Yannick Lefebvre

<p>The purpose of this plugin is to allow users to create one or more modal dialog(s) / pop-up window(s) that will appear when a user visits their site. The number of times that these can load is configurable. They can load content from external sites or custom HTML code into the dialog. This plugin can be used to invite people to register to a newsletter, respond to a survey, or simply welcome come to a site upon their first visit.</p>
<p>You can try it out in a temporary copy of WordPress <a href="https://demo.tastewp.com/modal-dialog" rel="nofollow ugc">here</a>.</p>


Modal Dialog

The others either didn't work or caused massive JavaScript problems, breaking other plugins.

This plugin worked the best.

Worked better than the others

The purpose of this plugin is to allow users to create one or more modal dialog(s) / pop-up window(s) that will appear when a user visits their site.

milat

<h4>Choose Where Your Popup Is Displayed</h4>
<p>Only want your popup in some areas on your site? You can select whether you want them displayed on your posts, pages, or your home page.</p>
<h4>Preview</h4>
<span class="embed-youtube" style="text-align:center; display: block;"><iframe loading="lazy" class="youtube-player" width="750" height="422" src="https://www.youtube.com/embed/3ogC1F4P7MA?version=3&rel=1&showsearch=0&showinfo=1&iv_load_policy=1&fs=1&hl=en-US&autohide=2&hd=1&wmode=transparent" allowfullscreen="true" style="border:0;" sandbox="allow-scripts allow-same-origin allow-popups allow-presentation allow-popups-to-escape-sandbox"></iframe></span>
<h4>Visual Text Editor</h4>
<p>Now, no more clunky HTML code to deal with on your popup. Using the WordPress built-in WYSIWYG editor, you can now just worry about what you want to say, and not how to display it.</p>
<h4>Stop Bugging Return Visitors</h4>
<p>Don’t want your return visitors to see this box every time they go back? Don’t want your popup to show on every post people read? Now you can set how often a person sees your popup.</p>
<p>work right every time.</p>
<p>http://www.milat.org/</p>


Milat jQuery Automatic Popup

Creates unblockable, dynamic and fully configurable popup for your blog.

Modal Dialog vs Milat jQuery Automatic Popup