kriss73

This plugin creates a Dashboard Widget and a admin page to display IP, username, date and time of each user login. 
Only administrators can see this information on admin panel.

WP Login Register

Keep track the users login. The plugin allows to save the data of each user's login (IP, username, date, time).

Mark Jaquith

The <a href="https://wordpress.org/extend/plugins/jetpack/" rel="ugc">Jetpack</a> plugin by Automattic does something sneaky: it auto-activates new Jetpack modules. Instead of allowing you to opt in to new modules, Jetpack cheerfully activates them without your permission. These modules can change how your site works and looks.
Manual Control puts a stop to that unwanted behavior. It prevents auto-activation of new Jetpack modules.
Metal texture in the plugin header image by <a href="http://urbandirty.com/gallery/photo/2568483179-m" rel="nofollow ugc">Urban Dirty</a>.

Manual Control for Jetpack

Jetpack auto-activates new modules, without asking your permission. This plugin stops that.

WP Login Register vs Manual Control for Jetpack