diff --git a/app/components/auth.tsx b/app/components/auth.tsx
index de0df4542..1ca83dcd3 100644
--- a/app/components/auth.tsx
+++ b/app/components/auth.tsx
@@ -7,6 +7,8 @@ import { useAccessStore } from "../store";
 import Locale from "../locales";
 
 import BotIcon from "../icons/bot.svg";
+import { useEffect } from "react";
+import { getClientConfig } from "../config/client";
 
 export function AuthPage() {
   const navigate = useNavigate();
@@ -14,6 +16,13 @@ export function AuthPage() {
 
   const goHome = () => navigate(Path.Home);
 
+  useEffect(() => {
+    if (getClientConfig()?.isApp) {
+      navigate(Path.Settings);
+    }
+    // eslint-disable-next-line react-hooks/exhaustive-deps
+  }, []);
+
   return (
     <div className={styles["auth-page"]}>
       <div className={`no-dark ${styles["auth-logo"]}`}>
diff --git a/app/components/chat.tsx b/app/components/chat.tsx
index f661d0a47..656208585 100644
--- a/app/components/chat.tsx
+++ b/app/components/chat.tsx
@@ -1123,9 +1123,9 @@ function _Chat() {
                               10,
                             );
                             chatStore.updateCurrentSession((session) => {
-                              const m = session.messages.find(
-                                (m) => m.id === message.id,
-                              );
+                              const m = session.mask.context
+                                .concat(session.messages)
+                                .find((m) => m.id === message.id);
                               if (m) {
                                 m.content = newMessage;
                               }
diff --git a/app/components/exporter.tsx b/app/components/exporter.tsx
index ab6fad29e..604b8823d 100644
--- a/app/components/exporter.tsx
+++ b/app/components/exporter.tsx
@@ -127,7 +127,7 @@ export function MessageExporter() {
   ];
   const { currentStep, setCurrentStepIndex, currentStepIndex } =
     useSteps(steps);
-  const formats = ["text", "image"] as const;
+  const formats = ["text", "image", "json"] as const;
   type ExportFormat = (typeof formats)[number];
 
   const [exportConfig, setExportConfig] = useState({
@@ -157,7 +157,21 @@ export function MessageExporter() {
     session.mask.context,
     selection,
   ]);
-
+  function preview() {
+    if (exportConfig.format === "text") {
+      return (
+        <MarkdownPreviewer messages={selectedMessages} topic={session.topic} />
+      );
+    } else if (exportConfig.format === "json") {
+      return (
+        <JsonPreviewer messages={selectedMessages} topic={session.topic} />
+      );
+    } else {
+      return (
+        <ImagePreviewer messages={selectedMessages} topic={session.topic} />
+      );
+    }
+  }
   return (
     <>
       <Steps
@@ -212,16 +226,7 @@ export function MessageExporter() {
         />
       </div>
       {currentStep.value === "preview" && (
-        <div className={styles["message-exporter-body"]}>
-          {exportConfig.format === "text" ? (
-            <MarkdownPreviewer
-              messages={selectedMessages}
-              topic={session.topic}
-            />
-          ) : (
-            <ImagePreviewer messages={selectedMessages} topic={session.topic} />
-          )}
-        </div>
+        <div className={styles["message-exporter-body"]}>{preview()}</div>
       )}
     </>
   );
@@ -545,12 +550,44 @@ export function MarkdownPreviewer(props: {
   const download = () => {
     downloadAs(mdText, `${props.topic}.md`);
   };
-
   return (
     <>
       <PreviewActions
         copy={copy}
         download={download}
+        showCopy={true}
+        messages={props.messages}
+      />
+      <div className="markdown-body">
+        <pre className={styles["export-content"]}>{mdText}</pre>
+      </div>
+    </>
+  );
+}
+
+export function JsonPreviewer(props: {
+  messages: ChatMessage[];
+  topic: string;
+}) {
+  const msgs = props.messages.map((m) => ({
+    role: m.role,
+    content: m.content,
+  }));
+  const mdText = "\n" + JSON.stringify(msgs, null, 2) + "\n";
+
+  const copy = () => {
+    copyToClipboard(JSON.stringify(msgs, null, 2));
+  };
+  const download = () => {
+    downloadAs(JSON.stringify(msgs, null, 2), `${props.topic}.json`);
+  };
+
+  return (
+    <>
+      <PreviewActions
+        copy={copy}
+        download={download}
+        showCopy={true}
         messages={props.messages}
       />
       <div className="markdown-body">
diff --git a/app/locales/cn.ts b/app/locales/cn.ts
index 3929e09e7..19e804b3a 100644
--- a/app/locales/cn.ts
+++ b/app/locales/cn.ts
@@ -1,10 +1,14 @@
+import { getClientConfig } from "../config/client";
 import { SubmitKey } from "../store/config";
 
+const isApp = !!getClientConfig()?.isApp;
+
 const cn = {
   WIP: "该功能仍在开发中……",
   Error: {
-    Unauthorized:
-      "访问密码不正确或为空，请前往[登录](/#/auth)页输入正确的访问密码，或者在[设置](/#/settings)页填入你自己的 OpenAI API Key。",
+    Unauthorized: isApp
+      ? "检测到无效 API Key，请前往[设置](/#/settings)页检查 API Key 是否配置正确。"
+      : "访问密码不正确或为空，请前往[登录](/#/auth)页输入正确的访问密码，或者在[设置](/#/settings)页填入你自己的 OpenAI API Key。",
   },
   Auth: {
     Title: "需要密码",
diff --git a/app/locales/en.ts b/app/locales/en.ts
index d37149c92..64cdc38bb 100644
--- a/app/locales/en.ts
+++ b/app/locales/en.ts
@@ -1,12 +1,16 @@
+import { getClientConfig } from "../config/client";
 import { SubmitKey } from "../store/config";
 import { LocaleType } from "./index";
 
 // if you are adding a new translation, please use PartialLocaleType instead of LocaleType
+
+const isApp = !!getClientConfig()?.isApp;
 const en: LocaleType = {
   WIP: "Coming Soon...",
   Error: {
-    Unauthorized:
-      "Unauthorized access, please enter access code in [auth](/#/auth) page.",
+    Unauthorized: isApp
+      ? "Invalid API Key, please check it in [Settings](/#/settings) page."
+      : "Unauthorized access, please enter access code in [auth](/#/auth) page, or enter your OpenAI API Key.",
   },
   Auth: {
     Title: "Need Access Code",