ScaleChart: Size Chart & Guide

Help customers pick the right size with size charts &...

by Scalechart LLC · Launched: January 2026 · Free plan available.

5.0 (30) on Shopify Used by 55 Shopify stores Built for Shopify

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ScaleChart adds AI size guides and a fit recommender to product pages to cut wrong-size returns, plus colour swatches, sticky cart, and post-purchase upsells.

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About ScaleChart: Size Chart & Guide

When customers pick the wrong size, you lose sales and face costly returns. ScaleChart is a size chart builder that creates custom AI charts and fit advice to reduce returns. Auto-generate a chart from a photo or text, then auto-assign or bulk-apply it across products. Show it in a mobile-friendly popup, tabs, or theme-native dropdown. Add image and color swatches, a sticky add-to-cart bar, cart upsells, and one-click post-purchase offers. Replaces 5-6 apps with unit conversion and translations.

Last verified: September 14, 2026 · Aging

App details

Developer: Scalechart LLC
Category: Store design
Pricing: Free plan available
Launched: January 2026
Rating: 5.0 (30) on Shopify

Key features

Publish Up to 2 Size Charts
Responsive, Dynamic Size Guides
Fully Customizable Design
Auto Unit Detection by Customer Location
Import Charts via Product Description

Integrations with:

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2 plans · starts free · 14-day free trial

Free Plan

Free

Premium Plan

$19.99/month

Plans and prices as listed on the Shopify App Store.

Ratings & reviews

based on 44 Shopify App Store reviews

Use the arrows to read individual reviews

App works really great and very helpful for our e-com store. They also have a very accommodating support team we can ask for help anytime. Thanks, Rabia!

— Maya's Copper Tel-Aviv

It is a great app. You have it all together, like swatches, bundles, size chart, etc. Service is perfect.

— Savrionica

Works really well and has saved us money. Support team is quick and helpful whenever we have questions. Would recommend to other Shopify store owners.

— Hugo Rose California

I’m very happy with ScaleChart. The app offers so many useful features and possibilities, and it makes managing things like size charts and other product page features much easier. What really stands out to me is the customer support. Whenever I have a question or run into a problem, they respond incredibly fast. They’re also genuinely friendly and actually take the time to help you properly inst...

— Wiktoria Warszawa

Perfect App

— Jollie Boutique

I really like this app, so many options to customize your store from swatches, size chart, cart, upsell. Highly recommend and their support is amazing as well!

— コハナ京都 KOHANA KYOTO

All the apps you are looking for in one app, saves lots of money and works perfect!

— Amadas Boutique

Very usefull app and owners are very helpfull

— Elvora Sydney

App works amazing, it will save you a lot of time and money!

— Maria Lina

I stopped paying for 3 apps worth 50+ EUR because of this one app and got MORE in return. Next to that their support agent Rabia can help you by adding features HERSELF in your shopify. Amazing experience would recommend!

— Boutique Mia Québec

I’m very happy with the Scalechart app! It works great, and the customer service was incredibly helpful with the installation. They guided me through everything quickly and professionally. Great app and excellent support, highly recommended!

— Flairium

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— The Bennett Family

One of the best apps in shopify for real, it does a lot of things from bundels, color swatches to size charts. And their customer service is great. Rabia, resolved for me a thing that i couldnt resolve alone. Really recommended.

— Marie et Camille

Amazing app! Very affordable price for the value they have to offer and their support team is helpful. I recommend anyone using this if they are running a fashion store.

— Elyse Boutique

This is the best app I've found for size charts, swatches, cart features and more. The support team is great as well. They respond fast and fix things quickly. Highly recommended!

— Rose Paris

The assistance and support are truly incredible, and for this price, you get an innovative app that can take a huge load off your e-commerce operations. I highly recommend it.

— Elanom

very good

— Liora London

This app is honestly a total game changer. It's incredibly easy to use, and whenever you have a question or need help, you get fast, top-notch support every time. It also comes packed with an upsell cart, a size chart/swatch feature, and tons of other really handy functions. My cart now looks amazing. Things that used to be a hassle to fix are now sorted in no time, and for sizing you can instantl...

— Ashbury & Finch

Best app where you can find all features you want. and the support is very reactive and do their best to get the best experience from it

— GrossoModoo

I really had the best experience with these guys! Their service is on point fast replies they even tracked my post purchase funnels and helped me improve it.

— Lina Boutique London

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