What is Push Notification?

Turkish: Push Bildirimi

A push notification is an app message delivered to a user's device through a permission and subscription flow, even when the app is closed.

What is a Push Notification?

A push notification is a short application message that can reach a user’s device even when the app is not actively open. It is useful for time-sensitive information such as order status, security alerts, appointment reminders, or shipping updates.

On mobile apps, notifications are usually delivered through Apple Push Notification service or Firebase Cloud Messaging. On the web, the browser grants permission, the application creates a push subscription, and a service worker receives the message and displays it to the user.

How It Works

  1. The user grants notification permission.
  2. The app receives a unique subscription or token for the device or browser.
  3. The server associates that token with the user account.
  4. When an event occurs, the server sends a message to the push provider.
  5. The device displays the notification; tapping it opens the target screen.

Business Use

Push notifications require careful segmentation and frequency control. Cart reminders, delivery updates, and critical security alerts can be useful; irrelevant campaign blasts often lead users to revoke permission and trust the brand less.

A service worker is the browser-side piece of web push, while PWA experiences often design notifications, offline behavior, and home-screen installation together.