1. Head over to the Firebase Console.
2. Click "Add Project" and just follow the steps to set up a new project.
3. Once your project is ready, add an app to it:

• For Android: Register your app by adding the package name, then download the google-services.json file and place it in your app's module directory.
• For iOS: Register your app by adding the bundle identifier, then download the GoogleService-Info.plist file and add it to your Xcode project.

1. For Android:

• Open the build.gradle file at the project level and add the Firebase SDK repository.

  ```groovy
  buildscript {
  repositories {
  // Make sure you have this line (if not, add it):
  google() // Google's Maven repository
  }
  dependencies {
  // Add this line:
  classpath 'com.google.gms:google-services:4.3.10'
  }
  }
  ```

• Open the build.gradle file at the app level and add the Firebase Analytics dependency and apply the Google services plugin.

  ```groovy
  apply plugin: 'com.android.application'
  apply plugin: 'com.google.gms.google-services'

  dependencies {
  // Add this line:
  implementation 'com.google.firebase:firebase-analytics:20.0.2'
  }
  ```

1. For iOS:

• Open your Podfile and add Firebase Analytics.

  ```ruby
  pod 'Firebase/Analytics'
  ```

• Install the pods by running pod install.

• Open your .xcworkspace file to launch Xcode, then initialize Firebase in your AppDelegate.swift file.

 \`\`\`swift
 import Firebase

 @UIApplicationMain
 class AppDelegate: UIResponder, UIApplicationDelegate {

     var window: UIWindow?

     func application(\_ application: UIApplication,
                      didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
         FirebaseApp.configure()
         return true
     }
 }
 \`\`\`

1. Use the logEvent method to log custom events in your app.

• Android:

  ```java
  FirebaseAnalytics firebaseAnalytics = FirebaseAnalytics.getInstance(context);

  Bundle bundle = new Bundle();
  bundle.putString(FirebaseAnalytics.Param.ITEM_ID, "id123");
  bundle.putString(FirebaseAnalytics.Param.ITEM_NAME, "name123");
  bundle.putString(FirebaseAnalytics.Param.CONTENT_TYPE, "image");
  firebaseAnalytics.logEvent(FirebaseAnalytics.Event.SELECT_CONTENT, bundle);
  ```

• iOS:

  ```swift
  Analytics.logEvent(AnalyticsEventSelectContent, parameters: [
  AnalyticsParameterItemID: "id123" as NSObject,
  AnalyticsParameterItemName: "name123" as NSObject,
  AnalyticsParameterContentType: "image" as NSObject
  ])
  ```

1. Use the setUserProperty method to set user properties that will be associated with all events.

• Android:

  ```java
  FirebaseAnalytics firebaseAnalytics = FirebaseAnalytics.getInstance(context);
  firebaseAnalytics.setUserProperty("favorite_food", "pizza");
  ```

• iOS:

  ```swift
  Analytics.setUserProperty("pizza", forName: "favorite_food")
  ```

1. Open the Firebase Console and navigate to your project.
2. Click on "Analytics" in the left-hand menu.
3. Go to the "Events" tab to view the events logged.
4. Switch to the "User Properties" tab to see the properties you've set.

These steps will ensure that Firebase Analytics is integrated into the application, and custom events and user properties are properly reported and tracked.