[2026 Edition] Shopify Size Guide App Comparison: 5 Recommended

In 2026, an accurate size guide is crucial for running a Shopify store, allowing customers to confidently select products. Especially when dealing with apparel or other products with complex dimensions, size-related questions and concerns are a major cause of cart abandonment. Implementing an easy-to-use size guide app is essential to improve user convenience and reduce return rates. In this article, we carefully select and rank the top five best size guide apps. We’ll help you choose the best app and support you in running your store with confidence.

1st place

GA Size Chart & Size Guides

App URL: Shopify View in the App Store

App Overview

This app is a tool that allows you to easily insert beautiful size charts into your product pages. Its highly customizable design allows you to tailor it to your brand image. Its intuitive operation eliminates customer concerns when purchasing apparel. Multiple templates are available for easy implementation.

App Details

You can freely customize the size chart display format to accommodate various product types. You can automatically display size charts based on product category or enable tab-based switching. The mobile-friendly design provides a comfortable shopping experience for smartphone shoppers. It is expected to contribute to reducing return rates, so please consider it.

2nd Place

Kiwi Sizing

App URL: Shopify View in App Store

App Overview

This app features size recommendations powered by AI. Customers enter information such as their height and weight to automatically suggest the optimal size. This reduces the chance of incorrect size selection and further encourages customers to make a purchase. It is also compatible with global expansion and supports size display in multiple languages.

App Details

Equipped with a unique size recommendation engine, it accurately recommends sizes based on past purchase data and statistical information. In addition to size charts, it also has the ability to add detailed fit descriptions, allowing you to provide accurate information even for specialized products. Installation is easy and can be quickly integrated into your store, making it safe for even those without technical knowledge.

3rd Place

Tiny Tabs

App URL: Shopify View in App Store

App Overview

This versatile app lets you display custom content, including size guides, in a tabbed format on product pages. It tidies up pages that can often be overloaded, providing quick access to the information you need. In addition to size guides, it’s also useful for adding shipping information, FAQs, and more, making it a versatile app.

App Details

The app features a simple yet powerful editor, allowing you to create rich content without HTML knowledge. You can precisely control the appearance and placement of tabs, ensuring your store’s design remains consistent. It also features a bulk management feature that allows you to apply the same tabs to multiple products, enhancing operational efficiency. This allows you to continue providing information efficiently even as your product lineup expands.

4th Place

AI Size Chart App

App URL: Shopify View in App Store

App Overview

This size chart generation and display app specializes in artificial intelligence (AI). Using complex calculations and proprietary algorithms, it provides personalized fit recommendations. It offers an effective solution, especially for customers with niche body types that cannot be accommodated by standard sizes.

App Details

In addition to customer input, we use machine learning to understand product characteristics and continuously improve the accuracy of size recommendations. This intelligent approach significantly reduces the time and effort required for manual sizing. It also offers a wealth of advanced features for advanced shoppers who want to improve their shopping experience, allowing you to provide a more personalized service.

5th Place

Sitemap Page

App URL: Shopify View in the App Store

App Overview

This app is primarily designed for creating sitemaps, but you can also create a simple size guide page using the custom page creation feature. It can be used for SEO purposes and information provision, but it does not offer specialized size recommendations. It’s suitable for simple stores that don’t require a feature-rich app.

App Details

The main function is automatic sitemap generation and search engine submission assistance, but you can also publish any HTML content as a page using the flexible content editor. While it is suitable for displaying static content such as a size chart, it is not suitable for applications requiring AI recommendations or complex logic. Please note that it is only designed for displaying simple information.