ●It runs each fix as a 50/50 A/B test, so no separate testing app is needed, and rolls back changes that lose.

How it works

A brand books a demo, which is a live walkthrough on its store's data, then starts a 14-day free trial. HI Engine ships the first 3 fixes in the first month, each previewed on a draft theme and approved by the brand before it goes live. The brand pays after the fixes are live and results are visible.

Built for

Shopify brands; the Enterprise option is listed as best for 8- and 9-figure Shopify brands and agencies.

Pricing

14-day free trial, with the first 3 fixes shipped in the first month and payment only after the fixes are live and results are seen. After the trial, custom pricing from $1,500/month based on store size, credit usage and results. Enterprise has unlimited credits, unlimited connected stores and bespoke pricing.

Products

• ●HI Engine Conversion rate optimization platform with signals, CRO ideas, a task board and A/B tests for Shopify stores.
• ●HI Agent Writes theme code, runs Theme Check, publishes to a draft theme and waits for approval.
• ●HI Agent in Slack Gives each store a Slack channel for opportunities with monthly estimates, review links and questions.
• ●Signals and CRO ideas Describes conversion leaks in plain language, priced per month and ranked by impact, effort and brand risk.
• ●A/B testing Runs each fix as an experiment with a 50/50 visitor split per browser.

Integrations

Buyer notes

• Nothing goes live without the merchant's approval; changes go to a draft theme first and can be rolled back in one click.
• Changes are written as native Liquid, JSON and CSS, validated by Shopify Theme Check, with no page-builder app or injected scripts.
• Shopify and Google Analytics 4 are the required integrations; theme, catalog and orders stay read-only until a change is requested.

From Hi Engine's own site and Shopify App Store listings, as of 2026-10-30.