Product assignment rules
Assign guides by product, collection, vendor, type, or tags depending on your catalog setup.
Shopify app by Lemon.dev
Size guides that help shoppers choose the right fit.
Lemon Size lets Shopify merchants create, assign, and display clean size charts directly on product pages — so customers buy with more confidence and fewer doubts.
Free app
Theme app block
Product assignment rules
Lemon Size
Size charts
Oversized T-Shirts
Assigned to: Product type / T-Shirts
| Size | Chest | Length |
|---|---|---|
| S | 52 cm | 70 cm |
| M | 55 cm | 72 cm |
| L | 58 cm | 74 cm |
CSV
Import tables fast
Rules
Assign by product data
Free
Start without extra cost
2.0
Shopify theme-friendly
CSV
Import size charts
Rules
Assign charts smarter
Why Lemon Size
Wrong size = lost trust, returns, and support tickets.
Fashion, footwear, kidswear, sportswear, and supplier-driven catalogs need size guidance that is clear, fast to manage, and easy to show on the right products. Lemon Size gives you a focused admin workflow without overcomplicating the storefront.
1
Create size charts
Build manual tables for each product category, collection, vendor, or item type.
2
Import via CSV
Move faster when you have supplier-provided measurements or existing spreadsheet data.
3
Show on product pages
Display clean size guides where the customer needs them before adding to cart.
Features
Simple for merchants. Clear for shoppers.
Manual + CSV workflow
Create charts directly in the app or import data when working with larger catalogs.
Product page size guide
Add an elegant guide experience to product pages without making the page feel heavy.
Measurement guidance
Support customers with context like how to measure, tips, and helpful disclaimers.
Built for Shopify stores
Designed around real Shopify product page workflows and theme integration needs.
Lemon Size
Created by a Lemon Dev Shopify-focused team that works with product catalogs, storefront UX, and merchant operations daily.
How it works
From empty size data to live guide in minutes.
01
Create or import a chart
Add rows, columns, units, and measurement values.
02
Assign where it should appear
Match charts to the right products using simple rules.
03
Publish on your storefront
Customers see the guide on the product page before choosing a size.
Storefront preview
Product pageLemon Apparel
Oversized Tee
€39.00
Find the right fit using chest, length, and sleeve measurements.
Pricing
Start with Lemon Size for free.
Install the app, add your first size chart, and give shoppers a clearer buying experience directly on your Shopify product pages.
Current plan
Free
- ✓ Size chart management
- ✓ Product page display
- ✓ Assignment rules
- ✓ CSV/manual workflows
FAQ
Common questions
What is Lemon Size? +
Lemon Size is a Shopify app for creating and displaying size charts and size guides on product pages.
Can I assign different charts to different products? +
Yes. The page should explain that merchants can assign size charts using product-related rules such as products, collections, product type, vendor, or tags.
Is it good for fashion stores? +
Yes. It is especially useful for apparel, footwear, kidswear, accessories, and any Shopify catalog where sizing clarity matters.
Who built it? +
Lemon Size is built by Lemon.dev, a Shopify-focused team working on storefront UX, catalog operations, automation, and conversion-focused Shopify builds.
Give every product the size guide it deserves.
Install Lemon Size and help shoppers make faster, more confident size decisions.