Plugins : app_links: android_play_install_referrer: Link to share : https://play.google.com/store/apps/details?id=com.erer&referrer=referral_code%3DTEST123 Flutter Code : import 'package:app_links/app_links.dart' ; import 'package:android_play_install_referrer/android_play_install_referrer.dart' ; import 'package:flutter/foundation.dart' ; import 'package:shared_preferences/shared_preferences.dart' ; class DeepLinkService { static const String _referralKey = 'referral_code' ; static final AppLinks _appLinks = AppLinks (); static Future < void > initDeepLinks () async { debugPrint ( 'Initializing deep links...' ); // 1️⃣ Handle real-time deep/link stream try { final Uri ? initialUri = await _appLinks . getInitialAppLink (); if ( initialUri != null ) { debugPrint ( 'Initial deep link: $initialUri'...