diff --git a/config-overrides.js b/config-overrides.js
index 32654fa..1f6431a 100644
--- a/config-overrides.js
+++ b/config-overrides.js
@@ -89,7 +89,7 @@ const userscriptWebpack = (config, env) => {
 // @grant         GM.getValue
 // @grant         GM.deleteValue
 // @grant         GM.info
-// @inject-into   content
+// @grant         unsafeWindow
 // @connect       translate.googleapis.com
 // @connect       api-edge.cognitive.microsofttranslator.com
 // @connect       edge.microsoft.com
diff --git a/package.json b/package.json
index 568bdbf..cafbf4e 100644
--- a/package.json
+++ b/package.json
@@ -25,8 +25,9 @@
     "build:firefox": "rm -rf build/firefox && cp -r build/chrome build/firefox && cat ./build/firefox/manifest.firefox.json > ./build/firefox/manifest.json",
     "build:web": "rm -rf build/web && BUILD_PATH=./build/web REACT_APP_CLIENT=userscript react-app-rewired build",
     "build:userscript": "rm -rf build/userscript && mkdir build/userscript && cp build/web/kiss-translator.user.js build/userscript/kiss-translator.user.js",
+    "build:userscript-ios": "file1=build/userscript/kiss-translator.user.js file2=build/userscript/kiss-translator-ios-safari.user.js && cp $file1 $file2 && sed -i 's|// @grant         unsafeWindow|// @inject-into   content|g' $file2",
     "build:rules": "babel-node src/rules.js",
-    "build": "yarn build:chrome && yarn build:edge && yarn build:firefox && yarn build:web && yarn build:userscript && yarn build:rules",
+    "build": "yarn build:chrome && yarn build:edge && yarn build:firefox && yarn build:web && yarn build:userscript && yarn build:userscript-ios && yarn build:rules",
     "deploy:web": "wrangler pages deploy ./build/web --project-name kiss-translator",
     "test": "react-app-rewired test",
     "eject": "react-scripts eject"
@@ -37,7 +38,8 @@
       "react-app/jest"
     ],
     "globals": {
-      "GM": true
+      "GM": true,
+      "unsafeWindow": true
     }
   },
   "browserslist": {
diff --git a/src/userscript.js b/src/userscript.js
index ba5f062..14186f9 100644
--- a/src/userscript.js
+++ b/src/userscript.js
@@ -3,7 +3,11 @@ import ReactDOM from "react-dom/client";
 import Action from "./views/Action";
 import createCache from "@emotion/cache";
 import { CacheProvider } from "@emotion/react";
-import { getSettingWithDefault, getRulesWithDefault,  getFabWithDefault } from "./libs/storage";
+import {
+  getSettingWithDefault,
+  getRulesWithDefault,
+  getFabWithDefault,
+} from "./libs/storage";
 import { Translator } from "./libs/translator";
 import { trySyncAllSubRules } from "./libs/subRules";
 import { isGm } from "./libs/client";
@@ -22,16 +26,18 @@ const init = async () => {
     document.location.href.includes(process.env.REACT_APP_OPTIONSPAGE) ||
     document.location.href.includes(process.env.REACT_APP_OPTIONSPAGE2)
   ) {
-    // unsafeWindow.GM = GM;
-    // unsafeWindow.APP_NAME = process.env.REACT_APP_NAME;
-    const ping = btoa(Math.random()).slice(3, 11);
-    window.addEventListener(ping, handlePing);
-    // window.eval(`(${injectScript})("${ping}")`); // eslint-disable-line
-    const script = document.createElement("script");
-    script.textContent = `(${injectScript})("${ping}")`;
-    if (document.head) {
+    if (GM?.info?.script?.grant?.includes("unsafeWindow")) {
+      unsafeWindow.GM = GM;
+      unsafeWindow.APP_NAME = process.env.REACT_APP_NAME;
+    } else {
+      const ping = btoa(Math.random()).slice(3, 11);
+      window.addEventListener(ping, handlePing);
+      // window.eval(`(${injectScript})("${ping}")`); // eslint-disable-line
+      const script = document.createElement("script");
+      script.textContent = `(${injectScript})("${ping}")`;
       document.head.append(script);
     }
+
     return;
   }