Subscribe to Download - Download after Email Subscription WordPress Plugin makes it fast and easy to capture subscribers right from your WordPress site by simply providing them a freebies to download through email after successful subscription.

Demo: https://codecanyon.net/item/subscribe-to-download-an-advanced-subscription-plugin-for-wordpress/24020447

Coupons + is an awesome WooCommerce extension that extends the default WooCommerce coupon functions to allow you to create very complex offers & deals like Buy One, Get One (BOGO) deals, discounts on new customers.

Demo: https://codecanyon.net/item/coupons-advanced-woocommerce-coupons-plugin/36862307