EasySocial Web Push Notifications (OneSignal) 2.0.13

It allows users to subscribe to notifications and also allow them to get notified whenever a new notification, friend request or conversation is created.
This application integrates with OneSignal web push notifications.
This app requires you to create an account at https://onesignal.com
Browser / OS Compatibility list: https://documentation.onesignal.com/docs/web-push-setup
Documentation: https://stackideas.com/docs/easysocial/administrators/configuration/onesignal-integration