Using an App Block for the Kiwi Sizing app in your Shopify store is ideal in the following situations:
1. Online Store 2.0 Theme Compatibility
App Blocks are a perfect fit if your store uses an Online Store 2.0 theme. They allow you to easily integrate the Kiwi Sizing chart wherever you want on the product page, like near the "Add to Cart" button, without editing any theme code.
2. No Coding Knowledge
If you’re not comfortable with coding or don’t have a developer to help with customizations, App Blocks allows you to manage everything from the Shopify admin, making it much easier to use.
3. Dynamic Content
If you want the sizing chart to only show a specific product template, App Blocks can help you achieve this, ensuring the chart only appears where relevant.
When Not to Use App Blocks:
If your store is using an older theme that doesn't support Online Store 2.0 features, or if you need very specific customizations that are easier to implement with App Snippets, you might opt to use a snippet instead.