diff --git a/src/function/sync/apply-actions/cache.ts b/src/function/sync/apply-actions/cache.ts
index f756a55..fcf9555 100644
--- a/src/function/sync/apply-actions/cache.ts
+++ b/src/function/sync/apply-actions/cache.ts
@@ -40,7 +40,6 @@ export class Cache {
   categoriesWithModifiedUsedTimes = new Set<string>()
   categoriesWithModifiedTasks = new Set<string>()
 
-  devicesWithModifiedInstalledApps = new Set<string>()
   devicesWithModifiedShowDeviceConnected = new Map<string, boolean>()
 
   invalidiateUserList = false
@@ -241,22 +240,6 @@ export class Cache {
       this.categoriesWithModifiedUsedTimes.clear()
     }
 
-    if (this.devicesWithModifiedInstalledApps.size > 0) {
-      await database.device.update({
-        installedAppsVersion: generateVersionId()
-      }, {
-        where: {
-          familyId,
-          deviceId: {
-            [Sequelize.Op.in]: setToList(this.devicesWithModifiedInstalledApps)
-          }
-        },
-        transaction
-      })
-
-      this.devicesWithModifiedInstalledApps.clear()
-    }
-
     if (this.invalidiateUserList) {
       await database.family.update({
         userListVersion: generateVersionId()
diff --git a/src/function/sync/apply-actions/dispatch-app-logic-action/updateinstalledapps.ts b/src/function/sync/apply-actions/dispatch-app-logic-action/updateinstalledapps.ts
index bde22e9..fae4520 100644
--- a/src/function/sync/apply-actions/dispatch-app-logic-action/updateinstalledapps.ts
+++ b/src/function/sync/apply-actions/dispatch-app-logic-action/updateinstalledapps.ts
@@ -16,12 +16,32 @@
  */
 
 import { UpdateInstalledAppsAction } from '../../../../action'
+import { types } from '../../../../database/encryptedapplist'
+import { generateVersionId } from '../../../../util/token'
 import { Cache } from '../cache'
 
-export async function dispatchUpdateInstalledApps (_: {
+export async function dispatchUpdateInstalledApps ({ deviceId, action, cache }: {
   deviceId: string
   action: UpdateInstalledAppsAction
   cache: Cache
 }) {
-  // do nothing
+  async function upsert({ type, data }: { type: number, data: Buffer }) {
+    await cache.database.encryptedAppList.upsert({
+      familyId: cache.familyId,
+      deviceId,
+      type,
+      version: generateVersionId(),
+      data
+    }, { transaction: cache.transaction })
+  }
+
+  if (action.base) {
+    await upsert({ type: types.base, data: action.base })
+  }
+
+  if (action.diff) {
+    await upsert({ type: types.diff, data: action.diff })
+  }
+
+  cache.incrementTriggeredSyncLevel(1)
 }