pajko

This plugin will enable you to add any kind of slide in/out popups to your WordPress website. 
New widget, called “SlideIn Box”, is added. Each of these widgets can hold one slidein box content, whitch can be any HTML or PHP code. Inside these widgets you will have complete control over your slidein box layout. 
New widgets sidebar, called “SlideIn Boxes”, is added, where you should place all defined “SlideIn Box” widgets. After that, they will be selectable from the dropdown menu on Global SlideIn Options page, and inside page/post meta boxes.
<ul>
<li>You can control the position for each SlideIn box. </li>
<li>You can control when will these SlideIn boxes display to your visitors.</li>
<li>You can specify delay for each SlideIn box.</li>
<li>With little HTML/CSS knowleadge you can have your own styles for toggle and close buttons. </li>
<li>Page/post settings will override global settings for SlideIn boxes.</li>
</ul>

Slide In Popup

Define the bottom edge slide-in box with any HTML/PHP globally or for each WP page/post.

popups

Inisev

Try it out on your free dummy site: Click here => <a href="https://demo.tastewp.com/mpu" rel="nofollow ugc">https://tastewp.com/plugins/pop-up-pop-up</a>. 
(this trick works for all plugins in the WP repo – just replace “wordpress” with “tastewp” in the URL)
Create stunning pop-ups in a breeze!
This plugin allows you (in combination with MyPopUps.com) to place cool-looking pop-ups on your site for various purposes:
<ul>
<li>Collect emails</li>
<li>Show discount codes</li>
<li>Get social likes & shares</li>
<li>Show cookie notices</li>
<li>Block ad-blockers</li>
</ul>
You can design the pop-ups to your liking thanks to the powerful builder on MyPopUps.
You can activate & disable the pop-ups directly inside this plugin (without having to leave your WP dashboard)!
Coming soon: define much more granular rules when & how the pop-ups should show (using WordPress parameters, inside this plugin).
Give it a shot! If you find any ways how to improve it, please let us know in the support forum, we’ll always try to respond quickly 🙂
Note: This plugin relies on the 3rd party service MyPopUps, which can be reached at https://mypopups.com. The pop-ups are created on MyPopUps and displayed on your website with the help of this plugin. Only when you click on the “Yes” button in the plugin a connection is established to MyPopUps (this is also mentioned on that button). For the confidential handling of your data, please have a look at MyPopUps’ GDPR-compliant privacy policy at https://mypopups.com/privacy as well at the terms of use at https://mypopups.com/terms. If you have any questions about those, please don’t hesitate to contact us here https://mypopups.com/contact-us. Thank you!

Pop-up


To use this plugin you must first make a popup (register?) at their website. So that's a no no. Another company trying to horde in on your server.


Slide In Popup vs Pop-up