diff --git a/backend/app/dto/app.go b/backend/app/dto/app.go
index 7e286f18c..1bbf77617 100644
--- a/backend/app/dto/app.go
+++ b/backend/app/dto/app.go
@@ -133,17 +133,17 @@ type AppList struct {
 }
 
 type AppDefine struct {
-	Key      string   `json:"key"`
-	Name     string   `json:"name"`
-	Tags     []string `json:"tags"`
-	Versions []string `json:"versions"`
-	//Icon               string   `json:"icon"`
+	Key                string   `json:"key"`
+	Name               string   `json:"name"`
+	Tags               []string `json:"tags"`
+	Versions           []string `json:"versions"`
 	Author             string   `json:"author"`
 	Source             string   `json:"source"`
 	ShortDesc          string   `json:"short_desc"`
 	Type               string   `json:"type"`
 	Required           []string `json:"Required"`
 	CrossVersionUpdate bool     `json:"crossVersionUpdate"`
+	Limit              int      `json:"limit"`
 }
 
 func (define AppDefine) GetRequired() string {
diff --git a/backend/app/service/app.go b/backend/app/service/app.go
index ffb92616b..dd2153667 100644
--- a/backend/app/service/app.go
+++ b/backend/app/service/app.go
@@ -136,7 +136,7 @@ func (a AppService) Install(name string, appDetailId uint, params map[string]int
 	}
 	httpsPort, err := checkPort("PANEL_APP_PORT_HTTPS", params)
 	if err != nil {
-		return nil, fmt.Errorf("%d port is in used", httpPort)
+		return nil, fmt.Errorf("%d port is in used", httpsPort)
 	}
 
 	appDetail, err := appDetailRepo.GetFirst(commonRepo.WithByID(appDetailId))
@@ -483,51 +483,5 @@ func (a AppService) SyncAppList() error {
 
 	tx.Commit()
 
-	go syncCanUpdate()
 	return nil
 }
-
-func syncCanUpdate() {
-	apps, err := appRepo.GetBy()
-	if err != nil {
-		global.LOG.Errorf("sync update app error: %s", err.Error())
-	}
-	for _, app := range apps {
-		details, err := appDetailRepo.GetBy(appDetailRepo.WithAppId(app.ID))
-		if err != nil {
-			global.LOG.Errorf("sync update app error: %s", err.Error())
-		}
-		var versions []string
-		for _, detail := range details {
-			versions = append(versions, detail.Version)
-		}
-		versions = common.GetSortedVersions(versions)
-		lastVersion := versions[0]
-
-		var updateDetailIds []uint
-		for _, detail := range details {
-			if lastVersion == detail.Version {
-				continue
-			}
-			if common.CompareVersion(lastVersion, detail.Version) && (app.CrossVersionUpdate || !common.IsCrossVersion(detail.Version, lastVersion)) {
-				updateDetailIds = append(updateDetailIds, detail.ID)
-			}
-		}
-		if err := appDetailRepo.BatchUpdateBy(map[string]interface{}{"last_version": ""}); err != nil {
-			global.LOG.Errorf("sync update app error: %s", err.Error())
-		}
-
-		if err := appInstallRepo.BatchUpdateBy(map[string]interface{}{"can_update": 0}); err != nil {
-			global.LOG.Errorf("sync update app error: %s", err.Error())
-		}
-		if len(updateDetailIds) > 0 {
-			if err := appDetailRepo.BatchUpdateBy(map[string]interface{}{"last_version": lastVersion}, commonRepo.WithIdsIn(updateDetailIds)); err != nil {
-				global.LOG.Errorf("sync update app error: %s", err.Error())
-			}
-			//if err := appInstallRepo.BatchUpdateBy(map[string]interface{}{"can_update": 1}, appInstallRepo.WithDetailIdsIn(updateDetailIds)); err != nil {
-			//	global.LOG.Errorf("sync update app error: %s", err.Error())
-			//}
-		}
-
-	}
-}
diff --git a/backend/app/service/app_utils.go b/backend/app/service/app_utils.go
index db373af56..b919b72ae 100644
--- a/backend/app/service/app_utils.go
+++ b/backend/app/service/app_utils.go
@@ -488,6 +488,7 @@ func getApps(oldApps []model.App, items []dto.AppDefine) map[string]model.App {
 			app = model.App{}
 		}
 		app.Name = item.Name
+		app.Limit = item.Limit
 		app.Key = item.Key
 		app.ShortDesc = item.ShortDesc
 		app.Author = item.Author
diff --git a/frontend/src/views/app-store/installed/index.vue b/frontend/src/views/app-store/installed/index.vue
index bf699e705..1f533cd14 100644
--- a/frontend/src/views/app-store/installed/index.vue
+++ b/frontend/src/views/app-store/installed/index.vue
@@ -57,14 +57,14 @@
         />
     </ComplexTable>
     <el-dialog v-model="open" :title="$t('commons.msg.operate')" :before-close="handleClose" width="30%">
-        <el-alert
+        <!-- <el-alert
             v-if="operateReq.operate != 'update'"
             :title="getMsg(operateReq.operate)"
             type="warning"
             :closable="false"
             show-icon
-        />
-        <div v-else style="text-align: center">
+        /> -->
+        <div style="text-align: center">
             <p>{{ $t('app.versioneSelect') }}</p>
             <el-select v-model="operateReq.detailId">
                 <el-option
@@ -198,28 +198,28 @@ const onOperate = async (operation: string) => {
     });
 };
 
-const getMsg = (op: string) => {
-    let tip = '';
-    switch (op) {
-        case 'up':
-            tip = i18n.global.t('app.up');
-            break;
-        case 'down':
-            tip = i18n.global.t('app.down');
-            break;
-        case 'restart':
-            tip = i18n.global.t('app.restart');
-            break;
-        case 'delete':
-            tip = i18n.global.t('app.deleteWarn');
-            break;
-        case 'sync':
-            tip = i18n.global.t('app.sync');
-            break;
-        default:
-    }
-    return tip;
-};
+// const getMsg = (op: string) => {
+//     let tip = '';
+//     switch (op) {
+//         case 'up':
+//             tip = i18n.global.t('app.up');
+//             break;
+//         case 'down':
+//             tip = i18n.global.t('app.down');
+//             break;
+//         case 'restart':
+//             tip = i18n.global.t('app.restart');
+//             break;
+//         case 'delete':
+//             tip = i18n.global.t('app.deleteWarn');
+//             break;
+//         case 'sync':
+//             tip = i18n.global.t('app.sync');
+//             break;
+//         default:
+//     }
+//     return tip;
+// };
 
 const buttons = [
     {