MrFelicity

For the local hockey club a small plugin was required, which provides an overview of the attendance of players. The reason was on the irregular attendance. To avoid an empty training with just a few players this plugin was established. Players can easily sign in by just entering their name. Later the attendance can be changed, but never deleted. This plugin provides no checking on the entries on purpose. Everyone can load the page and mark people as not attending.
After a while the Plugin developed and became a tool with rich functionality.
See an example at <a href="http://wordpress.dasweb.net/" rel="nofollow ugc">wordpress.dasweb.net</a>

Ajax Easy Attendance List

bitsandarts

WP attend is an easy to use plugin for the creation and managing of activities. 
People can subsribe to receive attendance emails and can confirm or deny their attendance with one click. 
You can easily create, manage and delete activities via a calendar, and choose to send attendance emails to your subscribers. 
A clear overview of attendances is consultable per activity.
<h4>Features:</h4>
<ul>
<li>Shortcode for a calendar to add, edit and delete activities</li>
<li>Shortcode for a registration form to subsribe</li>
<li>One click attendance confirmation emails for subscribers</li>
<li>Overview of attendances per activity</li>
<li>Manage your subscribers</li>
<li>Add custom privacy policy for subscribers</li>
</ul>
<blockquote>
Documentation 
 Please visit the WP attend website for the <a href="https://wp-attend.com/documentation" rel="nofollow ugc">documentation</a>
</blockquote>

WP Attend

This plugin allows easy creation of events and registration of attendances via email.

Ajax Easy Attendance List vs WP Attend