Push notifications are like Desktop notifications but with some key difference. Desktop notifications, also called Web notifications, are requested directly by the client while Push notifications come from a server. The main difference is that the Push notifications work always, also if your device is offline, or AiX is not open. Also, they are persistent and always visible until closed. Push notifications require an external service to work. We use Pusher, it is free to use for the admin notifications sent to the agents, and it’s free to use for up to 2000 users/devices when sending notifications to the users.