Eric Mann

Adds <code>$_SESSION</code> functionality to WordPress, leveraging the database where needed to power multi-server installations.
Every visitor, logged in or not, will be issued a session. Session data will be stored in the WordPress database by default 
to deal with load balancing issues if multiple application servers are being used. In addition, the session collection will 
also be stored in memory for rapid use within WordPress.
Session data stored in the database can be encrypted at rest for better security.

WP Session Manager

Amazing!

good

I am using WP Session Manager in several projects since some years. Initially, I was looking for a more reliable session management compared to standard PHP sessions – and found it in WP Session Manager. Thanks for this great plugin!

Very useful and reliable

Good code quality, very useful when you need the joy of sessions :) Keep it up.

Good job

Nomad Programmer

It will help you to make only one logged in at a time on WordPress sites. if user wants to log in two or other places than it will destroy all other sessions.
This Plugin uses function like WordPress 4.1, that have a button on the user profile screen which clears all other sessions, and on the user editing screen which clears all sessions. This plug-in can limit simultaneous login. This plugin use for every user automatically.
<h3>Licence</h3>
<a href="https://wordpress.org/about/gpl/" rel="ugc">GNU General Public License</a>

One Active session

Working till now

This plugin clears all other logged in sessions and allow only one login by one user

WP Session Manager vs One Active session