diff --git a/app/src/components/home/SideBar.tsx b/app/src/components/home/SideBar.tsx
index f82c088..ba582d8 100644
--- a/app/src/components/home/SideBar.tsx
+++ b/app/src/components/home/SideBar.tsx
@@ -15,13 +15,14 @@ import {
   useEffectAsync,
 } from "../../utils.ts";
 import {
+  deleteAllConversations,
   deleteConversation,
   toggleConversation,
   updateConversationList,
 } from "../../conversation/history.ts";
 import { Button } from "../ui/button.tsx";
 import { setMenu } from "../../store/menu.ts";
-import { Copy, LogIn, Plus, RotateCw } from "lucide-react";
+import {Copy, Eraser, LogIn, Plus, RotateCw} from "lucide-react";
 import ConversationSegment from "./ConversationSegment.tsx";
 import {
   AlertDialog,
@@ -31,7 +32,7 @@ import {
   AlertDialogDescription,
   AlertDialogFooter,
   AlertDialogHeader,
-  AlertDialogTitle,
+  AlertDialogTitle, AlertDialogTrigger,
 } from "../ui/alert-dialog.tsx";
 import {
   getSharedLink,
@@ -54,6 +55,7 @@ function SideBar() {
   const history: ConversationInstance[] = useSelector(selectHistory);
   const refresh = useRef(null);
   const [shared, setShared] = useState<string>("");
+  const [removeAll, setRemoveAll] = useState<boolean>(false);
   useEffectAsync(async () => {
     await updateConversationList(dispatch);
   }, []);
@@ -75,6 +77,47 @@ function SideBar() {
               <Plus className={`h-4 w-4`} />
             </Button>
             <div className={`grow`} />
+            <AlertDialog open={removeAll} onOpenChange={setRemoveAll}>
+              <AlertDialogTrigger asChild>
+                <Button variant={`ghost`} size={`icon`}>
+                  <Eraser className={`h-4 w-4`} />
+                </Button>
+              </AlertDialogTrigger>
+              <AlertDialogContent>
+                <AlertDialogHeader>
+                  <AlertDialogTitle>{t("conversation.remove-all-title")}</AlertDialogTitle>
+                  <AlertDialogDescription>
+                    {t("conversation.remove-all-description")}
+                  </AlertDialogDescription>
+                </AlertDialogHeader>
+                <AlertDialogFooter>
+                  <AlertDialogCancel>
+                    {t("conversation.cancel")}
+                  </AlertDialogCancel>
+                  <AlertDialogAction
+                    onClick={async (e) => {
+                      e.preventDefault();
+                      e.stopPropagation();
+
+                      if (await deleteAllConversations(dispatch))
+                        toast({
+                          title: t("conversation.delete-success"),
+                          description: t("conversation.delete-success-prompt"),
+                        });
+                      else
+                        toast({
+                          title: t("conversation.delete-failed"),
+                          description: t("conversation.delete-failed-prompt"),
+                        });
+                      setOperateConversation({ target: null, type: "" });
+                      setRemoveAll(false);
+                    }}
+                  >
+                    {t("conversation.delete")}
+                  </AlertDialogAction>
+                </AlertDialogFooter>
+              </AlertDialogContent>
+            </AlertDialog>
             <Button
               className={`refresh-action`}
               variant={`ghost`}
diff --git a/app/src/conf.ts b/app/src/conf.ts
index f4c896d..aecb8dd 100644
--- a/app/src/conf.ts
+++ b/app/src/conf.ts
@@ -1,7 +1,7 @@
 import axios from "axios";
 import { Model } from "./conversation/types.ts";
 
-export const version = "3.5.2";
+export const version = "3.5.3";
 export const dev: boolean = window.location.hostname === "localhost";
 export const deploy: boolean = true;
 export let rest_api: string = "http://localhost:8094";
diff --git a/app/src/conversation/history.ts b/app/src/conversation/history.ts
index 8aaeaf5..5969e78 100644
--- a/app/src/conversation/history.ts
+++ b/app/src/conversation/history.ts
@@ -36,6 +36,15 @@ export async function deleteConversation(
   return true;
 }
 
+export async function deleteAllConversations(
+  dispatch: AppDispatch,
+): Promise<boolean> {
+  const resp = await axios.get("/conversation/clean");
+  if (!resp.data.status) return false;
+  await manager.deleteAll(dispatch);
+  return true;
+}
+
 export async function toggleConversation(
   dispatch: AppDispatch,
   id: number,
diff --git a/app/src/conversation/manager.ts b/app/src/conversation/manager.ts
index 04d0d84..ecce429 100644
--- a/app/src/conversation/manager.ts
+++ b/app/src/conversation/manager.ts
@@ -82,6 +82,13 @@ export class Manager {
     if (this.conversations[id]) delete this.conversations[id];
   }
 
+  public async deleteAll(dispatch: AppDispatch): Promise<void> {
+    const ids = Object.keys(this.conversations).map((v) => parseInt(v));
+    for (const id of ids) await this.delete(dispatch, id);
+
+    await this.toggle(dispatch, -1);
+  }
+
   public async send(t: any, auth: boolean, props: ChatProps): Promise<boolean> {
     const id = this.getCurrent();
     if (!this.conversations[id]) return false;
diff --git a/app/src/dialogs/Subscription.tsx b/app/src/dialogs/Subscription.tsx
index d2ebe6f..6383683 100644
--- a/app/src/dialogs/Subscription.tsx
+++ b/app/src/dialogs/Subscription.tsx
@@ -54,7 +54,7 @@ function calc_prize(month: number): number {
     return base * 0.9;
   }
 
-  return 8 * month;
+  return base;
 }
 
 type UpgradeProps = {
diff --git a/app/src/i18n.ts b/app/src/i18n.ts
index 9df0b94..27cb89b 100644
--- a/app/src/i18n.ts
+++ b/app/src/i18n.ts
@@ -38,6 +38,9 @@ const resources = {
         "remove-title": "Are you absolutely sure?",
         "remove-description":
           "This action cannot be undone. This will permanently delete the conversation ",
+        "remove-all-title": "Clear History",
+        "remove-all-description":
+          "This action cannot be undone. This will permanently delete all conversations, continue?",
         cancel: "Cancel",
         delete: "Delete",
         "delete-conversation": "Delete Conversation",
@@ -225,6 +228,8 @@ const resources = {
         "refresh-failed-prompt": "请求出错，请重试。",
         "remove-title": "是否确定？",
         "remove-description": "此操作无法撤消。这将永久删除对话 ",
+        "remove-all-title": "清除历史",
+        "remove-all-description": "此操作无法撤消。这将永久删除所有对话，是否继续？",
         cancel: "取消",
         delete: "删除",
         "delete-conversation": "删除对话",
@@ -411,6 +416,9 @@ const resources = {
         "remove-title": "Вы уверены?",
         "remove-description":
           "Это действие нельзя отменить. Это навсегда удалит разговор ",
+        "remove-all-title": "Очистить историю",
+        "remove-all-description":
+          "Это действие нельзя отменить. Это навсегда удалит все разговоры, продолжить?",
         cancel: "Отмена",
         delete: "Удалить",
         "delete-conversation": "Удалить разговор",
diff --git a/manager/conversation/api.go b/manager/conversation/api.go
index d754755..86b1c1b 100644
--- a/manager/conversation/api.go
+++ b/manager/conversation/api.go
@@ -101,6 +101,31 @@ func DeleteAPI(c *gin.Context) {
 	})
 }
 
+func CleanAPI(c *gin.Context) {
+	user := auth.GetUser(c)
+	if user == nil {
+		c.JSON(http.StatusOK, gin.H{
+			"status":  false,
+			"message": "user not found",
+		})
+		return
+	}
+
+	db := utils.GetDBFromContext(c)
+	if err := DeleteAllConversations(db, *user); err != nil {
+		c.JSON(http.StatusOK, gin.H{
+			"status":  false,
+			"message": err.Error(),
+		})
+		return
+	}
+
+	c.JSON(http.StatusOK, gin.H{
+		"status":  true,
+		"message": "",
+	})
+}
+
 func ShareAPI(c *gin.Context) {
 	user := auth.GetUser(c)
 	if user == nil {
diff --git a/manager/conversation/router.go b/manager/conversation/router.go
index 64706ab..5c75f92 100644
--- a/manager/conversation/router.go
+++ b/manager/conversation/router.go
@@ -8,6 +8,7 @@ func Register(app *gin.Engine) {
 		router.GET("/list", ListAPI)
 		router.GET("/load", LoadAPI)
 		router.GET("/delete", DeleteAPI)
+		router.GET("/clean", CleanAPI)
 
 		// share
 		router.POST("/share", ShareAPI)
diff --git a/manager/conversation/storage.go b/manager/conversation/storage.go
index 0e71086..b260d38 100644
--- a/manager/conversation/storage.go
+++ b/manager/conversation/storage.go
@@ -1,6 +1,7 @@
 package conversation
 
 import (
+	"chat/auth"
 	"chat/globals"
 	"chat/utils"
 	"database/sql"
@@ -97,3 +98,8 @@ func (c *Conversation) DeleteConversation(db *sql.DB) bool {
 	}
 	return true
 }
+
+func DeleteAllConversations(db *sql.DB, user auth.User) error {
+	_, err := db.Exec("DELETE FROM conversation WHERE user_id = ?", user.GetID(db))
+	return err
+}