> For the complete documentation index, see [llms.txt](https://help.fluorescent.co/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://help.fluorescent.co/ira/product-pages/product-page-blocks/app-blocks.md).

# App blocks

{% hint style="danger" %} <mark style="color:red;">Theme retirement</mark> Ira is no longer available on the Shopify theme store. **Theme support and updates for current users will end after May 18, 2024**. [Learn more here](/ira/readme/theme-retirement.md).
{% endhint %}

With App blocks, you can add, customize, and rearrange apps just like feature sections in the theme editor without custom edits to the theme.

Please note that our [Support policy](https://fluorescent.co/help/contact) does not cover app integration or problems arising from apps. See Shopify's listing of [OS2 apps](https://apps.shopify.com/collections/online-store-2) or contact the developer of your app to ask about compatability with OS2 and our themes.

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> **Related links**
>
> [Product template](/ira/product-pages/product-template.md)