Published: February 16, 2026

Author: Václav Švára

Generated with assistance from: Claude (Anthropic AI)

Table of Contents

Introduction

Architecture Overview

Prerequisites

Firebase Project Setup

iOS Configuration

The APNs Certificate vs Authentication Key Dilemma

Creating APNs Certificates

iOS Native Implementation

Android Configuration

Angular Service Implementation

Backend Integration

Testing Push Notifications

Common Issues and Solutions

Production Considerations

Conclusion

Introduction

Push notifications are essential for modern mobile applications, enabling real-time communication with users even when the app isn't running.…