diff --git a/myApp/HaruDanim/Haru_DanimWatch Watch App/Haru_DanimWatchApp.swift b/myApp/HaruDanim/Haru_DanimWatch Watch App/Haru_DanimWatchApp.swift
index bd97eea..05c9384 100644
--- a/myApp/HaruDanim/Haru_DanimWatch Watch App/Haru_DanimWatchApp.swift	
+++ b/myApp/HaruDanim/Haru_DanimWatch Watch App/Haru_DanimWatchApp.swift	
@@ -9,6 +9,12 @@ import SwiftUI
 
 @main
 struct Haru_DanimWatch_Watch_AppApp: App {
+    init() {
+        // 컴플리케이션용 스냅숏은 워치 앱이 백그라운드로 깨어나 받는다.
+        // 그 시점에 델리게이트가 있어야 하므로 화면 표시 전에 세션을 활성화한다
+        WatchStore.shared.activate()
+    }
+
     var body: some Scene {
         WindowGroup {
             ContentView()
diff --git a/myApp/HaruDanim/Haru_DanimWatch Watch App/WatchStore.swift b/myApp/HaruDanim/Haru_DanimWatch Watch App/WatchStore.swift
index fb5bd03..fbc2846 100644
--- a/myApp/HaruDanim/Haru_DanimWatch Watch App/WatchStore.swift	
+++ b/myApp/HaruDanim/Haru_DanimWatch Watch App/WatchStore.swift	
@@ -113,6 +113,16 @@ extension WatchStore: WCSessionDelegate {
             WatchStore.shared.apply(decoded)
         }
     }
+
+    /// iPhone이 컴플리케이션 갱신용 전용 채널로 미는 스냅숏.
+    /// 워치 앱이 꺼져 있어도 백그라운드로 깨어나 수신 → 캐시 + 타임라인 갱신(apply)
+    nonisolated func session(_ session: WCSession, didReceiveUserInfo userInfo: [String: Any] = [:]) {
+        guard let data = userInfo[WatchSync.snapshotKey] as? Data,
+              let decoded = WatchSnapshot.decode(data) else { return }
+        Task { @MainActor in
+            WatchStore.shared.apply(decoded)
+        }
+    }
 }
 
 // MARK: - 색 변환 (워치 타깃 전용)
diff --git a/myApp/HaruDanim/Haru_DanimWatchWidgets/ComplicationSupport.swift b/myApp/HaruDanim/Haru_DanimWatchWidgets/ComplicationSupport.swift
index 90e03ae..9ba5053 100644
--- a/myApp/HaruDanim/Haru_DanimWatchWidgets/ComplicationSupport.swift
+++ b/myApp/HaruDanim/Haru_DanimWatchWidgets/ComplicationSupport.swift
@@ -15,9 +15,7 @@ import WidgetKit
 // MARK: - 스냅숏 로드
 
 nonisolated enum ComplicationStore {
-    static var defaults: UserDefaults {
-        UserDefaults(suiteName: "group.com.yechan.HaruDanim") ?? .standard
-    }
+    static let defaults: UserDefaults = UserDefaults(suiteName: "group.com.yechan.HaruDanim") ?? .standard
 
     static func snapshot() -> WatchSnapshot? {
         guard let data = defaults.data(forKey: WatchSync.cachedSnapshotKey) else { return nil }
diff --git a/myApp/HaruDanim/IOS/Core/WatchSyncManager.swift b/myApp/HaruDanim/IOS/Core/WatchSyncManager.swift
index a62ddf1..5d1582b 100644
--- a/myApp/HaruDanim/IOS/Core/WatchSyncManager.swift
+++ b/myApp/HaruDanim/IOS/Core/WatchSyncManager.swift
@@ -113,13 +113,33 @@ final class WatchSyncManager: NSObject {
         return snapshot
     }
 
+    /// 컴플리케이션 전용 전송의 최근 상태 (하루 전송 예산이 있어 절약해서 보냄)
+    private var lastComplicationStateKey = ""
+    private var lastComplicationPushAt = Date.distantPast
+
     /// 최신 스냅숏을 워치로 전송 (데이터 변경 시마다 호출)
     func pushSnapshot() {
         guard WCSession.isSupported() else { return }
         let session = WCSession.default
         guard session.activationState == .activated, session.isPaired, session.isWatchAppInstalled else { return }
-        guard let data = makeSnapshot().encoded() else { return }
+        let snapshot = makeSnapshot()
+        guard let data = snapshot.encoded() else { return }
+        // applicationContext: 워치 앱이 다음에 열릴 때 확실히 전달되는 기본 채널
         try? session.updateApplicationContext([WatchSync.snapshotKey: data])
+        pushForComplicationIfNeeded(session: session, snapshot: snapshot, data: data)
+    }
+
+    /// 워치 앱이 꺼져 있어도 컴플리케이션이 갱신되도록 전용 채널로 전송.
+    /// 시스템이 하루 전송 횟수를 제한하므로 측정 상태가 바뀌었거나 30분이 지났을 때만 보낸다
+    private func pushForComplicationIfNeeded(session: WCSession, snapshot: WatchSnapshot, data: Data) {
+        guard session.isComplicationEnabled else { return }
+        let stateKey = "\(snapshot.runningName ?? "")|\(snapshot.extraRunningCount)|\(snapshot.isPremium)"
+        let now = Date.now
+        guard stateKey != lastComplicationStateKey
+            || now.timeIntervalSince(lastComplicationPushAt) > 30 * 60 else { return }
+        lastComplicationStateKey = stateKey
+        lastComplicationPushAt = now
+        session.transferCurrentComplicationUserInfo([WatchSync.snapshotKey: data])
     }
 
     // MARK: 명령 처리