Push Notification is a real-time message sent from an application or server to a user’s device, even when the app is not actively open. It is used to deliver timely updates, alerts, and reminders directly to the user’s screen.
In mobile and web development, push notifications are widely used to improve user engagement and retention by sending personalized and instant updates. They are managed through backend services and notification APIs.
For example:
- A shopping app sends a notification about order status updates.
- A social media app alerts users about new messages or likes.
- A news app sends breaking news alerts in real time.
- A banking app notifies users about transactions or security activities.
Common technologies and concepts related to push notifications include:
- Firebase Cloud Messaging (FCM)
- Apple Push Notification Service (APNs)
- Mobile Apps (Android & iOS)
- Backend Servers
- User Tokens / Device IDs
- Real-time Messaging
- Notification APIs
- User Engagement
- Event-driven Systems
