diff --git a/android/app/build.gradle b/android/app/build.gradle
index 15f0fcd..fdc88ed 100644
--- a/android/app/build.gradle
+++ b/android/app/build.gradle
@@ -24,7 +24,7 @@ if (flutterVersionName == null) {
 }
 
 android {
-    namespace = "com.example.calculator"
+    namespace = "com.felipecastrosales.calculator"
     compileSdk = flutter.compileSdkVersion
     ndkVersion = flutter.ndkVersion
 
@@ -35,7 +35,7 @@ android {
 
     defaultConfig {
         // TODO: Specify your own unique Application ID (https://developer.android.com/studio/build/application-id.html).
-        applicationId = "com.example.calculator"
+        applicationId = "com.felipecastrosales.calculator"
         // You can update the following values to match your application needs.
         // For more information, see: https://docs.flutter.dev/deployment/android#reviewing-the-gradle-build-configuration.
         minSdk = flutter.minSdkVersion
diff --git a/android/app/src/main/kotlin/com/example/calculator/MainActivity.kt b/android/app/src/main/kotlin/com/example/calculator/MainActivity.kt
index ec4f652..fc94ea9 100644
--- a/android/app/src/main/kotlin/com/example/calculator/MainActivity.kt
+++ b/android/app/src/main/kotlin/com/example/calculator/MainActivity.kt
@@ -1,4 +1,4 @@
-package com.example.calculator
+package com.felipecastrosales.calculator
 
 import io.flutter.embedding.android.FlutterActivity
 
diff --git a/ios/Runner.xcodeproj/project.pbxproj b/ios/Runner.xcodeproj/project.pbxproj
index 9c8fd0e..41789b1 100644
--- a/ios/Runner.xcodeproj/project.pbxproj
+++ b/ios/Runner.xcodeproj/project.pbxproj
@@ -369,7 +369,7 @@
 					"$(inherited)",
 					"@executable_path/Frameworks",
 				);
-				PRODUCT_BUNDLE_IDENTIFIER = com.example.calculator;
+				PRODUCT_BUNDLE_IDENTIFIER = com.felipecastrosales.calculator;
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SWIFT_OBJC_BRIDGING_HEADER = "Runner/Runner-Bridging-Header.h";
 				SWIFT_VERSION = 5.0;
@@ -385,7 +385,7 @@
 				CURRENT_PROJECT_VERSION = 1;
 				GENERATE_INFOPLIST_FILE = YES;
 				MARKETING_VERSION = 1.0;
-				PRODUCT_BUNDLE_IDENTIFIER = com.example.calculator.RunnerTests;
+				PRODUCT_BUNDLE_IDENTIFIER = com.felipecastrosales.calculator.RunnerTests;
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SWIFT_ACTIVE_COMPILATION_CONDITIONS = DEBUG;
 				SWIFT_OPTIMIZATION_LEVEL = "-Onone";
@@ -402,7 +402,7 @@
 				CURRENT_PROJECT_VERSION = 1;
 				GENERATE_INFOPLIST_FILE = YES;
 				MARKETING_VERSION = 1.0;
-				PRODUCT_BUNDLE_IDENTIFIER = com.example.calculator.RunnerTests;
+				PRODUCT_BUNDLE_IDENTIFIER = com.felipecastrosales.calculator.RunnerTests;
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SWIFT_VERSION = 5.0;
 				TEST_HOST = "$(BUILT_PRODUCTS_DIR)/Runner.app/$(BUNDLE_EXECUTABLE_FOLDER_PATH)/Runner";
@@ -417,7 +417,7 @@
 				CURRENT_PROJECT_VERSION = 1;
 				GENERATE_INFOPLIST_FILE = YES;
 				MARKETING_VERSION = 1.0;
-				PRODUCT_BUNDLE_IDENTIFIER = com.example.calculator.RunnerTests;
+				PRODUCT_BUNDLE_IDENTIFIER = com.felipecastrosales.calculator.RunnerTests;
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SWIFT_VERSION = 5.0;
 				TEST_HOST = "$(BUILT_PRODUCTS_DIR)/Runner.app/$(BUNDLE_EXECUTABLE_FOLDER_PATH)/Runner";
@@ -549,7 +549,7 @@
 					"$(inherited)",
 					"@executable_path/Frameworks",
 				);
-				PRODUCT_BUNDLE_IDENTIFIER = com.example.calculator;
+				PRODUCT_BUNDLE_IDENTIFIER = com.felipecastrosales.calculator;
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SWIFT_OBJC_BRIDGING_HEADER = "Runner/Runner-Bridging-Header.h";
 				SWIFT_OPTIMIZATION_LEVEL = "-Onone";
@@ -572,7 +572,7 @@
 					"$(inherited)",
 					"@executable_path/Frameworks",
 				);
-				PRODUCT_BUNDLE_IDENTIFIER = com.example.calculator;
+				PRODUCT_BUNDLE_IDENTIFIER = com.felipecastrosales.calculator;
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SWIFT_OBJC_BRIDGING_HEADER = "Runner/Runner-Bridging-Header.h";
 				SWIFT_VERSION = 5.0;
diff --git a/linux/CMakeLists.txt b/linux/CMakeLists.txt
index 4b6fa3b..e07585e 100644
--- a/linux/CMakeLists.txt
+++ b/linux/CMakeLists.txt
@@ -7,7 +7,7 @@ project(runner LANGUAGES CXX)
 set(BINARY_NAME "calculator")
 # The unique GTK application identifier for this application. See:
 # https://wiki.gnome.org/HowDoI/ChooseApplicationID
-set(APPLICATION_ID "com.example.calculator")
+set(APPLICATION_ID "com.felipecastrosales.calculator")
 
 # Explicitly opt in to modern CMake behaviors to avoid warnings with recent
 # versions of CMake.
diff --git a/macos/Runner.xcodeproj/project.pbxproj b/macos/Runner.xcodeproj/project.pbxproj
index 5b2d01b..7e02f96 100644
--- a/macos/Runner.xcodeproj/project.pbxproj
+++ b/macos/Runner.xcodeproj/project.pbxproj
@@ -385,7 +385,7 @@
 				CURRENT_PROJECT_VERSION = 1;
 				GENERATE_INFOPLIST_FILE = YES;
 				MARKETING_VERSION = 1.0;
-				PRODUCT_BUNDLE_IDENTIFIER = com.example.calculator.RunnerTests;
+				PRODUCT_BUNDLE_IDENTIFIER = com.felipecastrosales.calculator.RunnerTests;
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SWIFT_VERSION = 5.0;
 				TEST_HOST = "$(BUILT_PRODUCTS_DIR)/calculator.app/$(BUNDLE_EXECUTABLE_FOLDER_PATH)/calculator";
@@ -399,7 +399,7 @@
 				CURRENT_PROJECT_VERSION = 1;
 				GENERATE_INFOPLIST_FILE = YES;
 				MARKETING_VERSION = 1.0;
-				PRODUCT_BUNDLE_IDENTIFIER = com.example.calculator.RunnerTests;
+				PRODUCT_BUNDLE_IDENTIFIER = com.felipecastrosales.calculator.RunnerTests;
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SWIFT_VERSION = 5.0;
 				TEST_HOST = "$(BUILT_PRODUCTS_DIR)/calculator.app/$(BUNDLE_EXECUTABLE_FOLDER_PATH)/calculator";
@@ -413,7 +413,7 @@
 				CURRENT_PROJECT_VERSION = 1;
 				GENERATE_INFOPLIST_FILE = YES;
 				MARKETING_VERSION = 1.0;
-				PRODUCT_BUNDLE_IDENTIFIER = com.example.calculator.RunnerTests;
+				PRODUCT_BUNDLE_IDENTIFIER = com.felipecastrosales.calculator.RunnerTests;
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SWIFT_VERSION = 5.0;
 				TEST_HOST = "$(BUILT_PRODUCTS_DIR)/calculator.app/$(BUNDLE_EXECUTABLE_FOLDER_PATH)/calculator";
diff --git a/macos/Runner/Configs/AppInfo.xcconfig b/macos/Runner/Configs/AppInfo.xcconfig
index 1c595b1..3f3811f 100644
--- a/macos/Runner/Configs/AppInfo.xcconfig
+++ b/macos/Runner/Configs/AppInfo.xcconfig
@@ -8,7 +8,7 @@
 PRODUCT_NAME = calculator
 
 // The application's bundle identifier
-PRODUCT_BUNDLE_IDENTIFIER = com.example.calculator
+PRODUCT_BUNDLE_IDENTIFIER = com.felipecastrosales.calculator
 
 // The copyright displayed in application information
 PRODUCT_COPYRIGHT = Copyright © 2024 com.example. All rights reserved.