followit

s-feeds

This plugin allows an “automatic” newsletter which means: You publish a post (as usual), and then we send out a notification to all your newsletter subscribers. That way they get to know about your new post, and come back to your website (increasing your traffic)!
It’s very easy to set up. Simply install the newsletter plugin and place a subscription form (and subscription icons) on your website.
Then people can subscribe to your newsletter and receive notifications by:
<ul>
<li>Email (either one email per day or a single email for every published post)</li>
<li>RSS</li>
<li>News site</li>
<li>Telegram</li>
<li>Coming soon: WhatsApp, Browser push notifications and other delivery channels!</li>
</ul>
For example, have a look at <a href="https://www.follow.it/techcrunch2?subParam=followPub" rel="nofollow ugc">this sample subscription page</a>. You can link to such a subscription page with a “follow” icon on your website.
As you can see there, your newsletter subscribers have many options to specify which updates they want to receive, and how. Providing your visitors with more newsletter options means more subscribers for you!
The plugin is powered by the newsletter service <a href="http://follow.it" rel="nofollow ugc">follow.it</a>.
The service can be used both in conjunction with, or as alternative to, mailing services like Mailchimp, Mailpoet, Aweber, Convertkit, Tinyletter, Sendinblue and many other email service providers.
To get access to your newsletter subscribers, please “claim” your feed. You can do that directly in the plugin (third step).
The newsletter service is FREE no matter how many subscribers you have (on the basic plan). Check out the (optional) <a href="http://follow.it/features-and-pricing" rel="nofollow ugc">Premium Features</a>.

Newsletter

What a cool plugin ;-) 
(Full disclosure: I'm the plugin creator)



Does what it's supposed to do

Hive 4 Apps

<h4>What is WP Group Subscription ?</h4>
WGS is a free and paid membership management solution designed from the outset to manage, in addition to traditional individual subscription, group membership registration into a single subscription.
<h4>Getting started</h4>
Once your plugin is installed and have configured it in settings, you still have a few steps to get started:
<ol>
<li>Edit a first plan in Dashbord > Plans > New Plan and save it.</li>
<li>Write inside a page or a post content the shortcode [wgs-plans][/wgs-plans] in order to display the plan on the front-end side.</li>
<li>Inside an other page or post, wrap a content that should be visible only for wgs members by the shortcode [wgs-restricted][/wgs-restricted].</li>
</ol>
Now, a user can access to the plan thanks to the page with [wgs-plans], click on the “Sign up” button, follow all registration steps and after to log in, see the content wrapped by [wgs-restricted].
<a href="https://wp-group-subscriptions.com/?page_id=411" rel="nofollow ugc">See DOCUMENTATION</a> 
<a href="https://wp-group-subscriptions.com" rel="nofollow ugc">See about Premium features</a>
<h3>Features</h3>
<ul>
<li>
Admin
<ul>
<li>Plans management</li>
<li>Members management</li>
<li>Subscribers management</li>
<li>Paypal payments management</li>
</ul>
</li>
<li>
Settings
<ul>
<li>Currency</li>
<li>Paypal</li>
<li>Page Profile</li>
</ul>
</li>
<li>
Front-end
<ul>
<li>Quick display of plans on a page thanks the shortcode [wgs-plans][/wgs-plans]</li>
<li>Automatic redirection on the right form (Single or Group Subscription)</li>
<li>Paypal payment</li>
<li>Login page</li>
<li>Profile page</li>
</ul>
</li>
<li>
Security for forms
<ul>
<li>Warning to advise administrator about enabling HTTPS for WS Form Pages</li>
<li>Native client-side validation for inputs : patterns and lengths checking</li>
<li>Server-side validation for inputs : patterns and lengths checking</li>
<li>Repeat password</li>
<li>Repeat email</li>
<li>password hashing</li>
</ul>
</li>
</ul>

WP Group Subscriptions

Accepts paying group registrations. Gives access to restricted content for members or groups of members.

Newsletter vs WP Group Subscriptions