Pavel

The plugin
Using this plugin you can create feedback form. Paste shortcode into article or page and create feedback form. Form has simple capcha for protect your email. Also, form has some options for configuration your mail in cpanel.
Используя данный плагин, вы сможете создать форму обратной связи на любой странице вашего сайта. Вставив соответствующий шорткод в текст страницы или статьи. А через панель администратора, можно настроить почтовый адрес для отправки сообщения, шаблон самого сообщения и прочие параметры.

My Simple Feedback

Yehi

Wiliba

Advanced Notifications allows you to create beautiful custom notifications that appear on pages or posts of your choice.
Demos – <a href="https://advanced-notifications.com/demos/" rel="nofollow ugc">Advanced Notifications – Live Preview</a>
<h4>In development:</h4>
<ul>
<li>More designs</li>
<li>More animations</li>
</ul>
<h4>Features:</h4>
Here’s a list of the Basic version features in plain text format:
Notifications
<ul>
<li>Number of Notifications: Unlimited</li>
<li>Types: Editor, Image, HTML</li>
<li>Notification by User Role Types: Always all users & visitors, All users & visitors</li>
<li>Scheduled Notification: No</li>
<li>Notification by Devices Types: All devices, Desktop, Desktop & Tablet, Tablet, Only Tablet & Mobile, Mobile</li>
<li>Delay Before Show: Yes</li>
<li>Show Time: Yes</li>
<li>Publish Type: All site pages, Custom post types & taxonomies, Only on specific pages</li>
<li>Limiting the Number of Shows per Period: Yes</li>
<li>Animations In & Out: Basic</li>
<li>APIs for Developers: Yes</li>
</ul>
Locations
<ul>
<li>Number of Locations: Unlimited</li>
<li>Locations: Bottom & Left, Bottom & Right, Top & Left, Top & Right</li>
<li>Custom Location Options: Basic</li>
<li>Responsive: Yes</li>
</ul>
Designs
<ul>
<li>Number of Designs: Unlimited</li>
<li>Designs: Default, Success, Info, Warning</li>
<li>Custom Design Options: Basic</li>
<li>Responsive: Yes</li>
</ul>
Triggers
<ul>
<li>Number of Triggers: Unlimited</li>
<li>Number of Triggers per Notification: Only one</li>
<li>Notifications Mode: Page is loaded and in triggers</li>
<li>Triggers: Mouse leave from top, On click, On hover</li>
<li>Trigger Action: Only show notification</li>
</ul>
Full Features – <a href="https://advanced-notifications.com/features/" rel="nofollow ugc">Advanced Notifications – Features</a>
<h4>Feedback</h4>
If you like this plugin, then please leave us a good rating and review. 
<a href="https://wordpress.org/support/plugin/advanced-notifications/reviews/" rel="ugc">Advanced Notifications – Reviews</a>

Advanced Notifications

Advanced Notifications allows you to create beautiful custom notifications that appear on pages or posts of your choice.

My Simple Feedback vs Advanced Notifications