Woocommerce Mailchimp Discount helps you to easily make your MailChimp list healthy by providing a one time discount when someone subscribes to your mailchimp list. This plugin automatically adds a MailChimp subscription popup to your website which can be used to capture the Emails and when the user successfully subscribed to your list then he gets a coupon code.
Demo: https://codecanyon.net/item/woocommerce-mailchimp-discount/10229569