Can the app performance be audited?

You can check how the app performs in your store using the built-in stats module.

However, if you need to exactly audit or track all products purchased with the help of our app, you can enable the 'Conversion tracking' option under the 'Tracking preferences' section:

With that option enabled, all products added to the shopping cart using the 'Add to Cart' button in that app and then purchased include the Shopify cart attribute '__Added with Also Bought button'.

This attribute can be used for app auditing and will appear in your Shopify order details page so you can know exactly which purchased products were added by the app:

The double underscore prefix is a Shopify convention that tells your Shopify theme and other third-party apps that it should not be displayed to your customers.