Some apps in Crucials have feature to collect visitor emails for marketing purpose:
Popup
Back in Stock
Spin the Wheel
In this article, you will learn how to find the subscriber emails from the apps.
By default, Crucials is integrated with BigCommerce email marketing.
You can click on the button View subscribers to view the subscribers in BigCommerce Admin.
You can also go directly to BigCommerce Admin > Marketing > Email marketing > Subscribers and download the list there:
If you want to integrate Crucials with 3rd party email marketing services, check the relevant articles below: