diff --git a/android/app/build.gradle.kts b/android/app/build.gradle.kts
index 4c23f4b..a1c968f 100644
--- a/android/app/build.gradle.kts
+++ b/android/app/build.gradle.kts
@@ -16,7 +16,7 @@ if (keystorePropertiesFile.exists()) {
 
 
 android {
-    namespace = "com.example.e_receipt_mobile"
+    namespace = "com.kbz.utsmm.e_receipt_mobile"
     compileSdk = flutter.compileSdkVersion
     ndkVersion = flutter.ndkVersion
 
@@ -31,7 +31,7 @@ android {
 
     defaultConfig {
         // TODO: Specify your own unique Application ID (https://developer.android.com/studio/build/application-id.html).
-        applicationId = "com.example.e_receipt_mobile"
+        applicationId = "com.kbz.utsmm.e_receipt_mobile"
         // You can update the following values to match your application needs.
         // For more information, see: https://flutter.dev/to/review-gradle-config.
         minSdk = flutter.minSdkVersion
diff --git a/android/app/src/main/kotlin/com/example/e_receipt_mobile/MainActivity.kt b/android/app/src/main/kotlin/com/kbz/utsmm/e_receipt_mobile/MainActivity.kt
similarity index 68%
rename from android/app/src/main/kotlin/com/example/e_receipt_mobile/MainActivity.kt
rename to android/app/src/main/kotlin/com/kbz/utsmm/e_receipt_mobile/MainActivity.kt
index 3e90457..a4484e8 100644
--- a/android/app/src/main/kotlin/com/example/e_receipt_mobile/MainActivity.kt
+++ b/android/app/src/main/kotlin/com/kbz/utsmm/e_receipt_mobile/MainActivity.kt
@@ -1,5 +1,5 @@
-package com.example.e_receipt_mobile
-
-import io.flutter.embedding.android.FlutterActivity
-
-class MainActivity : FlutterActivity()
+package com.kbz.utsmm.e_receipt_mobile
+
+import io.flutter.embedding.android.FlutterActivity
+
+class MainActivity : FlutterActivity()
diff --git a/ios/Runner.xcodeproj/project.pbxproj b/ios/Runner.xcodeproj/project.pbxproj
index 35429cc..dd30f3d 100644
--- a/ios/Runner.xcodeproj/project.pbxproj
+++ b/ios/Runner.xcodeproj/project.pbxproj
@@ -368,7 +368,7 @@
 					"$(inherited)",
 					"@executable_path/Frameworks",
 				);
-				PRODUCT_BUNDLE_IDENTIFIER = com.example.eReceiptMobile;
+				PRODUCT_BUNDLE_IDENTIFIER = com.kbz.utsmm.e_receipt_mobile;
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SWIFT_OBJC_BRIDGING_HEADER = "Runner/Runner-Bridging-Header.h";
 				SWIFT_VERSION = 5.0;
@@ -384,7 +384,7 @@
 				CURRENT_PROJECT_VERSION = 1;
 				GENERATE_INFOPLIST_FILE = YES;
 				MARKETING_VERSION = 1.0;
-				PRODUCT_BUNDLE_IDENTIFIER = com.example.eReceiptMobile.RunnerTests;
+				PRODUCT_BUNDLE_IDENTIFIER = com.kbz.utsmm.e_receipt_mobile.RunnerTests;
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SWIFT_ACTIVE_COMPILATION_CONDITIONS = DEBUG;
 				SWIFT_OPTIMIZATION_LEVEL = "-Onone";
@@ -401,7 +401,7 @@
 				CURRENT_PROJECT_VERSION = 1;
 				GENERATE_INFOPLIST_FILE = YES;
 				MARKETING_VERSION = 1.0;
-				PRODUCT_BUNDLE_IDENTIFIER = com.example.eReceiptMobile.RunnerTests;
+				PRODUCT_BUNDLE_IDENTIFIER = com.kbz.utsmm.e_receipt_mobile.RunnerTests;
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SWIFT_VERSION = 5.0;
 				TEST_HOST = "$(BUILT_PRODUCTS_DIR)/Runner.app/$(BUNDLE_EXECUTABLE_FOLDER_PATH)/Runner";
@@ -416,7 +416,7 @@
 				CURRENT_PROJECT_VERSION = 1;
 				GENERATE_INFOPLIST_FILE = YES;
 				MARKETING_VERSION = 1.0;
-				PRODUCT_BUNDLE_IDENTIFIER = com.example.eReceiptMobile.RunnerTests;
+				PRODUCT_BUNDLE_IDENTIFIER = com.kbz.utsmm.e_receipt_mobile.RunnerTests;
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SWIFT_VERSION = 5.0;
 				TEST_HOST = "$(BUILT_PRODUCTS_DIR)/Runner.app/$(BUNDLE_EXECUTABLE_FOLDER_PATH)/Runner";
@@ -547,7 +547,7 @@
 					"$(inherited)",
 					"@executable_path/Frameworks",
 				);
-				PRODUCT_BUNDLE_IDENTIFIER = com.example.eReceiptMobile;
+				PRODUCT_BUNDLE_IDENTIFIER = com.kbz.utsmm.e_receipt_mobile;
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SWIFT_OBJC_BRIDGING_HEADER = "Runner/Runner-Bridging-Header.h";
 				SWIFT_OPTIMIZATION_LEVEL = "-Onone";
@@ -569,7 +569,7 @@
 					"$(inherited)",
 					"@executable_path/Frameworks",
 				);
-				PRODUCT_BUNDLE_IDENTIFIER = com.example.eReceiptMobile;
+				PRODUCT_BUNDLE_IDENTIFIER = com.kbz.utsmm.e_receipt_mobile;
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SWIFT_OBJC_BRIDGING_HEADER = "Runner/Runner-Bridging-Header.h";
 				SWIFT_VERSION = 5.0;
diff --git a/pubspec.lock b/pubspec.lock
index aad91f1..45d3cc0 100644
--- a/pubspec.lock
+++ b/pubspec.lock
@@ -41,6 +41,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "2.1.2"
+  change_app_package_name:
+    dependency: "direct dev"
+    description:
+      name: change_app_package_name
+      sha256: "8e43b754fe960426904d77ed4c62fa8c9834deaf6e293ae40963fa447482c4c5"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.5.0"
   characters:
     dependency: transitive
     description:
@@ -236,10 +244,10 @@ packages:
     dependency: transitive
     description:
       name: matcher
-      sha256: "12956d0ad8390bbcc63ca2e1469c0619946ccb52809807067a7020d57e647aa6"
+      sha256: dc0b7dc7651697ea4ff3e69ef44b0407ea32c487a39fff6a4004fa585e901861
       url: "https://pub.dev"
     source: hosted
-    version: "0.12.18"
+    version: "0.12.19"
   material_color_utilities:
     dependency: transitive
     description:
@@ -473,10 +481,10 @@ packages:
     dependency: transitive
     description:
       name: test_api
-      sha256: "93167629bfc610f71560ab9312acdda4959de4df6fac7492c89ff0d3886f6636"
+      sha256: "8161c84903fd860b26bfdefb7963b3f0b68fee7adea0f59ef805ecca346f0c7a"
       url: "https://pub.dev"
     source: hosted
-    version: "0.7.9"
+    version: "0.7.10"
   typed_data:
     dependency: transitive
     description:
diff --git a/pubspec.yaml b/pubspec.yaml
index f4856ea..dc13a61 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -51,6 +51,7 @@ dev_dependencies:
   # package. See that file for information about deactivating specific lint
   # rules and activating additional ones.
   flutter_lints: ^6.0.0
+  change_app_package_name: ^1.5.0
 
 # For information on the generic Dart part of this file, see the
 # following page: https://dart.dev/tools/pub/pubspec