diff --git a/share/package.json b/share/package.json
index afc31671..d4c36584 100644
--- a/share/package.json
+++ b/share/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@grimity/dto",
-  "version": "1.0.29",
+  "version": "1.0.30",
   "types": "dist/share/index.d.ts",
   "exports": {
     ".": {
diff --git a/src/module/album/dto/album.response.ts b/src/module/album/dto/album.base.response.ts
similarity index 100%
rename from src/module/album/dto/album.response.ts
rename to src/module/album/dto/album.base.response.ts
diff --git a/src/module/album/dto/index.ts b/src/module/album/dto/index.ts
index 80f1d387..6ae0da21 100644
--- a/src/module/album/dto/index.ts
+++ b/src/module/album/dto/index.ts
@@ -1,2 +1,2 @@
 export * from './album.request';
-export * from './album.response';
+export * from './album.base.response';
diff --git a/src/module/chat/dto/chat-message.base.response.ts b/src/module/chat/dto/chat-message.base.response.ts
new file mode 100644
index 00000000..5ed9007d
--- /dev/null
+++ b/src/module/chat/dto/chat-message.base.response.ts
@@ -0,0 +1,19 @@
+import { ApiProperty } from '@nestjs/swagger';
+
+export class ChatMessageBaseResponse {
+  @ApiProperty()
+  id: string;
+
+  @ApiProperty({ type: 'string', nullable: true })
+  content: string | null;
+
+  @ApiProperty({
+    type: 'string',
+    nullable: true,
+    example: 'https://image.grimity.com/chat/123.webp',
+  })
+  image: string | null;
+
+  @ApiProperty()
+  createdAt: Date;
+}
diff --git a/src/module/chat/dto/chat-message.response.ts b/src/module/chat/dto/chat-message.response.ts
index 9b186391..2373a300 100644
--- a/src/module/chat/dto/chat-message.response.ts
+++ b/src/module/chat/dto/chat-message.response.ts
@@ -1,24 +1,7 @@
 import { ApiProperty } from '@nestjs/swagger';
 import { CursorResponse } from '../../../shared/response';
-import { UserBaseResponse } from '../../../module/user/dto';
-
-export class ChatMessageBaseResponse {
-  @ApiProperty()
-  id: string;
-
-  @ApiProperty({ type: 'string', nullable: true })
-  content: string | null;
-
-  @ApiProperty({
-    type: 'string',
-    nullable: true,
-    example: 'https://image.grimity.com/chat/123.webp',
-  })
-  image: string | null;
-
-  @ApiProperty()
-  createdAt: Date;
-}
+import { UserBaseResponse } from '../../user/dto';
+import { ChatMessageBaseResponse } from './chat-message.base.response';
 
 export class ReplyToResponse extends ChatMessageBaseResponse {}
 
diff --git a/src/module/chat/dto/chat.response.ts b/src/module/chat/dto/chat.response.ts
index 6239fd09..47af0bfe 100644
--- a/src/module/chat/dto/chat.response.ts
+++ b/src/module/chat/dto/chat.response.ts
@@ -1,7 +1,7 @@
 import { ApiProperty } from '@nestjs/swagger';
 import { CursorResponse } from '../../../shared/response';
-import { UserBaseResponse } from '../../../module/user/dto';
-import { ChatMessageBaseResponse } from './chat-message.response';
+import { UserBaseResponse } from '../../user/dto';
+import { ChatMessageBaseResponse } from './chat-message.base.response';
 
 export class LastChatMessageResponse extends ChatMessageBaseResponse {
   @ApiProperty({
diff --git a/src/module/chat/dto/index.ts b/src/module/chat/dto/index.ts
index 26916691..637ca25a 100644
--- a/src/module/chat/dto/index.ts
+++ b/src/module/chat/dto/index.ts
@@ -1,5 +1,6 @@
 export * from './chat.request';
 export * from './chat.response';
 
+export * from './chat-message.base.response';
 export * from './chat-message.request';
 export * from './chat-message.response';
diff --git a/src/module/feed-comment/dto/feed-comment.base.response.ts b/src/module/feed-comment/dto/feed-comment.base.response.ts
new file mode 100644
index 00000000..e33dc56d
--- /dev/null
+++ b/src/module/feed-comment/dto/feed-comment.base.response.ts
@@ -0,0 +1,15 @@
+import { ApiProperty } from '@nestjs/swagger';
+
+export class FeedCommentBaseResponse {
+  @ApiProperty()
+  id: string;
+
+  @ApiProperty()
+  content: string;
+
+  @ApiProperty()
+  createdAt: Date;
+
+  @ApiProperty()
+  likeCount: number;
+}
diff --git a/src/module/feed-comment/dto/feed-comment.response.ts b/src/module/feed-comment/dto/feed-comment.response.ts
index 13e27832..dfd16028 100644
--- a/src/module/feed-comment/dto/feed-comment.response.ts
+++ b/src/module/feed-comment/dto/feed-comment.response.ts
@@ -1,24 +1,13 @@
 import { ApiProperty } from '@nestjs/swagger';
-import { UserBaseResponse } from '../../user/dto/user.dto.response';
-
-export class FeedCommentBaseResponse {
-  @ApiProperty()
-  id: string;
-
-  @ApiProperty()
-  content: string;
-
-  @ApiProperty()
-  createdAt: Date;
-
-  @ApiProperty()
-  likeCount: number;
+import { UserBaseResponse } from '../../user/dto/user.base.response';
+import { FeedCommentBaseResponse } from './feed-comment.base.response';
 
+export class FeedCommentWithWriterResponse extends FeedCommentBaseResponse {
   @ApiProperty({ type: UserBaseResponse })
   writer: UserBaseResponse;
 }
 
-export class ChildFeedCommentResponse extends FeedCommentBaseResponse {
+export class ChildFeedCommentResponse extends FeedCommentWithWriterResponse {
   @ApiProperty({ type: UserBaseResponse, nullable: true })
   mentionedUser: UserBaseResponse | null;
 
@@ -26,7 +15,7 @@ export class ChildFeedCommentResponse extends FeedCommentBaseResponse {
   isLike: boolean;
 }
 
-export class ParentFeedCommentResponse extends FeedCommentBaseResponse {
+export class ParentFeedCommentResponse extends FeedCommentWithWriterResponse {
   @ApiProperty({ type: ChildFeedCommentResponse, isArray: true })
   childComments: ChildFeedCommentResponse[];
 
diff --git a/src/module/feed-comment/dto/index.ts b/src/module/feed-comment/dto/index.ts
index 28e028da..a9d31e17 100644
--- a/src/module/feed-comment/dto/index.ts
+++ b/src/module/feed-comment/dto/index.ts
@@ -1,2 +1,4 @@
+export * from './feed-comment.base.response';
+
 export * from './feed-comment.request';
 export * from './feed-comment.response';
diff --git a/src/module/feed/dto/feed.base.response.ts b/src/module/feed/dto/feed.base.response.ts
new file mode 100644
index 00000000..0d0665ba
--- /dev/null
+++ b/src/module/feed/dto/feed.base.response.ts
@@ -0,0 +1,32 @@
+import { ApiProperty } from '@nestjs/swagger';
+
+export class FeedBaseResponse {
+  @ApiProperty()
+  id: string;
+
+  @ApiProperty()
+  title: string;
+
+  @ApiProperty({ example: 'feed/UUID.webp' })
+  thumbnail: string;
+
+  @ApiProperty()
+  likeCount: number;
+
+  @ApiProperty()
+  viewCount: number;
+}
+
+export class FeedResponse extends FeedBaseResponse {
+  @ApiProperty({ type: 'string', isArray: true, example: ['feed/UUID.webp'] })
+  cards: string[];
+
+  @ApiProperty()
+  createdAt: Date;
+
+  @ApiProperty()
+  content: string;
+
+  @ApiProperty()
+  tags: string[];
+}
diff --git a/src/module/feed/dto/feed.response.ts b/src/module/feed/dto/feed.response.ts
index acbdc2df..61742ca8 100644
--- a/src/module/feed/dto/feed.response.ts
+++ b/src/module/feed/dto/feed.response.ts
@@ -2,45 +2,13 @@ import { ApiProperty } from '@nestjs/swagger';
 import {
   UserBaseResponse,
   UserBaseWithBlockedResponse,
-} from '../../user/dto/user.dto.response';
+} from '../../user/dto/user.base.response';
 import {
   CursorAndCountResponse,
   CursorResponse,
 } from '../../../shared/response/cursor.response';
-import { AlbumBaseResponse } from '../../album/dto/album.response';
 import { FeedCommentBaseResponse } from 'src/module/feed-comment/dto';
-
-// 최소단위
-export class FeedBaseResponse {
-  @ApiProperty()
-  id: string;
-
-  @ApiProperty()
-  title: string;
-
-  @ApiProperty({ example: 'feed/UUID.webp' })
-  thumbnail: string;
-
-  @ApiProperty()
-  likeCount: number;
-
-  @ApiProperty()
-  viewCount: number;
-}
-
-export class FeedResponse extends FeedBaseResponse {
-  @ApiProperty({ type: 'string', isArray: true, example: ['feed/UUID.webp'] })
-  cards: string[];
-
-  @ApiProperty()
-  createdAt: Date;
-
-  @ApiProperty()
-  content: string;
-
-  @ApiProperty()
-  tags: string[];
-}
+import { FeedBaseResponse, FeedResponse } from './feed.base.response';
 
 export class SearchedFeedResponse extends FeedBaseResponse {
   @ApiProperty({ type: UserBaseResponse })
diff --git a/src/module/feed/dto/index.ts b/src/module/feed/dto/index.ts
index 87381914..bd36f788 100644
--- a/src/module/feed/dto/index.ts
+++ b/src/module/feed/dto/index.ts
@@ -1,2 +1,4 @@
+export * from './feed.base.response';
+
 export * from './feed.request';
 export * from './feed.response';
diff --git a/src/module/post-comment/dto/index.ts b/src/module/post-comment/dto/index.ts
index bd46718e..0ea67bdb 100644
--- a/src/module/post-comment/dto/index.ts
+++ b/src/module/post-comment/dto/index.ts
@@ -1,2 +1,4 @@
+export * from './post-comment.base.response';
+
 export * from './post-comment.request';
 export * from './post-comment.response';
diff --git a/src/module/post-comment/dto/post-comment.base.response.ts b/src/module/post-comment/dto/post-comment.base.response.ts
new file mode 100644
index 00000000..f3c78e20
--- /dev/null
+++ b/src/module/post-comment/dto/post-comment.base.response.ts
@@ -0,0 +1,18 @@
+import { ApiProperty } from '@nestjs/swagger';
+
+export class PostCommentBaseResponse {
+  @ApiProperty()
+  id: string;
+
+  @ApiProperty()
+  content: string;
+
+  @ApiProperty()
+  createdAt: Date;
+
+  @ApiProperty()
+  likeCount: number;
+
+  @ApiProperty()
+  isLike: boolean;
+}
diff --git a/src/module/post-comment/dto/post-comment.response.ts b/src/module/post-comment/dto/post-comment.response.ts
index bbd890e2..f13d6b36 100644
--- a/src/module/post-comment/dto/post-comment.response.ts
+++ b/src/module/post-comment/dto/post-comment.response.ts
@@ -1,36 +1,22 @@
 import { ApiProperty } from '@nestjs/swagger';
-import { UserBaseResponse } from '../../user/dto/user.dto.response';
-
-export class PostCommentBaseResponse {
-  @ApiProperty()
-  id: string;
-
-  @ApiProperty()
-  content: string;
-
-  @ApiProperty()
-  createdAt: Date;
-
-  @ApiProperty()
-  likeCount: number;
+import { UserBaseResponse } from '../../user/dto/user.base.response';
+import { PostCommentBaseResponse } from './post-comment.base.response';
 
+export class PostCommentWithWriterResponse extends PostCommentBaseResponse {
   @ApiProperty({
     type: UserBaseResponse,
     nullable: true,
     description: 'null이면 익명화',
   })
   writer: UserBaseResponse | null;
-
-  @ApiProperty()
-  isLike: boolean;
 }
 
-export class ChildPostCommentResponse extends PostCommentBaseResponse {
+export class ChildPostCommentResponse extends PostCommentWithWriterResponse {
   @ApiProperty({ type: UserBaseResponse, nullable: true })
   mentionedUser: UserBaseResponse | null;
 }
 
-export class ParentPostCommentResponse extends PostCommentBaseResponse {
+export class ParentPostCommentResponse extends PostCommentWithWriterResponse {
   @ApiProperty()
   isDeleted: boolean;
 
diff --git a/src/module/post/dto/index.ts b/src/module/post/dto/index.ts
index 05f69a3f..e0887bbb 100644
--- a/src/module/post/dto/index.ts
+++ b/src/module/post/dto/index.ts
@@ -1,2 +1,4 @@
+export * from './post.base.response';
+
 export * from './post.request';
 export * from './post.response';
diff --git a/src/module/post/dto/post.base.response.ts b/src/module/post/dto/post.base.response.ts
new file mode 100644
index 00000000..67c8a27c
--- /dev/null
+++ b/src/module/post/dto/post.base.response.ts
@@ -0,0 +1,30 @@
+import { ApiProperty } from '@nestjs/swagger';
+import { postTypes } from '../../../common/constants/post.constant';
+
+export class PostBaseResponse {
+  @ApiProperty()
+  id: string;
+
+  @ApiProperty()
+  title: string;
+
+  @ApiProperty()
+  content: string;
+
+  @ApiProperty({ type: 'string', nullable: true, description: 'FULL URL' })
+  thumbnail: string | null;
+
+  @ApiProperty()
+  createdAt: Date;
+}
+
+export class PostResponse extends PostBaseResponse {
+  @ApiProperty({ enum: postTypes })
+  type: (typeof postTypes)[number];
+
+  @ApiProperty()
+  viewCount: number;
+
+  @ApiProperty()
+  commentCount: number;
+}
diff --git a/src/module/post/dto/post.response.ts b/src/module/post/dto/post.response.ts
index 2ab2b0b2..b2813e60 100644
--- a/src/module/post/dto/post.response.ts
+++ b/src/module/post/dto/post.response.ts
@@ -2,44 +2,19 @@ import { ApiProperty } from '@nestjs/swagger';
 import { UserBaseResponse } from '../../user/dto';
 import { TotalCountResponse } from '../../../shared/response/total-count.response';
 import { postTypes } from '../../../common/constants/post.constant';
+import { PostBaseResponse, PostResponse } from './post.base.response';
 
-export class PostBaseResponse {
-  @ApiProperty()
-  id: string;
-
-  @ApiProperty()
-  title: string;
-
-  @ApiProperty()
-  content: string;
-
-  @ApiProperty({ type: 'string', nullable: true, description: 'FULL URL' })
-  thumbnail: string | null;
-
-  @ApiProperty()
-  createdAt: Date;
-}
-
-export class PostResponse extends PostBaseResponse {
-  @ApiProperty({ enum: postTypes })
-  type: (typeof postTypes)[number];
-
-  @ApiProperty()
-  viewCount: number;
-
-  @ApiProperty()
-  commentCount: number;
-
+export class PostWithAuthorResponse extends PostResponse {
   @ApiProperty({ type: UserBaseResponse })
   author: UserBaseResponse;
 }
 
 export class PostsResponse extends TotalCountResponse {
-  @ApiProperty({ type: PostResponse, isArray: true })
-  posts: PostResponse[];
+  @ApiProperty({ type: PostWithAuthorResponse, isArray: true })
+  posts: PostWithAuthorResponse[];
 }
 
-export class PostDetailResponse extends PostResponse {
+export class PostDetailResponse extends PostWithAuthorResponse {
   @ApiProperty()
   likeCount: number;
 
@@ -51,8 +26,8 @@ export class PostDetailResponse extends PostResponse {
 }
 
 export class MySavePostsResponse extends TotalCountResponse {
-  @ApiProperty({ type: PostResponse, isArray: true })
-  posts: PostResponse[];
+  @ApiProperty({ type: PostWithAuthorResponse, isArray: true })
+  posts: PostWithAuthorResponse[];
 }
 
 export class MyPostResponse extends PostBaseResponse {
diff --git a/src/module/post/post.controller.ts b/src/module/post/post.controller.ts
index 6da5fff5..c7d82a49 100644
--- a/src/module/post/post.controller.ts
+++ b/src/module/post/post.controller.ts
@@ -28,11 +28,11 @@ import {
 } from './dto/post.request';
 import { IdResponse } from 'src/shared/response/id.response';
 import {
-  PostBaseResponse,
-  PostResponse,
   PostsResponse,
   PostDetailResponse,
+  PostWithAuthorResponse,
 } from './dto/post.response';
+import { PostBaseResponse } from './dto';
 
 @ApiTags('/posts')
 @ApiResponse({ status: 401, description: 'Unauthorized' })
@@ -67,9 +67,9 @@ export class PostController {
   }
 
   @ApiOperation({ summary: '공지사항 조회' })
-  @ApiResponse({ status: 200, type: [PostResponse] })
+  @ApiResponse({ status: 200, type: [PostWithAuthorResponse] })
   @Get('notices')
-  async getNotices(): Promise<PostResponse[]> {
+  async getNotices(): Promise<PostWithAuthorResponse[]> {
     return await this.postService.getNotices();
   }
 
diff --git a/src/module/push/push.service.ts b/src/module/push/push.service.ts
index 58358878..3e56dfcb 100644
--- a/src/module/push/push.service.ts
+++ b/src/module/push/push.service.ts
@@ -79,12 +79,13 @@ export class PushService implements OnModuleInit {
       fcmOptions: {
         ...(data.imageUrl && { imageUrl: data.imageUrl }), // 여기에 이미지 URL
       },
-      ...(data.silent && {
-        headers: {
+      headers: {
+        ...(data.silent && {
           'apns-priority': '5', // silent 푸시를 위한 우선순위 설정
           'apns-push-type': 'background',
-        },
-      }),
+        }),
+        ...(data.key && { 'apns-collapse-id': data.key }), // 같은 key면 기존 알림 덮어씀
+      },
     };
 
     try {
diff --git a/src/module/user/dto/index.ts b/src/module/user/dto/index.ts
index 4c4d9359..81cd4d7f 100644
--- a/src/module/user/dto/index.ts
+++ b/src/module/user/dto/index.ts
@@ -1,4 +1,4 @@
-export * from './user.dto.response';
+export * from './user.base.response';
 
 export * from './user.request';
 export * from './user.response';
diff --git a/src/module/user/dto/user.dto.response.ts b/src/module/user/dto/user.base.response.ts
similarity index 100%
rename from src/module/user/dto/user.dto.response.ts
rename to src/module/user/dto/user.base.response.ts
diff --git a/src/module/user/dto/user.response.ts b/src/module/user/dto/user.response.ts
index e4762a0f..4cf13787 100644
--- a/src/module/user/dto/user.response.ts
+++ b/src/module/user/dto/user.response.ts
@@ -5,11 +5,11 @@ import {
   CursorAndCountResponse,
 } from '../../../shared/response/cursor.response';
 import { ConflictResponse } from '../../../shared/response/conflict.response';
-import { AlbumBaseResponse } from '../../album/dto/album.response';
+import { AlbumBaseResponse } from '../../album/dto/album.base.response';
 import {
   UserBaseResponse,
   UserBaseWithBlockedResponse,
-} from './user.dto.response';
+} from './user.base.response';
 
 export class LinkResponse {
   @ApiProperty({ example: '인스타그램' })
diff --git a/src/module/user/me.controller.ts b/src/module/user/me.controller.ts
index e09afd68..96447f8f 100644
--- a/src/module/user/me.controller.ts
+++ b/src/module/user/me.controller.ts
@@ -29,7 +29,7 @@ import {
   GetFollowingRequest,
   RegisterPushTokenRequest,
 } from './dto/user.request';
-import { AlbumBaseResponse } from '../album/dto/album.response';
+import { AlbumBaseResponse } from '../album/dto/album.base.response';
 import {
   MyProfileResponse,
   UpdateProfileConflictResponse,