Shopify App

The perfect fit,
in your store.

Add AI size recommendations, interactive size tables and virtual try-on to any Shopify store — in under 3 minutes, no code required.

Install on Shopify
−30%
Fewer returns
+12%
Conversion uplift
3 min
Setup time

What's included

Three tools. One block.

Find My Size

AI-powered size recommendations based on garments shoppers already own. No body scans, no measurements.

Size Table

Beautiful, interactive size guides with your brand's measurements. Always up-to-date, zero maintenance.

Virtual Try-On

Let shoppers see how garments look on them before buying. Powered by Fitit AI, no 3D models needed.

Setup

Up and running in minutes

  1. 01

    Install the Fitit app

    Find Fitit in the Shopify App Store and install it in one click. No code required.

  2. 02

    Add the block to your product pages

    In the theme editor, add the Fitit block to your product pages. Position it wherever you want the buttons to appear.

  3. 03

    Enter your Store ID

    Copy your Store ID from the Fitit dashboard and paste it in the block settings. That's it.

  4. 04

    Style & go live

    Customize button colors, border radius and labels to match your brand. Preview, then publish.

Install freeRead the docs
theme — product.liquid
<!-- 1. Add the Fitit app block -->
<!--    in your theme editor  -->

<!-- 2. Fitit does the rest ✓ -->

<div id="fitit-app"></div>

// Buttons appear automatically
// when the product is integrated

window.fitit = {
  storeId: 'YOUR_STORE_ID',
  storeMode: 'MPA'
}

Ready to reduce returns?

Join fashion stores already using Fitit to give shoppers the confidence to buy the right size.

Install on Shopify — it's free

No credit card required · Works with any Shopify theme