If you are a WooCommerce store using Springbot and would like to collect subscribers during the checkout process, update your Springbot plugin to WooCommerce Version: 1.0.0. Install Here.
By default, when the Springbot plugin is enabled and connected, a checkbox will appear at the bottom of the checkout page. If checked, when the customer submits their purchase, they will become a subscriber in Springbot.
This feature is enabled by default. If you do not want this option during your checkout process, you can navigate to WooCommerce → Settings → Springbot tab to toggle the feature on and off: