CodeCave

CodeCave Admin Security Auditor is a lightweight plugin that helps you monitor user activity by tracking and displaying the last login time for each user in your WordPress site.
Features:
<ul>
<li>Automatically tracks the last login time for all users</li>
<li>Displays last login information in the WordPress admin users table</li>
<li>Sortable last login column for easy user management</li>
<li>Shows “Never” for users who haven’t logged in since plugin installation</li>
<li>Timezone-aware display (uses your WordPress timezone settings)</li>
<li>Clean uninstall – removes all data when plugin is deleted</li>
<li>Translation ready</li>
<li>No configuration needed – works out of the box</li>
</ul>
Use Cases:
<ul>
<li>Monitor user engagement and activity</li>
<li>Identify inactive user accounts</li>
<li>Security auditing and compliance</li>
<li>User account cleanup and maintenance</li>
<li>Track user adoption of your WordPress site</li>
</ul>
Privacy and Data:
This plugin stores the last login timestamp as user metadata in your WordPress database. No data is sent to external servers. When you uninstall the plugin, all stored data is automatically removed.
<h3>Developer Notes</h3>
Accessing Last Login Data Programmatically:
You can retrieve the last login timestamp for a user:
<pre><code>$auditor = CodeCave_Admin_Security_Auditor::get_instance();
$last_login = $auditor->get_last_login( $user_id );

if ( $last_login ) {
 echo 'Last login: ' . date( 'Y-m-d H:i:s', $last_login );
} else {
 echo 'Never logged in';
}
</code></pre>
Hooks and Filters:
The plugin uses standard WordPress hooks and does not currently provide custom hooks. This may be added in future versions based on user feedback.

CodeCave Admin Security Auditor

Track and display the last login time for each user in the WordPress admin users table.

Technology Wisdom

TW Login Alert & Tracker is a lightweight yet powerful plugin designed to help administrators monitor login activity and enhance site security. 
It automatically tracks every user login and saves the date/time to their profile. A new “Last Login” column appears in the WordPress Users list, helping you quickly view user activity. 
The plugin also sends real-time email notifications to the site administrator each time a user logs in, including when the admin logs in. You now have full control over these alerts with a dedicated Settings page where you can enable or disable email notifications as needed. 
No configuration is required on activation. However, the Login Alert Settings page (under Settings) gives you the flexibility to toggle notifications anytime.
<h4>Features</h4>
<ul>
<li>Tracks each user login and records the timestamp as user meta</li>
<li>Adds a “Last Login” column to the Users admin table</li>
<li>Sends real-time email alerts to the site administrator on every login</li>
<li>Settings page with checkbox to enable or disable email alerts</li>
<li>Emails are sent from a smart “info@yourdomain.com” address dynamically</li>
<li>Fully supports all WordPress user roles (admins, editors, customers, etc.)</li>
<li>Built-in Tutorial page for guidance</li>
<li>Lightweight, fast, and requires no configuration out of the box</li>
</ul>
<h3>License</h3>
This plugin is licensed under the GPL-2.0+ License. You can freely use, modify, and distribute it under the terms of this license. See the full license at: https://opensource.org/licenses/GPL-2.0

TW Login Alert & Tracker

Track who logs in and when — and receive instant email alerts for every login event.

CodeCave Admin Security Auditor vs TW Login Alert & Tracker