diff --git a/packages/mlc/react-native-ai-mlc.podspec b/packages/mlc/react-native-ai-mlc.podspec
index 31e8cf64..6fb9242e 100644
--- a/packages/mlc/react-native-ai-mlc.podspec
+++ b/packages/mlc/react-native-ai-mlc.podspec
@@ -47,17 +47,28 @@ Pod::Spec.new do |s|
   
   # User target configuration to ensure static libraries are force loaded
   s.user_target_xcconfig = {
-    'OTHER_LDFLAGS' => [
+    'OTHER_LDFLAGS[sdk=iphoneos*]' => [
       '$(inherited)',
       '-ObjC',
-      "-force_load \"#{package_path}/prebuilt/ios/lib/libmodel_iphone.a\"",
-      "-force_load \"#{package_path}/prebuilt/ios/lib/libmlc_llm.a\"",
-      "-force_load \"#{package_path}/prebuilt/ios/lib/libtvm_runtime.a\"",
-      "-force_load \"#{package_path}/prebuilt/ios/lib/libtvm_ffi_static.a\"",
-      "-force_load \"#{package_path}/prebuilt/ios/lib/libsentencepiece.a\"",
-      "-force_load \"#{package_path}/prebuilt/ios/lib/libtokenizers_cpp.a\"",
-      "-force_load \"#{package_path}/prebuilt/ios/lib/libtokenizers_c.a\""
-    ].join(' ')
+      "-force_load \"#{package_path}/prebuilt/ios/lib_iphone/libmodel_iphone.a\"",
+      "-force_load \"#{package_path}/prebuilt/ios/lib_iphone/libmlc_llm.a\"",
+      "-force_load \"#{package_path}/prebuilt/ios/lib_iphone/libtvm_runtime.a\"",
+      "-force_load \"#{package_path}/prebuilt/ios/lib_iphone/libtvm_ffi_static.a\"",
+      "-force_load \"#{package_path}/prebuilt/ios/lib_iphone/libsentencepiece.a\"",
+      "-force_load \"#{package_path}/prebuilt/ios/lib_iphone/libtokenizers_cpp.a\"",
+      "-force_load \"#{package_path}/prebuilt/ios/lib_iphone/libtokenizers_c.a\""
+    ].join(' '),
+    'OTHER_LDFLAGS[sdk=iphonesimulator*]' => [
+      '$(inherited)',
+      '-ObjC',
+      "-force_load \"#{package_path}/prebuilt/ios/lib_iphonesim/libmodel_iphone.a\"",
+      "-force_load \"#{package_path}/prebuilt/ios/lib_iphonesim/libmlc_llm.a\"",
+      "-force_load \"#{package_path}/prebuilt/ios/lib_iphonesim/libtvm_runtime.a\"",
+      "-force_load \"#{package_path}/prebuilt/ios/lib_iphonesim/libtvm_ffi_static.a\"",
+      "-force_load \"#{package_path}/prebuilt/ios/lib_iphonesim/libsentencepiece.a\"",
+      "-force_load \"#{package_path}/prebuilt/ios/lib_iphonesim/libtokenizers_cpp.a\"",
+      "-force_load \"#{package_path}/prebuilt/ios/lib_iphonesim/libtokenizers_c.a\""
+    ].join(' '),
   }
   
   # Framework dependencies
diff --git a/packages/mlc/scripts/build-runtime.sh b/packages/mlc/scripts/build-runtime.sh
index fc09a1d0..b3212c81 100755
--- a/packages/mlc/scripts/build-runtime.sh
+++ b/packages/mlc/scripts/build-runtime.sh
@@ -72,7 +72,7 @@ fi
 # Get script directory
 SCRIPT_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
 PACKAGE_DIR="$(dirname "$SCRIPT_DIR")"
-BUILD_DIR="$PACKAGE_DIR/build"
+BUILD_DIR="$SCRIPT_DIR/build"
 CONFIG_FILE="$PACKAGE_DIR/mlc-package-config-$PLATFORM.json"
 OUTPUT_DIR="$PACKAGE_DIR/prebuilt/$PLATFORM"
 
@@ -246,7 +246,7 @@ if [ ! -f "$MLC_LLM_SOURCE_DIR/3rdparty/tvm/CMakeLists.txt" ] || [ ! -f "$MLC_LL
 fi
 
 # Check if mlc_llm is available
-if ! python3 -m mlc_llm --help > /dev/null 2>&1; then
+if ! python -m mlc_llm --help > /dev/null 2>&1; then
   echo -e "${RED}Error: mlc_llm not found${NC}"
   echo ""
   echo "Please install MLC:"
@@ -254,34 +254,44 @@ if ! python3 -m mlc_llm --help > /dev/null 2>&1; then
   exit 1
 fi
 
-# Check for conflicting build artifacts from other platforms
-if [ -f "$BUILD_DIR/CMakeCache.txt" ]; then
-  # Check if this is an Xcode/iOS build when building for Android
-  if [ "$PLATFORM" = "android" ] && grep -q "Xcode" "$BUILD_DIR/CMakeCache.txt" 2>/dev/null; then
-    echo -e "${YELLOW}Warning: Detected Xcode/iOS build artifacts in $BUILD_DIR${NC}"
-    echo "This can cause CMake cache conflicts for Android builds."
-    echo "Cleaning build directory..."
-    rm -rf "$BUILD_DIR"
-    echo -e "${GREEN}Build directory cleaned${NC}"
-  fi
-  # Check if this is an Android build when building for iOS
-  if [ "$PLATFORM" = "ios" ] && grep -q "Android" "$BUILD_DIR/CMakeCache.txt" 2>/dev/null; then
-    echo -e "${YELLOW}Warning: Detected Android build artifacts in $BUILD_DIR${NC}"
-    echo "This can cause CMake cache conflicts for iOS builds."
-    echo "Cleaning build directory..."
-    rm -rf "$BUILD_DIR"
-    echo -e "${GREEN}Build directory cleaned${NC}"
-  fi
-fi
-
 # Create output directory
 mkdir -p "$OUTPUT_DIR"
 
 # Run MLC package command
-echo "Building runtime..."
-python3 -m mlc_llm package \
-  --package-config "$CONFIG_FILE" \
-  --output "$OUTPUT_DIR"
+if [ "$PLATFORM" = "ios" ]; then
+  for is_simulator in false true; do
+    echo "Preparing libs (is_simulator=$is_simulator)..."
+    PREPARE_LIBS_PATH="$MLC_LLM_SOURCE_DIR/ios/prepare_libs.sh"
+    if [ -f "$PREPARE_LIBS_PATH" ]; then
+      sed -i '' "s/^is_simulator=.*/is_simulator=\"$is_simulator\"/" "$PREPARE_LIBS_PATH"
+    fi
+
+    if [ -d "$BUILD_DIR" ]; then
+      echo "Cleaning build directory $BUILD_DIR..."
+      rm -rf "$BUILD_DIR"
+    fi
+
+    echo "Building runtime (is_simulator=$is_simulator)..."
+    python3 -m mlc_llm package \
+      --package-config "$CONFIG_FILE" \
+      --output "$OUTPUT_DIR"
+
+    if [ -d "$OUTPUT_DIR/lib" ]; then
+      if [ "$is_simulator" = "true" ]; then
+        lib_suffix="iphonesim"
+      else
+        lib_suffix="iphone"
+      fi
+      rm -rf "$OUTPUT_DIR/lib_$lib_suffix"
+      mv "$OUTPUT_DIR/lib" "$OUTPUT_DIR/lib_$lib_suffix"
+    fi
+  done
+else
+  echo "Building runtime..."
+  python3 -m mlc_llm package \
+    --package-config "$CONFIG_FILE" \
+    --output "$OUTPUT_DIR"
+fi
 
 # Copy necessary headers for iOS
 if [ "$PLATFORM" = "ios" ]; then