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

notifyvisitors

https://www.NotifyVisitors.com 
Want to grow leads? Want more Traffic over Website? Enroll with NotifyVisitors. Try high converting lead generation forms to collect contacts, sales leads & more.
Features
<ul>
<li>Modal Pop-upA subscription form in modal pop up with a dark background. High conversion rate when used with NotifyVisitors exit intent technology</li>
<li>Slider Pop-upShow slider subscription form when a user scrolls through your page. High conversion rate when a pop up has shown to the user after a user scrolls your website</li>
<li>Top barA floating top and bottom bars to show subscription form on a website all the time without disturbing users</li>
<li>Exit Intent TechnologyShow subscription form when user intent to leave your website. Get high conversion rate with exit intent targeting rules. Modal popup subscription form works great with exit-intent</li>
<li>Scroll PercentageShow subscription form when a user starts scrolling your webpage. Show pop up instantly when users scroll certain percentage of page height</li>
<li>Time Based TargetingShow subscription form based on time like time delay on a webpage, time of day, More targeting rules use page URLs, geolocation, referrer source, cookies and custom rules to show subscription form</li>
<li>Technology-Based TargetingShow subscription form based on time like Device (Desktop, mobile, tablet), Browser (Google Chrome, Mozilla Firefox, Safari), Operating System (Windows, Linux, Apple IOS)</li>
</ul>
Free Plan And Paid Plans
<ul>
<li>We offer NotifyVisitors as a free plan. You can use the free plan as long as you want without paying.</li>
<li>We also offer different pricing plans with assortment of features and capabilities. For further details please visit : https://www.notifyvisitors.com/site/price</li>
<li>We offer 14 days free trial period on all the paid plans.</li>
</ul>

Free WordPress Lead Generation Opt in, Free Popups, Generated Lead Email Popup, Exit-Intent Popup – NotifyVisitors

Cross Device Customer Engagement software. Show Surveys, Feedback Forms , Lead Capture forms, lightbox style notifications.

Newsletter vs Free WordPress Lead Generation Opt in, Free Popups, Generated Lead Email Popup, Exit-Intent Popup – NotifyVisitors