roggie

The WordPress “Meta” widget uses a lot of screen space and presents more information than some site designers would like. The Login/Logout plugin provides web designers with a compact alternative.
Available translations: English, French, German, Italian, Spanish, Catalan, Dutch, Polish, Norwegian and Persian.
The plugin can be used as a widget in themes that include sidebars. Alternatively, it can be added to your site’s footer or any other part of the site by inserting “rh_hype_lilo(); into your site’s PHP.
When the user is not logged in, the plugin presents a link so the user can Login, and an option allows another link to Register. Once logged in, users are redirected back to the page they came from. The plugin also displays the username and has an option to also display their email address.
There is also a link to Logout and, depending on the user’s role, a link to their profile or to the main site administration pages. Users are redirected back to the page they came from after they logout.
When used as a widget, a hyperlink option enables the widget to display an arbitrary number of hyperlinks to other sites/pages. These links are displayed only to logged in users. Other options enable the appearance of the widget to be customized to suit the theme design.
You must logout and in again to see changes such as new links etc. in the widget.
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Login-Logout

Adds simple, clean links so users can login/logout & register easily. Highly customisable, & can be used as a widget or inserted into your sit …

codersantosh

AcmeIT

AddonsPress

Yam B Chhetri

This plugin limits login to one device at a time for a user. 
If the same user login from another device, that user won’t be allowed to log in. 
Admin can set up an ‘Already login message’ for that user.
If the user has been inactive for too long, then the user is automatically logged out and that user allows to log in again either from the same device or another device. 
Admin can set up ‘Auto Logout Duration’ for users.
It tracks the user’s activity like user status ( Active/Inactive ) and Last active time. 
Admin can view user status from WP Admin > Users > All users. From the “User Status” column, the user current status can be viewed.
Admin can set up only one device login limit plugin from WP Admin > Settings > Limit login
Note: This plugin is compatible with most of the membership plugins. 
If you find any issues, please use <a href="https://wordpress.org/support/plugin/only-one-device-login-limit" rel="ugc">support forum</a> to report.

Only one device login limit

Very useful plugin for security purposes



works like a charm

Limit login to one device at a time for a user. Configured options from the admin

Login-Logout vs Only one device login limit