diff --git a/packages/google_maps_flutter/google_maps_flutter_ios/CHANGELOG.md b/packages/google_maps_flutter/google_maps_flutter_ios/CHANGELOG.md
index 53957aa91377..179691037daf 100644
--- a/packages/google_maps_flutter/google_maps_flutter_ios/CHANGELOG.md
+++ b/packages/google_maps_flutter/google_maps_flutter_ios/CHANGELOG.md
@@ -1,3 +1,7 @@
+## 2.18.1
+
+* Removes conditional header logic that broke add-to-app builds.
+
 ## 2.18.0
 
 * Adds support for advanced markers.
diff --git a/packages/google_maps_flutter/google_maps_flutter_ios/ios/google_maps_flutter_ios.podspec b/packages/google_maps_flutter/google_maps_flutter_ios/ios/google_maps_flutter_ios.podspec
index 529c229438cd..d18e53fac837 100644
--- a/packages/google_maps_flutter/google_maps_flutter_ios/ios/google_maps_flutter_ios.podspec
+++ b/packages/google_maps_flutter/google_maps_flutter_ios/ios/google_maps_flutter_ios.podspec
@@ -38,8 +38,6 @@ Downloaded by pub (not CocoaPods).
   s.xcconfig = {
     'LIBRARY_SEARCH_PATHS' => '$(inherited) $(TOOLCHAIN_DIR)/usr/lib/swift/$(PLATFORM_NAME)/ $(SDKROOT)/usr/lib/swift',
     'LD_RUNPATH_SEARCH_PATHS' => '$(inherited) /usr/lib/swift',
-    # To handle the difference in framework names between CocoaPods and Swift Package Manager in shared code.
-    'GCC_PREPROCESSOR_DEFINITIONS' => '$(inherited) FGM_USING_COCOAPODS=1',
   }
   s.pod_target_xcconfig = { 'DEFINES_MODULE' => 'YES' }
   s.resource_bundles = {'google_maps_flutter_ios_privacy' => ['google_maps_flutter_ios/Sources/google_maps_flutter_ios/Resources/PrivacyInfo.xcprivacy']}
diff --git a/packages/google_maps_flutter/google_maps_flutter_ios/ios/google_maps_flutter_ios/Sources/google_maps_flutter_ios/include/google_maps_flutter_ios/GoogleMapsUtilsTrampoline.h b/packages/google_maps_flutter/google_maps_flutter_ios/ios/google_maps_flutter_ios/Sources/google_maps_flutter_ios/include/google_maps_flutter_ios/GoogleMapsUtilsTrampoline.h
index cf6399b5b39e..f28daee88163 100644
--- a/packages/google_maps_flutter/google_maps_flutter_ios/ios/google_maps_flutter_ios/Sources/google_maps_flutter_ios/include/google_maps_flutter_ios/GoogleMapsUtilsTrampoline.h
+++ b/packages/google_maps_flutter/google_maps_flutter_ios/ios/google_maps_flutter_ios/Sources/google_maps_flutter_ios/include/google_maps_flutter_ios/GoogleMapsUtilsTrampoline.h
@@ -2,11 +2,4 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-// If Swift Package Manager is in use, Objective-C headers are available under the
-// GoogleMapsUtilsObjC package. When using CocoaPods, the headers are provided by the
-// GoogleMapsUtils package.
-#ifdef FGM_USING_COCOAPODS
 @import GoogleMapsUtils;
-#else
-@import GoogleMapsUtilsObjC;
-#endif
diff --git a/packages/google_maps_flutter/google_maps_flutter_ios/pubspec.yaml b/packages/google_maps_flutter/google_maps_flutter_ios/pubspec.yaml
index 6b01ee3376a9..d8548ac8dac0 100644
--- a/packages/google_maps_flutter/google_maps_flutter_ios/pubspec.yaml
+++ b/packages/google_maps_flutter/google_maps_flutter_ios/pubspec.yaml
@@ -2,7 +2,7 @@ name: google_maps_flutter_ios
 description: iOS implementation of the google_maps_flutter plugin.
 repository: https://github.com/flutter/packages/tree/main/packages/google_maps_flutter/google_maps_flutter_ios
 issue_tracker: https://github.com/flutter/flutter/issues?q=is%3Aissue+is%3Aopen+label%3A%22p%3A+maps%22
-version: 2.18.0
+version: 2.18.1
 
 environment:
   sdk: ^3.10.0
diff --git a/packages/google_maps_flutter/google_maps_flutter_ios/tool/unshared_source_files.dart b/packages/google_maps_flutter/google_maps_flutter_ios/tool/unshared_source_files.dart
index 90d963c64dde..627f7e007ee0 100644
--- a/packages/google_maps_flutter/google_maps_flutter_ios/tool/unshared_source_files.dart
+++ b/packages/google_maps_flutter/google_maps_flutter_ios/tool/unshared_source_files.dart
@@ -10,4 +10,6 @@ const intentionallyUnsharedSourceFiles = <String>[
   'test/package_specific_test_import.dart',
   // Each package will have its own list.
   'tool/unshared_source_files.dart',
+  // Unshared due to https://github.com/flutter/flutter/issues/183441.
+  'ios/google_maps_flutter_ios/Sources/google_maps_flutter_ios/include/google_maps_flutter_ios/GoogleMapsUtilsTrampoline.h',
 ];
diff --git a/packages/google_maps_flutter/google_maps_flutter_ios_sdk10/tool/unshared_source_files.dart b/packages/google_maps_flutter/google_maps_flutter_ios_sdk10/tool/unshared_source_files.dart
index 8660b7e6a17e..dee386df465d 100644
--- a/packages/google_maps_flutter/google_maps_flutter_ios_sdk10/tool/unshared_source_files.dart
+++ b/packages/google_maps_flutter/google_maps_flutter_ios_sdk10/tool/unshared_source_files.dart
@@ -12,4 +12,6 @@ const intentionallyUnsharedSourceFiles = <String>[
   'test/package_specific_test_import.dart',
   // Each package will have its own list.
   'tool/unshared_source_files.dart',
+  // Unshared due to https://github.com/flutter/flutter/issues/183441.
+  'ios/google_maps_flutter_ios_sdk10/Sources/google_maps_flutter_ios_sdk10/include/google_maps_flutter_ios_sdk10/GoogleMapsUtilsTrampoline.h',
 ];
diff --git a/packages/google_maps_flutter/google_maps_flutter_ios_sdk9/tool/unshared_source_files.dart b/packages/google_maps_flutter/google_maps_flutter_ios_sdk9/tool/unshared_source_files.dart
index 1cfb85a852ac..7e0205065261 100644
--- a/packages/google_maps_flutter/google_maps_flutter_ios_sdk9/tool/unshared_source_files.dart
+++ b/packages/google_maps_flutter/google_maps_flutter_ios_sdk9/tool/unshared_source_files.dart
@@ -12,4 +12,6 @@ const intentionallyUnsharedSourceFiles = <String>[
   'test/package_specific_test_import.dart',
   // Each package will have its own list.
   'tool/unshared_source_files.dart',
+  // Unshared due to https://github.com/flutter/flutter/issues/183441.
+  'ios/google_maps_flutter_ios_sdk9/Sources/google_maps_flutter_ios_sdk9/include/google_maps_flutter_ios_sdk9/GoogleMapsUtilsTrampoline.h',
 ];
diff --git a/packages/google_maps_flutter/google_maps_flutter_ios_shared_code/ios/google_maps_flutter_ios/Sources/google_maps_flutter_ios/include/google_maps_flutter_ios/GoogleMapsUtilsTrampoline.h b/packages/google_maps_flutter/google_maps_flutter_ios_shared_code/ios/google_maps_flutter_ios/Sources/google_maps_flutter_ios/include/google_maps_flutter_ios/GoogleMapsUtilsTrampoline.h
deleted file mode 100644
index cf6399b5b39e..000000000000
--- a/packages/google_maps_flutter/google_maps_flutter_ios_shared_code/ios/google_maps_flutter_ios/Sources/google_maps_flutter_ios/include/google_maps_flutter_ios/GoogleMapsUtilsTrampoline.h
+++ /dev/null
@@ -1,12 +0,0 @@
-// Copyright 2013 The Flutter Authors
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-// If Swift Package Manager is in use, Objective-C headers are available under the
-// GoogleMapsUtilsObjC package. When using CocoaPods, the headers are provided by the
-// GoogleMapsUtils package.
-#ifdef FGM_USING_COCOAPODS
-@import GoogleMapsUtils;
-#else
-@import GoogleMapsUtilsObjC;
-#endif