diff --git a/.changes/fix-ios-metal-toolchain.md b/.changes/fix-ios-metal-toolchain.md
new file mode 100644
index 000000000000..ff08280304a2
--- /dev/null
+++ b/.changes/fix-ios-metal-toolchain.md
@@ -0,0 +1,6 @@
+---
+"tauri-cli": patch:bug
+"@tauri-apps/cli": patch:bug
+---
+
+Fix iOS build failure when `Metal Toolchain` is installed by using explicit `$(DEVELOPER_DIR)/Toolchains/XcodeDefault.xctoolchain` path instead of `$(TOOLCHAIN_DIR)` for Swift library search paths.
\ No newline at end of file
diff --git a/crates/tauri-cli/templates/mobile/ios/project.yml b/crates/tauri-cli/templates/mobile/ios/project.yml
index 1994d5e5aff7..c23c1949e33d 100644
--- a/crates/tauri-cli/templates/mobile/ios/project.yml
+++ b/crates/tauri-cli/templates/mobile/ios/project.yml
@@ -78,8 +78,8 @@ targets:
         ENABLE_BITCODE: false
         ARCHS: [{{join ios-valid-archs}}]
         VALID_ARCHS: {{~#each ios-valid-archs}} {{this}} {{/each}}
-        LIBRARY_SEARCH_PATHS[arch=x86_64]: $(inherited) $(PROJECT_DIR)/Externals/x86_64/$(CONFIGURATION) $(SDKROOT)/usr/lib/swift $(TOOLCHAIN_DIR)/usr/lib/swift/$(PLATFORM_NAME) $(TOOLCHAIN_DIR)/usr/lib/swift-5.0/$(PLATFORM_NAME)
-        LIBRARY_SEARCH_PATHS[arch=arm64]: $(inherited) $(PROJECT_DIR)/Externals/arm64/$(CONFIGURATION) $(SDKROOT)/usr/lib/swift $(TOOLCHAIN_DIR)/usr/lib/swift/$(PLATFORM_NAME) $(TOOLCHAIN_DIR)/usr/lib/swift-5.0/$(PLATFORM_NAME)
+        LIBRARY_SEARCH_PATHS[arch=x86_64]: $(inherited) $(PROJECT_DIR)/Externals/x86_64/$(CONFIGURATION) $(SDKROOT)/usr/lib/swift $(DEVELOPER_DIR)/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/$(PLATFORM_NAME) $(DEVELOPER_DIR)/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift-5.0/$(PLATFORM_NAME)
+        LIBRARY_SEARCH_PATHS[arch=arm64]: $(inherited) $(PROJECT_DIR)/Externals/arm64/$(CONFIGURATION) $(SDKROOT)/usr/lib/swift $(DEVELOPER_DIR)/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/$(PLATFORM_NAME) $(DEVELOPER_DIR)/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift-5.0/$(PLATFORM_NAME)
         ALWAYS_EMBED_SWIFT_STANDARD_LIBRARIES: true
         EXCLUDED_ARCHS[sdk=iphoneos*]: x86_64
       groups: [app]
diff --git a/crates/tauri-cli/tests/fixtures/pbxproj/project.pbxproj b/crates/tauri-cli/tests/fixtures/pbxproj/project.pbxproj
index a3c74da6b00d..2604ffdc40a5 100644
--- a/crates/tauri-cli/tests/fixtures/pbxproj/project.pbxproj
+++ b/crates/tauri-cli/tests/fixtures/pbxproj/project.pbxproj
@@ -398,8 +398,8 @@
 					"$(inherited)",
 					"@executable_path/Frameworks",
 				);
-				"LIBRARY_SEARCH_PATHS[arch=arm64]" = "$(inherited) $(PROJECT_DIR)/Externals/arm64/$(CONFIGURATION) $(SDKROOT)/usr/lib/swift $(TOOLCHAIN_DIR)/usr/lib/swift/$(PLATFORM_NAME) $(TOOLCHAIN_DIR)/usr/lib/swift-5.0/$(PLATFORM_NAME)";
-				"LIBRARY_SEARCH_PATHS[arch=x86_64]" = "$(inherited) $(PROJECT_DIR)/Externals/x86_64/$(CONFIGURATION) $(SDKROOT)/usr/lib/swift $(TOOLCHAIN_DIR)/usr/lib/swift/$(PLATFORM_NAME) $(TOOLCHAIN_DIR)/usr/lib/swift-5.0/$(PLATFORM_NAME)";
+				"LIBRARY_SEARCH_PATHS[arch=arm64]" = "$(inherited) $(PROJECT_DIR)/Externals/arm64/$(CONFIGURATION) $(SDKROOT)/usr/lib/swift $(DEVELOPER_DIR)/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/$(PLATFORM_NAME) $(DEVELOPER_DIR)/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift-5.0/$(PLATFORM_NAME)";
+				"LIBRARY_SEARCH_PATHS[arch=x86_64]" = "$(inherited) $(PROJECT_DIR)/Externals/x86_64/$(CONFIGURATION) $(SDKROOT)/usr/lib/swift $(DEVELOPER_DIR)/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/$(PLATFORM_NAME) $(DEVELOPER_DIR)/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift-5.0/$(PLATFORM_NAME)";
 				PRODUCT_BUNDLE_IDENTIFIER = com.tauri.api;
 				PRODUCT_NAME = "Tauri API";
 				SDKROOT = iphoneos;
@@ -430,8 +430,8 @@
 					"$(inherited)",
 					"@executable_path/Frameworks",
 				);
-				"LIBRARY_SEARCH_PATHS[arch=arm64]" = "$(inherited) $(PROJECT_DIR)/Externals/arm64/$(CONFIGURATION) $(SDKROOT)/usr/lib/swift $(TOOLCHAIN_DIR)/usr/lib/swift/$(PLATFORM_NAME) $(TOOLCHAIN_DIR)/usr/lib/swift-5.0/$(PLATFORM_NAME)";
-				"LIBRARY_SEARCH_PATHS[arch=x86_64]" = "$(inherited) $(PROJECT_DIR)/Externals/x86_64/$(CONFIGURATION) $(SDKROOT)/usr/lib/swift $(TOOLCHAIN_DIR)/usr/lib/swift/$(PLATFORM_NAME) $(TOOLCHAIN_DIR)/usr/lib/swift-5.0/$(PLATFORM_NAME)";
+				"LIBRARY_SEARCH_PATHS[arch=arm64]" = "$(inherited) $(PROJECT_DIR)/Externals/arm64/$(CONFIGURATION) $(SDKROOT)/usr/lib/swift $(DEVELOPER_DIR)/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/$(PLATFORM_NAME) $(DEVELOPER_DIR)/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift-5.0/$(PLATFORM_NAME)";
+				"LIBRARY_SEARCH_PATHS[arch=x86_64]" = "$(inherited) $(PROJECT_DIR)/Externals/x86_64/$(CONFIGURATION) $(SDKROOT)/usr/lib/swift $(DEVELOPER_DIR)/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/$(PLATFORM_NAME) $(DEVELOPER_DIR)/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift-5.0/$(PLATFORM_NAME)";
 				PRODUCT_BUNDLE_IDENTIFIER = com.tauri.api;
 				PRODUCT_NAME = "Tauri API";
 				SDKROOT = iphoneos;
diff --git a/crates/tauri-cli/tests/fixtures/pbxproj/snapshots/tauri_cli__helpers__pbxproj__tests__project-modified.pbxproj.snap b/crates/tauri-cli/tests/fixtures/pbxproj/snapshots/tauri_cli__helpers__pbxproj__tests__project-modified.pbxproj.snap
index a3dc6bf5ed43..97ba4c6235c9 100644
--- a/crates/tauri-cli/tests/fixtures/pbxproj/snapshots/tauri_cli__helpers__pbxproj__tests__project-modified.pbxproj.snap
+++ b/crates/tauri-cli/tests/fixtures/pbxproj/snapshots/tauri_cli__helpers__pbxproj__tests__project-modified.pbxproj.snap
@@ -402,8 +402,8 @@ expression: pbxproj.serialize()
 					"$(inherited)",
 					"@executable_path/Frameworks",
 				);
-				"LIBRARY_SEARCH_PATHS[arch=arm64]" = "$(inherited) $(PROJECT_DIR)/Externals/arm64/$(CONFIGURATION) $(SDKROOT)/usr/lib/swift $(TOOLCHAIN_DIR)/usr/lib/swift/$(PLATFORM_NAME) $(TOOLCHAIN_DIR)/usr/lib/swift-5.0/$(PLATFORM_NAME)";
-				"LIBRARY_SEARCH_PATHS[arch=x86_64]" = "$(inherited) $(PROJECT_DIR)/Externals/x86_64/$(CONFIGURATION) $(SDKROOT)/usr/lib/swift $(TOOLCHAIN_DIR)/usr/lib/swift/$(PLATFORM_NAME) $(TOOLCHAIN_DIR)/usr/lib/swift-5.0/$(PLATFORM_NAME)";
+				"LIBRARY_SEARCH_PATHS[arch=arm64]" = "$(inherited) $(PROJECT_DIR)/Externals/arm64/$(CONFIGURATION) $(SDKROOT)/usr/lib/swift $(DEVELOPER_DIR)/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/$(PLATFORM_NAME) $(DEVELOPER_DIR)/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift-5.0/$(PLATFORM_NAME)";
+				"LIBRARY_SEARCH_PATHS[arch=x86_64]" = "$(inherited) $(PROJECT_DIR)/Externals/x86_64/$(CONFIGURATION) $(SDKROOT)/usr/lib/swift $(DEVELOPER_DIR)/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/$(PLATFORM_NAME) $(DEVELOPER_DIR)/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift-5.0/$(PLATFORM_NAME)";
 				PRODUCT_BUNDLE_IDENTIFIER = com.tauri.api;
 				PRODUCT_NAME = "Tauri API";
 				SDKROOT = iphoneos;
@@ -434,8 +434,8 @@ expression: pbxproj.serialize()
 					"$(inherited)",
 					"@executable_path/Frameworks",
 				);
-				"LIBRARY_SEARCH_PATHS[arch=arm64]" = "$(inherited) $(PROJECT_DIR)/Externals/arm64/$(CONFIGURATION) $(SDKROOT)/usr/lib/swift $(TOOLCHAIN_DIR)/usr/lib/swift/$(PLATFORM_NAME) $(TOOLCHAIN_DIR)/usr/lib/swift-5.0/$(PLATFORM_NAME)";
-				"LIBRARY_SEARCH_PATHS[arch=x86_64]" = "$(inherited) $(PROJECT_DIR)/Externals/x86_64/$(CONFIGURATION) $(SDKROOT)/usr/lib/swift $(TOOLCHAIN_DIR)/usr/lib/swift/$(PLATFORM_NAME) $(TOOLCHAIN_DIR)/usr/lib/swift-5.0/$(PLATFORM_NAME)";
+				"LIBRARY_SEARCH_PATHS[arch=arm64]" = "$(inherited) $(PROJECT_DIR)/Externals/arm64/$(CONFIGURATION) $(SDKROOT)/usr/lib/swift $(DEVELOPER_DIR)/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/$(PLATFORM_NAME) $(DEVELOPER_DIR)/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift-5.0/$(PLATFORM_NAME)";
+				"LIBRARY_SEARCH_PATHS[arch=x86_64]" = "$(inherited) $(PROJECT_DIR)/Externals/x86_64/$(CONFIGURATION) $(SDKROOT)/usr/lib/swift $(DEVELOPER_DIR)/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/$(PLATFORM_NAME) $(DEVELOPER_DIR)/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift-5.0/$(PLATFORM_NAME)";
 				PRODUCT_BUNDLE_IDENTIFIER = com.tauri.api;
 				PRODUCT_NAME = "Tauri Test";
 				SDKROOT = iphoneos;
diff --git a/crates/tauri-cli/tests/fixtures/pbxproj/snapshots/tauri_cli__helpers__pbxproj__tests__project.pbxproj.snap b/crates/tauri-cli/tests/fixtures/pbxproj/snapshots/tauri_cli__helpers__pbxproj__tests__project.pbxproj.snap
index d84a8c0e71ba..24c4db8b9f99 100644
--- a/crates/tauri-cli/tests/fixtures/pbxproj/snapshots/tauri_cli__helpers__pbxproj__tests__project.pbxproj.snap
+++ b/crates/tauri-cli/tests/fixtures/pbxproj/snapshots/tauri_cli__helpers__pbxproj__tests__project.pbxproj.snap
@@ -708,13 +708,13 @@ Pbxproj {
                     identation: "\t\t\t\t",
                     line_number: 400,
                     key: "\"LIBRARY_SEARCH_PATHS[arch=arm64]\"",
-                    value: "\"$(inherited) $(PROJECT_DIR)/Externals/arm64/$(CONFIGURATION) $(SDKROOT)/usr/lib/swift $(TOOLCHAIN_DIR)/usr/lib/swift/$(PLATFORM_NAME) $(TOOLCHAIN_DIR)/usr/lib/swift-5.0/$(PLATFORM_NAME)\"",
+                    value: "\"$(inherited) $(PROJECT_DIR)/Externals/arm64/$(CONFIGURATION) $(SDKROOT)/usr/lib/swift $(DEVELOPER_DIR)/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/$(PLATFORM_NAME) $(DEVELOPER_DIR)/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift-5.0/$(PLATFORM_NAME)\"",
                 },
                 BuildSettings {
                     identation: "\t\t\t\t",
                     line_number: 401,
                     key: "\"LIBRARY_SEARCH_PATHS[arch=x86_64]\"",
-                    value: "\"$(inherited) $(PROJECT_DIR)/Externals/x86_64/$(CONFIGURATION) $(SDKROOT)/usr/lib/swift $(TOOLCHAIN_DIR)/usr/lib/swift/$(PLATFORM_NAME) $(TOOLCHAIN_DIR)/usr/lib/swift-5.0/$(PLATFORM_NAME)\"",
+                    value: "\"$(inherited) $(PROJECT_DIR)/Externals/x86_64/$(CONFIGURATION) $(SDKROOT)/usr/lib/swift $(DEVELOPER_DIR)/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/$(PLATFORM_NAME) $(DEVELOPER_DIR)/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift-5.0/$(PLATFORM_NAME)\"",
                 },
                 BuildSettings {
                     identation: "\t\t\t\t",
@@ -820,13 +820,13 @@ Pbxproj {
                     identation: "\t\t\t\t",
                     line_number: 432,
                     key: "\"LIBRARY_SEARCH_PATHS[arch=arm64]\"",
-                    value: "\"$(inherited) $(PROJECT_DIR)/Externals/arm64/$(CONFIGURATION) $(SDKROOT)/usr/lib/swift $(TOOLCHAIN_DIR)/usr/lib/swift/$(PLATFORM_NAME) $(TOOLCHAIN_DIR)/usr/lib/swift-5.0/$(PLATFORM_NAME)\"",
+                    value: "\"$(inherited) $(PROJECT_DIR)/Externals/arm64/$(CONFIGURATION) $(SDKROOT)/usr/lib/swift $(DEVELOPER_DIR)/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/$(PLATFORM_NAME) $(DEVELOPER_DIR)/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift-5.0/$(PLATFORM_NAME)\"",
                 },
                 BuildSettings {
                     identation: "\t\t\t\t",
                     line_number: 433,
                     key: "\"LIBRARY_SEARCH_PATHS[arch=x86_64]\"",
-                    value: "\"$(inherited) $(PROJECT_DIR)/Externals/x86_64/$(CONFIGURATION) $(SDKROOT)/usr/lib/swift $(TOOLCHAIN_DIR)/usr/lib/swift/$(PLATFORM_NAME) $(TOOLCHAIN_DIR)/usr/lib/swift-5.0/$(PLATFORM_NAME)\"",
+                    value: "\"$(inherited) $(PROJECT_DIR)/Externals/x86_64/$(CONFIGURATION) $(SDKROOT)/usr/lib/swift $(DEVELOPER_DIR)/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/$(PLATFORM_NAME) $(DEVELOPER_DIR)/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift-5.0/$(PLATFORM_NAME)\"",
                 },
                 BuildSettings {
                     identation: "\t\t\t\t",