Radek Mezulanik

Show the number of pending posts waiting for approval in the admin menu, if any. Also automatically supports custom post types. Sends email notification of posts pending review.

Zedna pending post indicator and notifier

Display number of posts waiting for approval in administration. Send an email about waiting approval, approved/rejected post.

ericjuden

Approval Workflow is meant to create a workflow process in WordPress. This plugin adds a box to the post edit screen when a user does not have publish permissions for that post type. It also allows you to set a WordPress role as the approvers. Note: this role must have publish permissions. The approvers get notified by email when someone has submitted something to the workflow. This works on WordPress Multisite too.
If you need help setting up the roles, I’d recommend the <a href="https://wordpress.org/extend/plugins/members/" title="Members plugin" rel="ugc">Members plugin</a>.

Approval Workflow

Approval Workflow is meant to create a workflow process in WordPress. This plugin adds a box to the post edit screen when a user does not have publish …

Zedna pending post indicator and notifier vs Approval Workflow