Newsletter has a set of add-ons to integrate other plugins in many different ways. Contact form designers can be integrated to collect subscriptions, e-commerce plugins are integrated to send newsletters to specific customers, and so on.
An integration usually requires the presence of a third-party plugin, updated to enough recent version anyway add-ons try to verify the version compatibility at startup showing an administrative notice if required.
WooCommerce
Subscription on checkout and registration, segmentation by purchase, composer block for products
Easy Digital Download
Subscription on checkout, segmentation by purchase, composer block for downloads
Optimization
Integration add-ons could require server resources hence it is recommended to not install and activated the unnecessary ones. For example, if you’re not running WooCommerce there are no reasons to install our integration.
If you just want to have a copy of the package, download it from your account page and keep the zip package on your PC.