Jetpack Notifications enables you to receive instant notifications in your dashboard or your mobile device when anyone comments on your site. This helps you be notified of user interactions right away so you can easily jump to respond.
Notifications are automatically enabled when you connect Jetpack to your WordPress.com account. Once you do this you can see the first type of notifications in the admin bar when you’re logged in to your site. You can click on any of the notices to get options like moderating or responding without leaving the page you are on.
You can also setup desktop notifications from your WordPress.com notifications page and enable Browser Notifications. Now you’ll receive notifications on your desktop via your browser that let you click through to see and do more from directly within your WordPress.com Dashboard, which has the same toolbar for notifications.
The final level of notifications involve installing the WordPress mobile app on your device of choice and connect it to your blog. Then you’ll be able to receive native notifications on your device and manage them from within the WordPress app. You can get the apps in the Apple or Google Play app stores.
If you want quick updates on user interactions on your site check out the different options from Jetpack Notifications. You can also tweak some notification settings for the different sites you have connected in the WordPress notifications panel.