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.

vaakash

With Announcer plugin you can add beautiful and professional looking notification bars (also called message banners/sticky bars) to your website. You can display custom message you want like promotions, cookie usage notes, welcome notes, privacy policy note etc. You can use this to increase user engagement in your website or boost sales and services.
You can add Call-To-Action buttons easily to the announcement bar and assign roles to them like opening a link or closing the announcement itself.
View <a href="https://wpdemos.aakashweb.com/announcer/?utm_source=readme&utm_medium=description&utm_campaign=ancr-pro" rel="nofollow ugc">Live demo</a> of the plugin.
<h3>⭐ Features</h3>
Announcer plugin is feature rich and powerful enough which you cannot find in any other plugin.
<ul>
<li>Create multiple announcements.</li>
<li>Add messages to both top and bottom of your website.</li>
<li>Supports stacking if there are more than one announcements in one page.</li>
<li>Schedule announcements for a date-time range including timezone.</li>
<li>Supports both fixed and sticky bars.</li>
<li>Call-To-Action buttons.</li>
<li>Horizontal ticker text scroll feature.</li>
<li>Re-display messages or hide permanently using cookies.</li>
<li>Insert any content into announcement message like forms, images, shortcodes.</li>
<li>Can use shortcodes in messages.</li>
<li>Create rules and Conditionally display announcements based on page.</li>
<li>Responsive first design and works well on smaller/mobile screens.</li>
<li>Multiple layout options, colors to choose and customize the announcements.</li>
<li>Automatic display based on time/page scroll.</li>
<li>Open/close animations.</li>
<li>Simple and easy to use.</li>
<li>No coding knowledge required.</li>
<li>Target announcements based on WPML translated post language.</li>
<li>Clean and lightweight plugin.</li>
<li>GDPR complaint.</li>
</ul>
<h3>🚛 Use cases & ideas</h3>
You can use Announcer plugin to display announcement or message banner on your website for things like,
<ul>
<li>Promotional messages like coupons, during seasonal sales.</li>
<li>Cookie consent message.</li>
<li>Welcome message.</li>
<li>Privacy policy notes.</li>
<li>Terms and conditions changes.</li>
<li>Site wide notices and important announcement messages.</li>
<li>News.</li>
<li>Forms like “email newsletter” using shortcodes of subscription plugins, wpforms, mailchimp etc.</li>
<li>Launch of new products.</li>
<li>New blog post.</li>
<li>Feedback messages.</li>
<li>Sharing icons, links.</li>
<li>Offers on products.</li>
<li>Messages like COVID-19 updates to visitors.</li>
</ul>
<h3>💎 PRO version</h3>
There is a PRO version available and it includes below features to further enhance and spice up your announcements even better.
<ul>
<li>
<a href="https://www.aakashweb.com/wordpress-plugins/announcer/?utm_source=readme&utm_medium=description&utm_campaign=ancr-pro#pro" rel="nofollow ugc">Multiple messages with ticker/slider</a> – You can display multiple messages in one announcement bar. Add a “ticker” (otherwise) “slider” animation and auto-play all the messages with next/prev buttons.
</li>
<li>
<a href="https://www.aakashweb.com/wordpress-plugins/announcer/?utm_source=readme&utm_medium=description&utm_campaign=ancr-pro#pro" rel="nofollow ugc">Countdown timer</a> – Display a countdown timer next to your announcements to notify any deadline or to increase engagement. You can customize the countdown timer as you want.
</li>
<li>
<a href="https://www.aakashweb.com/wordpress-plugins/announcer/?utm_source=readme&utm_medium=description&utm_campaign=ancr-pro#pro" rel="nofollow ugc">Animation</a> – Want to grab the attention of your announcements ? You can add animation to your CTA buttons and funky transitions to the bar when they open/close
</li>
<li>
<a href="https://www.aakashweb.com/wordpress-plugins/announcer/?utm_source=readme&utm_medium=description&utm_campaign=ancr-pro#pro" rel="nofollow ugc">Visitor conditions</a> – With this feature you can target visitors based on conditions like referrer, browser, OS, device type, user login status, user role, number of times user has visited the site, number of times user has logged in and more !
</li>
<li>
<a href="https://www.aakashweb.com/wordpress-plugins/announcer/?utm_source=readme&utm_medium=description&utm_campaign=ancr-pro#pro" rel="nofollow ugc">Shortcode</a> – You can insert the announcement anywhere on your website using Shortcode like post/pages or even in theme templates directly
</li>
<li>
<a href="https://www.aakashweb.com/wordpress-plugins/announcer/?utm_source=readme&utm_medium=description&utm_campaign=ancr-pro#pro" rel="nofollow ugc">Duplicate Announcement</a> – Duplicate announcements easily at the click of a button.
</li>
</ul>
<a href="https://www.aakashweb.com/wordpress-plugins/announcer/?utm_source=readme&utm_medium=description&utm_campaign=ancr-pro#pro" rel="nofollow ugc">Get the PRO version</a> – <a href="https://wpdemos.aakashweb.com/announcer/?utm_source=readme&utm_medium=description&utm_campaign=ancr-pro" rel="nofollow ugc">View demo</a>
<h3>👋 Feedback</h3>
If you have any issues or have any idea to share please post them in the <a href="https://www.aakashweb.com/forum/discuss/wordpress-plugins/announcer/" rel="nofollow ugc">support forum</a>.

Announcer – Sticky Message Banner, Notification Bar – Add to Top, Bottom of your Website

I tried a few other banner plugins but none of them did what I needed: multiple banners displaying conditionally on specific pages.  Announcer got the job done - thank you!  A+

Worked as advertised!

After searching through quite a few announcement bar plugins, I found that this is the best one. The conditional display settings are awesome. 

Well built admin interface and front end works perfectly.

Add notification bar to your site and display any message like welcome message, promotions, coupons, news banner to the top/bottom of the page.

Slide In Popup vs Announcer – Sticky Message Banner, Notification Bar – Add to Top, Bottom of your Website