Kiwi is one of the best free size chart apps available in 2025, offering a comprehensive solution for reducing returns and improving customer experience. The free plan includes 2 published size charts, dynamic size charts, full style customization, and automatic unit conversion. Merchants praise its ability to decrease size-related returns while providing accurate sizing recommendations that boost customer satisfaction and sales.
Several alternatives exist for Kiwi Size Chart including BF Size Chart & Size Guide (4.9/5 stars, 135 reviews) which offers customizable size charts and guides. MP Size Chart & Size Guide (4.9/5 stars, 748 reviews) provides size recommender features to improve fit accuracy. Smart Size Chart & Size Guide (5.0/5 stars, 102 reviews) offers customizable size charts and guides with free plans available. Each alternative provides similar core functionality for managing size information and reducing returns.
Creating your first size chart with Kiwi is straightforward. First, sign up for your free account at kiwisizing.com/admin/signUp. Next, choose a size chart template from the available options and edit the details to match your products. Finally, set up product matching conditions to determine which products will use this size chart, then publish it to your store. The entire process typically takes less than 5 minutes.
To customize where your size chart appears on product pages, use the Kiwi Theme Helper and Sizing Injection Selector. Navigate to your Kiwi dashboard and access the Theme Helper settings. From there, you can use the Sizing Injection Selector to precisely position your size chart - whether it's in product descriptions, below add-to-cart buttons, or in other strategic locations. The support team can also provide custom coding assistance if needed.
Enabling the Kiwi Theme Helper is crucial for proper app functionality as it ensures seamless integration with your Shopify theme. The Theme Helper acts as a bridge between Kiwi's features and your store's frontend, allowing size charts and recommenders to display correctly across all devices. Without it, you may experience display issues, mobile responsiveness problems, or features not appearing where expected on your product pages.
