Not Working on Mobile

the plugin does work on mobile (touchscreen) devices.
perhaps there is something going on with your page that is preventing normal behaviour.
sadly, you did not include a link to your page, so we have no way of knowing.

I can’t share the page link because the information on it is not to be seen by the public yet. I figured it out.

I have Style: None in the settings. In my site’s child theme I have changed the CSS to this:

.collapseomatic {
	color:#02baff; /* Blue */
	font-family: 'Raleway', sans-serif;
	font-weight:300!important;
	font-size:26px!important;
	line-height:1.2em!important;
	padding-top:20px;
	padding-bottom:20px;
	border-top:1px solid #0064a6; /* Dark Blue */
	background-image:url(images/Sign_Plus.png);
	background-repeat:no-repeat;
	background-position:right center;
        cursor:pointer;
}
.colomat-close {
	background-image:url(images/Sign_Minus.png);
	background-repeat:no-repeat;
	background-position:right center;
}

I just added “cursor:pointer;” to my CSS and now the mobile works.

great! glad you got it figured out and thank you for sharing your solution.
Issue tagged and marked as resolved.