diff --git a/app/build.gradle.kts b/app/build.gradle.kts
index cff2f4f..df18b7a 100644
--- a/app/build.gradle.kts
+++ b/app/build.gradle.kts
@@ -24,8 +24,8 @@ android {
         applicationId = "kr.tkrmagid.easyappliance"
         minSdk = 24
         targetSdk = 35
-        versionCode = (project.findProperty("verCode") as String?)?.toInt() ?: 6
-        versionName = (project.findProperty("verName") as String?) ?: "0.3.3"
+        versionCode = (project.findProperty("verCode") as String?)?.toInt() ?: 7
+        versionName = (project.findProperty("verName") as String?) ?: "0.3.4"
         testInstrumentationRunner = "androidx.test.runner.AndroidJUnitRunner"
     }
 
diff --git a/app/src/main/java/kr/tkrmagid/easyappliance/ui/AdminScreen.kt b/app/src/main/java/kr/tkrmagid/easyappliance/ui/AdminScreen.kt
index 8f78e92..3f7c09b 100644
--- a/app/src/main/java/kr/tkrmagid/easyappliance/ui/AdminScreen.kt
+++ b/app/src/main/java/kr/tkrmagid/easyappliance/ui/AdminScreen.kt
@@ -115,6 +115,15 @@ fun AdminScreen(
             }
         }
 
+        if (!state.usingRealApi) {
+            Spacer(Modifier.height(12.dp))
+            Text(
+                "지금 목록은 예시(샘플) 기기입니다. 실제 기기를 보려면 아래 'SmartThings 연결'에서 토큰을 입력한 뒤 '목록 새로고침'을 누르세요.",
+                style = MaterialTheme.typography.bodyMedium,
+                color = MaterialTheme.colorScheme.error,
+            )
+        }
+
         Spacer(Modifier.height(12.dp))
         OutlinedButton(
             onClick = onRefreshDevices,