diff --git a/build/toolchain/mac/BUILD.gn b/build/toolchain/mac/BUILD.gn
index 9138af109b8..dff4b054e85 100644
--- a/build/toolchain/mac/BUILD.gn
+++ b/build/toolchain/mac/BUILD.gn
@@ -66,7 +66,7 @@ template("mac_toolchain") {
       sysroot_flags = "-isysroot $sysroot $version_flags"
     }
 
-    strip = !is_debug
+    strip = !is_debug && !use_ios_simulator
 
     toolchain_flags = ""
     if (invoker.toolchain_cpu == "i386") {
diff --git a/sky/build/PackagerInvoke b/sky/build/PackagerInvoke
index d37237b6a40..947730ac037 100755
--- a/sky/build/PackagerInvoke
+++ b/sky/build/PackagerInvoke
@@ -50,6 +50,14 @@ PackageProject() {
   # Remove old build artifacts
   RunCommand rm -f ${derived_dir}/app.flx
 
+  local src_dir=${SOURCE_ROOT}/FlutterResources
+  AssertExists $src_dir
+
+  local precompilation_flag=""
+  if [ $CURRENT_ARCH != "x86_64" ]; then
+    precompilation_flag="--precompiled"
+  fi
+
   # Generate the new FLX file. The pub command must be run from the directory
   # containing the pubspec
   RunCommand pushd ${project_path}
@@ -59,7 +67,8 @@ PackageProject() {
       --main ${dart_main}                                                      \
       --output-file ${derived_dir}/app.flx                                     \
       --package-root ${package_root}                                           \
-      --precompiled
+      --compiler ${src_dir}/ScriptSnapshotter                                  \
+      ${precompilation_flag}                                                   \
 
   if [[ $? -ne 0 ]]; then
     EchoError "Failed to package $1 ..."
diff --git a/sky/build/SnapshotterInvoke b/sky/build/SnapshotterInvoke
index caa3b9e6e00..e429985227c 100755
--- a/sky/build/SnapshotterInvoke
+++ b/sky/build/SnapshotterInvoke
@@ -59,6 +59,13 @@ GenerateBinaryInclude() {
 }
 
 SnapshotProject() {
+  if [ $CURRENT_ARCH == "x86_64" ]; then
+    echo "Script snapshots are used on the simulator as the fully JIT enabled"
+    echo "Dart VM is available. There is no need to incur the cost of"
+    echo "precompilation. The packager has already done the heavy lifting."
+    return 0
+  fi
+
   # Check that the caller has provided a project path
   if [[ -z "$1" ]]; then
     EchoError "The path to the dart project must be specified"
diff --git a/sky/build/sdk_xcode_harness/FlutterApplication.xcodeproj/project.pbxproj b/sky/build/sdk_xcode_harness/FlutterApplication.xcodeproj/project.pbxproj
index 55d0d78b28d..4151190fc1f 100644
--- a/sky/build/sdk_xcode_harness/FlutterApplication.xcodeproj/project.pbxproj
+++ b/sky/build/sdk_xcode_harness/FlutterApplication.xcodeproj/project.pbxproj
@@ -13,10 +13,11 @@
 		9E07CFB51BE82D2600BCD8DE /* FlutterApplication.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 9E07CF861BE7F4D200BCD8DE /* FlutterApplication.framework */; };
 		9E07CFB61BE82D2600BCD8DE /* FlutterApplication.framework in Embed Frameworks */ = {isa = PBXBuildFile; fileRef = 9E07CF861BE7F4D200BCD8DE /* FlutterApplication.framework */; settings = {ATTRIBUTES = (CodeSignOnCopy, RemoveHeadersOnCopy, ); }; };
 		9E07CFBA1BE82DFF00BCD8DE /* main.m in Sources */ = {isa = PBXBuildFile; fileRef = 9E07CF9D1BE8280A00BCD8DE /* main.m */; };
-		9E07CFE81BEAA35200BCD8DE /* InstructionsSnapshot.S in Sources */ = {isa = PBXBuildFile; fileRef = 9E07CFE51BEAA35200BCD8DE /* InstructionsSnapshot.S */; };
-		9E07CFE91BEAA35200BCD8DE /* kDartIsolateSnapshotBuffer.c in Sources */ = {isa = PBXBuildFile; fileRef = 9E07CFE61BEAA35200BCD8DE /* kDartIsolateSnapshotBuffer.c */; };
-		9E07CFEA1BEAA35200BCD8DE /* kDartVmIsolateSnapshotBuffer.c in Sources */ = {isa = PBXBuildFile; fileRef = 9E07CFE71BEAA35200BCD8DE /* kDartVmIsolateSnapshotBuffer.c */; };
 		9E07CFF41BEAB58200BCD8DE /* app.flx in Resources */ = {isa = PBXBuildFile; fileRef = 9E07CFF31BEAB58200BCD8DE /* app.flx */; };
+		9E0FB06C1C1A3F5600DDAEFA /* FlutterApplication.c in Sources */ = {isa = PBXBuildFile; fileRef = 9E0FB0681C1A3F5600DDAEFA /* FlutterApplication.c */; };
+		9E0FB06D1C1A3F5600DDAEFA /* InstructionsSnapshotSource.S in Sources */ = {isa = PBXBuildFile; fileRef = 9E0FB0691C1A3F5600DDAEFA /* InstructionsSnapshotSource.S */; };
+		9E0FB06E1C1A3F5600DDAEFA /* kDartIsolateSnapshotBufferSource.c in Sources */ = {isa = PBXBuildFile; fileRef = 9E0FB06A1C1A3F5600DDAEFA /* kDartIsolateSnapshotBufferSource.c */; };
+		9E0FB06F1C1A3F5600DDAEFA /* kDartVmIsolateSnapshotBufferSource.c in Sources */ = {isa = PBXBuildFile; fileRef = 9E0FB06B1C1A3F5600DDAEFA /* kDartVmIsolateSnapshotBufferSource.c */; };
 		9E29675A1C03C1D200546454 /* FlutterRunner in Resources */ = {isa = PBXBuildFile; fileRef = 9E2967581C03C18700546454 /* FlutterRunner */; };
 		9E29675B1C03C1D200546454 /* icudtl.dat in Resources */ = {isa = PBXBuildFile; fileRef = 9E2967591C03C18700546454 /* icudtl.dat */; };
 /* End PBXBuildFile section */
@@ -68,6 +69,10 @@
 		9E07CFE61BEAA35200BCD8DE /* kDartIsolateSnapshotBuffer.c */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.c; name = kDartIsolateSnapshotBuffer.c; path = Generated/kDartIsolateSnapshotBuffer.c; sourceTree = "<group>"; };
 		9E07CFE71BEAA35200BCD8DE /* kDartVmIsolateSnapshotBuffer.c */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.c; name = kDartVmIsolateSnapshotBuffer.c; path = Generated/kDartVmIsolateSnapshotBuffer.c; sourceTree = "<group>"; };
 		9E07CFF31BEAB58200BCD8DE /* app.flx */ = {isa = PBXFileReference; lastKnownFileType = file; name = app.flx; path = Generated/app.flx; sourceTree = "<group>"; };
+		9E0FB0681C1A3F5600DDAEFA /* FlutterApplication.c */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.c; path = FlutterApplication.c; sourceTree = "<group>"; };
+		9E0FB0691C1A3F5600DDAEFA /* InstructionsSnapshotSource.S */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.asm; path = InstructionsSnapshotSource.S; sourceTree = "<group>"; };
+		9E0FB06A1C1A3F5600DDAEFA /* kDartIsolateSnapshotBufferSource.c */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.c; path = kDartIsolateSnapshotBufferSource.c; sourceTree = "<group>"; };
+		9E0FB06B1C1A3F5600DDAEFA /* kDartVmIsolateSnapshotBufferSource.c */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.c; path = kDartVmIsolateSnapshotBufferSource.c; sourceTree = "<group>"; };
 		9E2967531C03C17300546454 /* EmbedderEntryPoints */ = {isa = PBXFileReference; lastKnownFileType = text; name = EmbedderEntryPoints; path = FlutterResources/EmbedderEntryPoints; sourceTree = SOURCE_ROOT; };
 		9E2967541C03C17300546454 /* PackagerInvoke */ = {isa = PBXFileReference; lastKnownFileType = text.script.sh; name = PackagerInvoke; path = FlutterResources/PackagerInvoke; sourceTree = SOURCE_ROOT; };
 		9E2967551C03C17300546454 /* Runner.xcconfig */ = {isa = PBXFileReference; lastKnownFileType = text.xcconfig; name = Runner.xcconfig; path = FlutterResources/Runner.xcconfig; sourceTree = SOURCE_ROOT; };
@@ -120,6 +125,10 @@
 			children = (
 				9E07CFD61BE997D800BCD8DE /* Generated */,
 				9E07CF891BE7F4D200BCD8DE /* FlutterApplication.h */,
+				9E0FB0681C1A3F5600DDAEFA /* FlutterApplication.c */,
+				9E0FB0691C1A3F5600DDAEFA /* InstructionsSnapshotSource.S */,
+				9E0FB06A1C1A3F5600DDAEFA /* kDartIsolateSnapshotBufferSource.c */,
+				9E0FB06B1C1A3F5600DDAEFA /* kDartVmIsolateSnapshotBufferSource.c */,
 				9E07CF8B1BE7F4D200BCD8DE /* Info.plist */,
 			);
 			path = FlutterApplication;
@@ -189,7 +198,7 @@
 			buildConfigurationList = 9E07CF8E1BE7F4D200BCD8DE /* Build configuration list for PBXNativeTarget "FlutterApplication" */;
 			buildPhases = (
 				9EBB2F351BF675C200177634 /* Ensure `pub get` */,
-				9E07CFF21BEAB2E800BCD8DE /* Run FLX Packager */,
+				9E07CFF21BEAB2E800BCD8DE /* Run FLX Packager + Optional Script Snapshotter */,
 				9E07CFCD1BE98FCD00BCD8DE /* Generate Precompiled Snapshot */,
 				9E07CF811BE7F4D200BCD8DE /* Sources */,
 				9E07CF821BE7F4D200BCD8DE /* Frameworks */,
@@ -304,7 +313,7 @@
 			shellScript = "${SOURCE_ROOT}/FlutterResources/SnapshotterInvoke ${FLUTTER_APPLICATION_PATH}";
 			showEnvVarsInLog = 0;
 		};
-		9E07CFF21BEAB2E800BCD8DE /* Run FLX Packager */ = {
+		9E07CFF21BEAB2E800BCD8DE /* Run FLX Packager + Optional Script Snapshotter */ = {
 			isa = PBXShellScriptBuildPhase;
 			buildActionMask = 2147483647;
 			files = (
@@ -313,7 +322,7 @@
 				"$(FLUTTER_APPLICATION_PATH)/flutter.yaml",
 				"$(SRCROOT)/FlutterResources/PackagerInvoke",
 			);
-			name = "Run FLX Packager";
+			name = "Run FLX Packager + Optional Script Snapshotter";
 			outputPaths = (
 				"${SRCROOT}/FlutterApplication/Generated/app.flx",
 			);
@@ -344,9 +353,10 @@
 			isa = PBXSourcesBuildPhase;
 			buildActionMask = 2147483647;
 			files = (
-				9E07CFEA1BEAA35200BCD8DE /* kDartVmIsolateSnapshotBuffer.c in Sources */,
-				9E07CFE91BEAA35200BCD8DE /* kDartIsolateSnapshotBuffer.c in Sources */,
-				9E07CFE81BEAA35200BCD8DE /* InstructionsSnapshot.S in Sources */,
+				9E0FB06D1C1A3F5600DDAEFA /* InstructionsSnapshotSource.S in Sources */,
+				9E0FB06E1C1A3F5600DDAEFA /* kDartIsolateSnapshotBufferSource.c in Sources */,
+				9E0FB06F1C1A3F5600DDAEFA /* kDartVmIsolateSnapshotBufferSource.c in Sources */,
+				9E0FB06C1C1A3F5600DDAEFA /* FlutterApplication.c in Sources */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};
@@ -421,6 +431,7 @@
 				GCC_WARN_UNUSED_VARIABLE = YES;
 				IPHONEOS_DEPLOYMENT_TARGET = 8.0;
 				MTL_ENABLE_DEBUG_INFO = YES;
+				ONLY_ACTIVE_ARCH = YES;
 				SDKROOT = iphoneos;
 				TARGETED_DEVICE_FAMILY = "1,2";
 				VALID_ARCHS = "$(FLUTTER_TARGET_ARCH)";
@@ -464,6 +475,7 @@
 				GCC_WARN_UNUSED_VARIABLE = YES;
 				IPHONEOS_DEPLOYMENT_TARGET = 8.0;
 				MTL_ENABLE_DEBUG_INFO = NO;
+				ONLY_ACTIVE_ARCH = YES;
 				SDKROOT = iphoneos;
 				TARGETED_DEVICE_FAMILY = "1,2";
 				VALIDATE_PRODUCT = YES;
diff --git a/sky/build/sdk_xcode_harness/FlutterApplication/FlutterApplication.c b/sky/build/sdk_xcode_harness/FlutterApplication/FlutterApplication.c
new file mode 100644
index 00000000000..86d6254e78c
--- /dev/null
+++ b/sky/build/sdk_xcode_harness/FlutterApplication/FlutterApplication.c
@@ -0,0 +1,5 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+const char IntentionallyEmpty = '\0';
diff --git a/sky/build/sdk_xcode_harness/FlutterApplication/InstructionsSnapshotSource.S b/sky/build/sdk_xcode_harness/FlutterApplication/InstructionsSnapshotSource.S
new file mode 100644
index 00000000000..3490b95eb17
--- /dev/null
+++ b/sky/build/sdk_xcode_harness/FlutterApplication/InstructionsSnapshotSource.S
@@ -0,0 +1,4 @@
+
+#if __arm__ || __aarch64__
+#include "Generated/InstructionsSnapshot.S"
+#endif
diff --git a/sky/build/sdk_xcode_harness/FlutterApplication/kDartIsolateSnapshotBufferSource.c b/sky/build/sdk_xcode_harness/FlutterApplication/kDartIsolateSnapshotBufferSource.c
new file mode 100644
index 00000000000..168cae5b203
--- /dev/null
+++ b/sky/build/sdk_xcode_harness/FlutterApplication/kDartIsolateSnapshotBufferSource.c
@@ -0,0 +1,7 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#if __arm__ || __aarch64__
+#include "Generated/kDartIsolateSnapshotBuffer.c"
+#endif
diff --git a/sky/build/sdk_xcode_harness/FlutterApplication/kDartVmIsolateSnapshotBufferSource.c b/sky/build/sdk_xcode_harness/FlutterApplication/kDartVmIsolateSnapshotBufferSource.c
new file mode 100644
index 00000000000..e2c75c5cc0e
--- /dev/null
+++ b/sky/build/sdk_xcode_harness/FlutterApplication/kDartVmIsolateSnapshotBufferSource.c
@@ -0,0 +1,7 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#if __arm__ || __aarch64__
+#include "Generated/kDartVmIsolateSnapshotBuffer.c"
+#endif
diff --git a/sky/build/sky_precompilation_sdk.gni b/sky/build/sky_precompilation_sdk.gni
index 1cf15545104..1a3c5525b85 100644
--- a/sky/build/sky_precompilation_sdk.gni
+++ b/sky/build/sky_precompilation_sdk.gni
@@ -26,6 +26,20 @@ template("sky_precompilation_sdk") {
     deps = [  snapshotter_target  ]
   }
 
+  script_snapshotter_copy_gen_target_name =
+      target_name + "_copy_script_snapshotter"
+  copy(script_snapshotter_copy_gen_target_name) {
+    script_snapshotter_target = "//sky/tools/sky_snapshot($dart_host_toolchain)"
+    script_snapshotter_directory =
+        get_label_info(script_snapshotter_target, "root_out_dir")
+    script_snapshotter_name = get_label_info(script_snapshotter_target, "name")
+
+    sources = [  "$script_snapshotter_directory/$script_snapshotter_name"  ]
+    outputs = [  "$sdk_dir/$resources_dir/ScriptSnapshotter"  ]
+
+    deps = [  script_snapshotter_target  ]
+  }
+
   copy("embedder_entry_points") {
     sources = [ "//sky/engine/bindings/dart_vm_entry_points.txt" ]
     outputs = [  "$sdk_dir/$resources_dir/EmbedderEntryPoints"  ]
@@ -85,6 +99,7 @@ template("sky_precompilation_sdk") {
   group(target_name) {
     deps = [
       ":$snapshotter_copy_gen_target_name",
+      ":$script_snapshotter_copy_gen_target_name",
       ":embedder_entry_points",
       ":$copy_runner_gen_target_name",
       ":$copy_data_gen_target_name",
diff --git a/sky/engine/bindings/BUILD.gn b/sky/engine/bindings/BUILD.gn
index 70de601eda7..99b51958d05 100644
--- a/sky/engine/bindings/BUILD.gn
+++ b/sky/engine/bindings/BUILD.gn
@@ -43,10 +43,11 @@ source_set("bindings") {
     ":generated_bindings",
   ]
 
-  # On iOS, precompiled snapshots contain the instruction buffer. Generation
-  # of the same requires all application specific script code to be specified
-  # up front. In such cases, there can be no updater or generic snapshotter
-  if (!is_ios) {
+  # On iOS (device), precompiled snapshots contain the instruction buffer.
+  # Generation of the same requires all application specific script code to be
+  # specified up front. In such cases, there can be no updater or generic
+  # snapshotter.
+  if (!is_ios || use_ios_simulator) {
     deps += [
       ":snapshot_cc",
     ]
diff --git a/sky/shell/platform/ios/sky_surface.mm b/sky/shell/platform/ios/sky_surface.mm
index 6d64e9cf5f9..7845ed97040 100644
--- a/sky/shell/platform/ios/sky_surface.mm
+++ b/sky/shell/platform/ios/sky_surface.mm
@@ -199,7 +199,12 @@ static std::string TracesBasePath() {
   _sky_engine->SetServices(services.Pass());
 
   mojo::String bundle_path([self flxBundlePath]);
+
+#if TARGET_IPHONE_SIMULATOR
+  _sky_engine->RunFromBundle(bundle_path);
+#else
   _sky_engine->RunFromPrecompiledSnapshot(bundle_path);
+#endif
 }
 
 - (void)notifySurfaceDestruction {