Sébastien SERRE

WP Post Updated will allow your subscriber to receive a mail when an post is updated on your website. In the back-office, Admin can setup the post Type to follow

WP POST Updated

WP Post Updated will allow your subscriber to receive a mail when an post is…

ArBn

Send notification to Android & IOS app users whenever post is published or updated using Google service, Firebase Cloud Messaging / Firebase Push Notification. By default it is set to topic post so make sure your application user subscribes to topic post.
Features 
* Notify on post publish/update with image 
* Control directly from post sidebar

ARROWDAN Notifier

Notify users using Firebase Cloud Messaging (FCM) when post is published or updated.

WP POST Updated vs ARROWDAN Notifier