Skip to content
MerchantPick
Smart Size Chart & Size Guide icon

Smart Size Chart & Size Guide

Size charts, size guides & an AI fit finder to...

by SmartSize · Launched: January 2022 · Free plan available.

4.9 (151) on Shopify Used by 3,303 Shopify stores +203 installs · 30 days Built for Shopify

See which stores use it — by country, co-installs & competitive gaps → Unlock with Pro

Manage this app

Verify your developer profile to earn a badge and build trust for your app.

Boost conversions and cut returns with SmartSize’s size charts and size recommender. Launch in minutes and give shoppers instant size advice. No extra charges.

Get it on Shopify →

About Smart Size Chart & Size Guide

Build size charts, size guides and fit quizzes in minutes with SmartSize AI and a modular editor. Bulk import and export, upload an image or start from templates for men, women, kids and pets. Add tabs, AI translations, unit conversion and international sizing. Turn on "Find my size", an AI fit quiz and size recommender for clothes and shoes. Shoppers answer once and are remembered on every product and visit. Buttons auto-place on any theme, or we set it up. Connect Claude or any AI via MCP.

Last verified: November 3, 2026 · Fresh

App details

Developer
SmartSize
Category
Store design
Pricing
Free plan available
Launched
January 2022
Rating
4.9 (151) on Shopify

Key features

  • 2 size charts
  • Pre-made templates men, women, kids, pet
  • Create from image with AI
  • Automatic unit conversion
  • International sizing
Integrations with:

Checkout Claude Codex Color Swatch King: Variants Gempages MCP Shopify Admin Sidekick

4 plans · starts free · 14-day free trial

Free

Free

Starter

$9/month

Growth

$12/month

Pro 100

$19/month

Plans and prices as listed on the Shopify App Store.

Ratings & reviews

based on 95 Shopify App Store reviews

Use the arrows to read individual reviews

Works great and many opties!
— armastore.com
app is good, good service
— Wearduffled.com
Leslie helps me today to set up the smart size guide and recommender quiz. She was so helpful, knowledge and awesome.
— I love me more everyday
Super easy to use and set up! Everything works smoothly, and we haven’t had any issues at all. It makes creating and managing size charts so simple. We’re really hoping this helps our customers find the right size more confidently and reduces returns and exchanges. Fingers crossed and praying it makes a difference! Highly recommend!
— Sincerely, God
Ottima
— Bombafit
empty
— Industrie US
Amazing support team, set up a free trial and Leslie helped me set up my size charts with custom CSS formatting for over 2 hours. Can not recommend them enough!!!
— Happiness Project
Huge shoutout to Leslie and the rest of the team! They were exceptionally fast, friendly, and an absolute joy to work with. The app itself is fantastic, and the new AI addition makes setting everything up and managing the app so much easier. The customer service truly goes above and beyond. Highly recommend to any store owner looking for top-tier support and a great size chart solution!
— Athlétic Elegancé
They couldn't help me but gave me alot of helps with other works - they were very helpful recommend them
— Formen
This is a great app, with phenomenal customer support. Not sure i've ever experienced such great support before. They go above and beyond, any changes you need, they are willing to help with, and respond almost immediately. One of the best teams I've ever worked with.
— Broad & Strong
Expensive and hard to Setup.
— Footballarmy
Det ska va enkelt
— Paciscion
We recently switched to Smart Size after using our own size guides and it has really helped to streamline the appearance of our product pages, and is much more user friendly. It included most of the key features we were looking for, and the team have been so helpful and responsive with any specific changes or issues we've encountered. Thank you!
— Yes Friends
empty
— J&D Premium
This app has reduced my 'wrong size' returns by as much as 80% Love it!
— The Merino Polo
SmartSize is a user-friendly and intuitive app that's easy to use. The customer service is top-notch—Leslie and Elena always go above and beyond to answer questions, explain everything clearly, and resolve any issues quickly. Their support has been outstanding, making the overall experience seamless and enjoyable. I highly recommend SmartSize!
— Mara Blak
The App is simple to use, but powerful. We have only just implemented it, but I can see customers are already engaging with it and we are confident it will dramatically reduce returns - an important issue for a DTC online women's jeans brand! Customer support is genuinely excellent - I raised a query at 11am, received a response within a minute and was on a detailed discussion call an hour later....
— BELL ST
Smart Size has a very excellent customer care and the girl name is Leslie in the customer care team, she put in tremendous effort to resolve all the problem.
— InWeave
So far using the Size Chart, and it is amazing - clean and customizable. In process of setting up the size quiz, but so far looking very good compared to other similar apps we have tested.
— Elorélle
really great app/features. The customer support are really friendly, kind and fast with helping. i recommend there app.
— Lucien Uriano

Overview 1 / 20

You might also like

Alternatives to Smart Size Chart & Size Guide →

Are you an app developer?

Get your app in front of the merchants browsing this directory.

Explore the developer pages