TL;DR
This guide ranks the 6 best size chart apps for Shopify in 2026, scored on features, price, setup, support, and overall value. You'll find a comparison table, a breakdown of each app, and a short guide to picking the right one for your store.
The top pick is Vitals. It builds image and table-based size charts, assigns them by product or collection, and tracks impressions and clickthrough, and it bundles those charts with 40+ other conversion apps under a single subscription for $29.99/month.
If you want the deepest sizing features on their own, specialist apps like MP and Kiwi are worth a look. But most merchants who add a size chart also need reviews, upsells, bundles and trust signals, and buying those as separate apps costs more than Vitals and slows your store down. Vitals gives you size charts plus everything else for one price.
Want to compare your options first? Keep reading.
Why do Shopify stores need a size chart app?
Size charts cut returns and recover sales that sizing doubt would otherwise lose. When a shopper isn't sure a product will fit, they either leave or buy and return it, and both outcomes cost you money.
Think about buying clothes online. You like the jacket, but you're between sizes and there's no way to check measurements, so you either gamble or close the tab. A clear size chart, with real measurements and a "how to measure" guide, answers the question on the spot and gives the shopper the confidence to buy. Returns drop because the size that arrives is the size they actually needed.
A size chart app gives shoppers that confidence. A good one does five things for your store:
- Reduces returns by helping shoppers pick the right size the first time.
- Recovers sales lost to fit uncertainty at the point of decision.
- Builds buyer confidence with clear measurements and guides.
- Matches your brand through customizable chart styling.
- Scales across your catalog by auto-assigning charts to products.
Shopify doesn't provide native size charts, so a third-party app is the practical way to add them. Your real choice is which app, and whether you want a tool that only builds charts or one that also handles the rest of your conversion stack.
That's why a good size chart app matters, and why we ranked the best ones below. Here's how we did it.
How we ranked these apps
We judged every app on this list against five criteria, in this order:
- Features. Chart types (image, table), targeting and placement, recommenders, translation, and anything beyond charts.
- Price. The starting cost, what's included at each tier, and how pricing scales as your store grows.
- Setup. How quickly you can build and place a chart on your product pages.
- Support. The help available when something breaks, from documentation to live support.
- Overall value. What you actually get for what you pay, including whether the app covers more than charts or leaves you adding (and paying for) others.
Vitals tops the list because it scores on all five at once: full size charts, plus 40+ other conversion apps, for one price, with one support team.
At a glance: 6 best Shopify size chart apps
6 best Shopify size chart apps in 2026
1. Vitals: Reviews, Bundles & 40+
Shopify App Store rating: 4.9 stars (2,578 reviews)
Best for: Stores that want size charts plus 40+ conversion apps under a single subscription.
Vitals is the best size chart app for Shopify, trusted by 30,000+ Shopify stores with 2,500+ five-star reviews on the Shopify App Store. Its Size Chart tool builds image-based charts from an uploaded image or table-based charts in a rich editor, with optional "how to measure" guide content. You assign charts per product or collection, deliver them as a popup triggered by a button you can place anywhere, and style the button, table, and modal to match your store.
With Size Charts, Vitals offers 40+ apps in a single subscription, including Product Reviews, Upsells, Product Bundles, Currency Converter, and Trust Badges. Most apps on this list only provide size charts and stop there. Vitals gives you size charts, and 40+ conversion apps your store needs to turn visitors into customers.
Key features
- Image-based and table-based size charts with a rich editor.
- Optional "how to measure" guide content above or below the chart.
- Per-product and per-collection assignment with configurable button placement.
- Chart analytics for impressions, clicks, and clickthrough rate.
- 40+ conversion apps including Product Reviews, Upsells, and Currency Converter.
- 24/7 real human support with permission-based direct settings edits.
Pricing
Why do Shopify brands choose Vitals?
The cost comparison settles it for most merchants. A standalone size chart app runs $5-$30/month on its own. Add a reviews app, an upsell app, and a currency converter, and you're past $100/month across four vendors, four dashboards, and four support queues to chase when something breaks. Vitals gives you those tools and 35+ more for $29.99/month, on a single lightweight script that keeps your store fast. For a store already using two other Vitals features, the size chart is effectively free at the margin.
2. Jotly Size Chart & Size Guide
Shopify App Store rating: 5.0 stars (62 reviews)
Best for: Stores that want fast, lightweight size charts.
Jotly is a size chart app built to load fast and stay lightweight, with charts you create from prebuilt templates using tabs, images, tables, or text. It assigns charts to products, collections, tags, and vendors, offers flexible button placement, and supports multiple languages, with analytics on higher tiers tracking add-to-cart by chart.
Jotly starts at $6.99/month with unlimited charts, scaling to translation features on Pro and add-to-cart analytics on the Analytics tier. Its focus on fast load times is its distinguishing feature, aimed at stores that don't want a chart app slowing their product pages.
Key features
- Prebuilt templates with tabs, images, tables, and text.
- Assign charts by product, collection, tag, and vendor.
- Flexible button placement and multi-language support.
- Add-to-cart analytics by chart on higher tiers.
Pricing
3. MP Size Chart & Size Guide
Shopify App Store rating: 5.0 stars (828 reviews)
Best for: Stores that want AI size recommendations.
MP Size Chart is a size chart app that pairs customizable charts with AI-powered size recommendations to guide shoppers to their fit. It offers 30+ templates with images, videos, and tabs, CSV bulk import, auto unit conversion, 20+ languages, and a single size guide page that auto-syncs all your charts.
MP starts at $6.95/month for up to 10 charts and 800 AI recommendation requests, scaling to unlimited charts and more AI requests on higher tiers. The AI fit recommendations are its distinguishing feature, helping shoppers who don't want to read a table find their size directly.
Key features
- AI-powered size recommendations.
- 30+ templates with images, videos, and tabs.
- CSV bulk import and auto unit conversion.
- 20+ languages and an auto-synced size guide page.
Pricing
4. BF Size Chart & Size Guide
Shopify App Store rating: 4.8 stars (124 reviews)
Best for: Stores that want simple charts by collection and tag.
BF Size Chart is a size chart app, formerly Best Fit Size Charts, that creates charts with custom text and image boxes for all your size variations. It builds smart charts based on collections and product tags, supports cm-to-inch conversion, and lets you place the link next to the size label on product pages.
BF starts at $5.99/month for up to 100 charts, with an Unlimited plan at $11.99/month that adds unit conversion. Its collection- and tag-based chart rules are its distinguishing feature, making it straightforward to apply the right chart across grouped products.
Key features
- Custom text and image boxes for size variations.
- Smart charts based on collections and product tags.
- Cm-to-inch unit conversion.
- Link placement next to the size label.
Pricing
5. Kiwi Size Chart & Recommender
Shopify App Store rating: 4.8 stars (1,038 reviews)
Best for: Stores that want size charts with AI fit recommenders.
Kiwi is a size chart app that combines customizable charts with AI-powered fit recommendations across product types, from apparel to accessories. It imports unlimited charts from images, product descriptions, or CSV, supports multiple tables, images, videos, and tabs, auto-applies collection-based guides to new products, and updates units by customer location.
Kiwi starts at $6.99/month for the Premium plan, scaling to custom recommenders and analytics on higher tiers, with additional charges based on order volume above Premium. Its breadth of import options paired with AI recommendations is its distinguishing feature for stores with large or varied catalogs.
Key features
- AI-powered size recommendations across product types.
- Import charts from images, product descriptions, or CSV.
- Multiple tables, images, videos, and tabs per chart.
- Auto unit detection by customer location.
Pricing
6. CSC: Size Chart & Size Guide
Shopify App Store rating: 4.8 stars (90 reviews)
Best for: Stores that want one-click AI chart generation.
CSC, also called Clean Size Charts, is a size chart app that builds charts from your product data with one-click AI generation and adds AI fit recommendations. It includes 18 templates for shirts, pants, dresses, shoes, and rings, auto-assigns charts by collection, vendor, or type, and offers a free done-for-you setup of your first charts.
CSC starts at $6.99/month with unlimited charts, scaling to 500 AI recommendations on Advanced and unlimited on Plus. Its one-click chart generation from product data is its distinguishing feature, cutting the manual work of building charts from scratch.
Key features
- One-click AI chart generation from product data.
- AI size recommendations to reduce returns.
- 18 templates for apparel, shoes, and rings.
- Auto-assign by collection, vendor, or type, with free setup.
Pricing
Which one should you pick?
The right app depends on what you're trying to do. Here's a quick way to decide:
- If you want size charts plus everything else your store needs to convert, choose Vitals. You get full size charts plus 40+ conversion apps (reviews, upsells, bundles, currency, and more) for $29.99/month, in one fast app with one support team. Most stores that add a size chart end up needing those other tools anyway, and buying them separately costs more.
- If you want setup handled for you, CSC includes a free done-for-you setup of your first charts.
Final thoughts
Every app on this list builds size charts well, and if a chart is the only thing you'll ever need, the specialists give you the most sizing-specific depth.
But if you want size charts plus 40+ other conversion apps under one subscription, Vitals is the best all-in-one Shopify app. You get image and table charts with targeting, styling, and analytics, plus reviews, upsells, bundles, and currency conversion for $29.99/month, in one fast app with one support team. Most stores that add a size chart end up needing those other tools anyway, and buying them separately costs more, adds more dashboards, and slows your store with multiple scripts.
If you want size charts today and room to grow tomorrow without rebuilding your app stack, try Vitals free.
FAQ
1. What is the best size chart app for Shopify in 2026?
Vitals is the best size chart app for Shopify in 2026 because it delivers full size charts (image and table-based, with targeting, styling, and analytics) plus 40+ other conversion apps under a single subscription for $29.99/month.
2. Do size charts actually reduce returns?
Yes. Size charts help shoppers pick the right size before they buy, which reduces the fit-related returns that drive most apparel return costs. Clear measurements and a "how to measure" guide remove the guesswork that leads to wrong-size orders.
3. What's the difference between a size chart and a fit recommender?
A size chart shows measurements in a table for the shopper to read. A fit recommender, offered by apps like MP, Kiwi, and CSC, asks a few questions and suggests a size directly. Some shoppers prefer the table; others want the recommendation.
4. Can I assign different size charts to different products?
Yes. Most apps on this list, including Vitals, assign charts by product, collection, tag, or vendor, so the right chart shows on the right products and auto-applies to new ones you add.
5. Should I use a standalone size chart app or an all-in-one app?
Use an all-in-one like Vitals if you also want reviews, upsells, and trust signals, because buying those separately costs more, adds more dashboards, and slows your store with multiple scripts.