sajidhussain

Instead of asking for both an email and a username on registration, this plugin lets you ask for email only, and uses that as username as well. Since the password is automatically generated and emailed to the user, this allows for sign-up form with a single form field: email.
For users that registered with different username and email address before this plugin was installed, their username and email address will be interchangeable on login.
The plugin offers a shortcode, [NP-registration], to add the registration form to a post or page.
Note: This plugin has not been tested with WP versions older than to 3.1.5. It should work with some older versions, but we can not guarantee it. However, if you are running an older version of WordPress, there are some very compelling arguments why you should consider upgrading. If you need help, there is plenty of free help to be found on WordPress.org, and Next Page, the authors of this plugin, offer a paid WordPress maintenance service.

Login Tweaks by Next Page

Use email as username to allow for single-field signup. Adds shortcode for adding registration form to post.

Fetch Designs

This plugin lets you quickly and easily set up sign-up sheets on your WordPress site. Use it for volunteer and time slot sign-ups, personnel and resource coordination, and much more.
The free version of Sign-Up Sheets includes the following features:
<ul>
<li>Administrator can add, edit and clear sign-up spots as needed – add/edit is NEW as of version 2.2.9</li>
<li>Copy a sheet or a task to a new one</li>
<li>Confirmation emails on sign-up</li>
<li>Allow logged-in users to see all the tasks they’ve signed up for on one page using the <a href="https://www.fetchdesigns.com/doc/user_sign_ups-shortcode/" rel="nofollow ugc"><code>[user_sign_ups]</code> shortcode</a>.</li>
<li>No limit on the number of sign-up sheets and sign-up spots</li>
<li>reCAPTCHA (optional) – NEW as of version 2.2</li>
<li>Export sign-up information for a single sheet or all sheets to a CSV</li>
<li>Supports WordPress <a href="//www.fetchdesigns.com/doc/gdpr-sign-up-sheets-wordpress-plugin/)" rel="nofollow ugc">GDPR privacy features for your sign-up sheets</a></li>
<li>Developed with accessibility in mind based on <a href="https://www.w3.org/WAI/standards-guidelines/" rel="nofollow ugc">WCAG Guidelines</a>. If you run into any accessibility issues, <a href="https://www.fetchdesigns.com/contact" rel="nofollow ugc">please report them</a> to help make the plugin more inclusive for all users.</li>
<li>And much more… <a href="https://www.fetchdesigns.com/sign-up-sheets-wordpress-plugin/" rel="nofollow ugc">full list of Sign-up Sheets features</a></li>
</ul>
The Pro version of Sign-Up Sheets includes the following features:
<ul>
<li>Ability to create <a href="https://www.fetchdesigns.com/doc/custom-fields/" rel="nofollow ugc">Custom Task fields and Custom Sign-up form fields</a></li>
<li>Automatically sends reminder emails before an event (optional)</li>
<li>Allows customization of the confirmation and reminder emails per sheet</li>
<li>Assign <a href="https://www.fetchdesigns.com/doc/sheet-categories/" rel="nofollow ugc">categories to sign-up sheets</a> and display a list of current sheets for a specific category.</li>
<li>Logged-in user can edit their own sign-ups</li>
<li>Spot Locking – Locks and holds a spot for 3 minutes when a user accesses the sign-up form (optional)</li>
<li><a href="https://www.fetchdesigns.com/doc/compact-semi-compact-standard-display-modes/" rel="nofollow ugc">Compact and Semi-Compact display modes</a> to condense tasks with a large number of spots into a single line (optional)</li>
<li>Enable sign-up limits per task</li>
<li>And much more… <a href="https://www.fetchdesigns.com/sign-up-sheets-wordpress-plugin/" rel="nofollow ugc">full list of Sign-up Sheets features</a></li>
</ul>
Sign-up Sheets is currently being used by organizations and businesses for non-profit and church volunteer opportunities, schools and PTO/PTA volunteering, club sign-ups, photographer and meeting room timeslot sign-ups, and more. It’s a great alternative to monthly paid services like SignUpGenius and allows you to control your own sign-ups right on your WordPress site.

Sign-up Sheets

An online sign-up sheet manager where your users can sign up for tasks.

Login Tweaks by Next Page vs Sign-up Sheets