JohnnyPea

This plugin adds registration date and last login date columns on the “Users” page. 
It also checks whether user logs in within 30 days after the registration if he does not his account is deleted – this option is disabled by default, you can change this settings on Check Last Login Settings page in Settings menu.
WARNING! The plugin is not updating the login time when logging through stored login cookies.
I am open to suggestions to improve the plugin !

Check Last Login

Simple plugin which checks user's login status and displays registration date and last login date columns on the "Users" page.

mikakaltoft

Since WordPress 4.3, a strong email is automatically created for a user while registering a new user. However, the user will receive an email, with a password reset link, after registration.
Not everyone wants that email to be sent out – so this plugin does one thing – Stops registration emails from being sent out.

Disable New User Notification

Great Plugin .. safe, clean and reusable code



Well written plugin

Chang of rating

Disable the user notification email that is sent to the user, with a password reset link, after registration.

Check Last Login vs Disable New User Notification