Jacques Malgrange

This plugin adds a simple widget that allows you to display an email form and a submit button.
<ul>
<li>You have the options to choose to recommend the site or the current page.</li>
<li>The mail subject and content can be changed.</li>
<li>You can limit the number of recommendation sended by user a day.</li>
</ul>
The widget is only displayed if the user is connected.

Recommend by mail widget

Recommend the site or the current page to a friend by mail.

socialtech

Social Share Pro

Add social share icons on your website with just a few clicks.
Try it out on your free dummy site: Click here => <a href="https://tastewp.com/plugins/ultimate-social-media-plus" rel="nofollow ugc">https://tastewp.com/plugins/ultimate-social-media-plus</a> 
(this trick works for all plugins – just replace “wordpress” with “tastewp” in the plugin’s WP repo URL)
The plugin can be customized to suit any need and is FREE. It also has been translated into various languages.
Feature list:
<ul>
<li>Numerous social share platforms (see a list of them below)</li>
<li>Many placement options before or after posts, floating over your website’s pages, via widget, via shortcode, (top right, bottom left etc.)</li>
<li>The possibility to give several actions to one social share button (e.g. your Facebook icon can lead visitors to your Facebook page, and also show a Facebook button to share your page on social media)</li>
<li>16 design styles for your social share buttons</li>
<li>Animated social share buttons (e.g. automatic shuffling, mouse-over effects)</li>
<li>Social pop-up – ask people to follow or share you</li>
<li>Subscription service – allow visitors to subscribe to your site and receive new posts automatically by email</li>
<li>Share counts</li>
<li>Rearrange Order of social share icons</li>
<li>Lots of other customization options for your social share buttons</li>
<li>Compatible with Gutenberg editor</li>
</ul>
List of platforms supported in the free plugin:
<ul>
<li>Facebook share icon</li>
<li>Twitter share icon</li>
<li>Email icon</li>
<li>RSS icon</li>
<li>Instagram share icon</li>
<li>Youtube share icon</li>
<li>Pinterest share icon</li>
<li>LinkedIn share icon</li>
<li>Houzz share icon</li>
<li>OK icon</li>
<li>Telegram icon</li>
<li>VK icon</li>
<li>WeChat icon</li>
<li>Weibo icon</li>
<li>Share icon (allows your visitors to share your site on over 200+ other social media sites; powered by addthis/sharethis)</li>
</ul>
If there are any important social share networks not covered yet, please let us know!
For GDPR compliance, please have a look at our <a href="https://ultimatelysocial.com/gdpr/" rel="nofollow ugc">Social Media GDPR Compliance page</a>.
In case of issues or questions please ask in the [Support forum] (https://wordpress.org/support/plugin/ultimate-social-media-plus).
<h4>Premium Plugin</h4>
The free plugin already provides tons of options for social sharing (as outlined above). In our Premium Plugin, even more is possible. Some examples for additional features in the Premium Plugin:
<ul>
<li>More social share buttons (the icon pack includes an Instagram button, Snapchat button, Yummly button, Print button, Whatsapp button, Yelp button, Soundcloud button, Skype button, Flickr button, Share button, Blogger button, Digg button, Reddit button, Vimeo button, Tumblr button, Xing button, vk button, Telegram button, Amazon button, Spotify button and many more badge, see list above)</li>
<li>More (default) design styles for your social share icons</li>
<li>Themed design styles for your social share buttons (e.g. if you have a site about cats, you can pick from cat-themed buttons etc.)</li>
<li>Better sharing & following features (tailored tweet texts, allow people to follow you directly on your page etc.)</li>
<li>Place the social share icons on specific pages</li>
<li>Optimized for mobile sharing and buton display</li>
<li>More functions for email icon to connect with you</li>
<li>More lightbox / popup options (e.g. limit how often the popup is shown to the same user)</li>
<li>(Friendly and fast) Support</li>
<li>Many more settings & options</li>
</ul>
Note: this plugin uses the third party provider SpecificFeeds.com for the subscription feature, enabling you to allow your visitors to subscribe to your site and get new posts automatically by email. Upon installation of the plugin a feed will be set up on SpecificFeeds, transmitting your IP address. This is required for this feature to work.

Social Share Icons & Social Share Buttons

We have to buy Pro to choose where should I want to show the share button. At least enable the option of page / post for the free users. It's a great one. But I don't want to show the share button all over the site. At least not on the homepage come on. Sorry for my bad rating. But it seems you are forcing to buy the pro for the basic option which is available on every possible social share plugin.

Missing the basic thing on Free Version :(

Social sharing plugin adding social buttons.

Recommend by mail widget vs Social Share Icons & Social Share Buttons