Some Wordpress plugins are often updated, which is good think. Plugins that are updated are 100% compatible with last Wordpress version and they also are the most secure possible. A plugin that has not been updated for a long time might not work with last Wordpress version and might create a security breach for you website.

WooCommerce Product Fees allows you to add additional fees at checkout based on products that are in the cart.

Powerful Drag & Drop Page Builder with UI that feels like home with WordPress.

Automatically add links to published posts to your Facebook pages, groups, etc.

Restrict access to readers who login with a permitted email addresses (no usernames or passwords!). Ideal for private/personal/family blogs.
![Posts per Cat [Unmaintained] Posts per Cat [Unmaintained]](images/wordpress-plugin.png)
Group recent posts by category and show them inside boxes organized to columns.

BuddyPress Activity Privacy plugin add a privacy level to activity stream component.

Puts the site into maintenance mode by sending a '503 Service Unavailable' status to all unauthenticated clients.