diff --git a/devicetypes/smartthings/arrival-sensor-ha.src/i18n/messages.properties b/devicetypes/smartthings/arrival-sensor-ha.src/i18n/messages.properties
index b2d9082..12d7d2f 100644
--- a/devicetypes/smartthings/arrival-sensor-ha.src/i18n/messages.properties
+++ b/devicetypes/smartthings/arrival-sensor-ha.src/i18n/messages.properties
@@ -23,14 +23,14 @@
 #==============================================================================
 # Korean (ko)
 # Device Preferences
-'''Give your device a name'''.ko=기기 이름 바꾸기
+'''Give your device a name'''.ko=기기 이름 설정
 '''Set Device Image'''.ko=기기 이미지 설정
-'''Presence timeout (minutes)'''.ko=시간 초과. 스마트폰 위치 정보
+'''Presence timeout (minutes)'''.ko=알람 유예 시간 설정 (분)
 '''Tap to set'''.ko=눌러서 설정
 '''Arrival Sensor'''.ko=도착알림 센서
 '''${currentValue}% battery'''.ko=${currentValue}% 배터리
 # Events / Notifications
-'''{{ linkText }} battery was {{ value }}'''.ko={{ linkText }}남아있는 배터리는 {{ value }}입니다.
-'''{{ linkText }} has arrived'''.ko={{ linkText }}집에 도착했습니다.
-'''{{ linkText }} has left'''.ko={{ linkText }}집을 나갔습니다.
+'''{{ linkText }} battery was {{ value }}'''.ko={{ linkText }}의 남은 배터리 {{ value }}
+'''{{ linkText }} has arrived'''.ko={{ linkText }} 귀가
+'''{{ linkText }} has left'''.ko={{ linkText }} 외출
 #==============================================================================
diff --git a/devicetypes/smartthings/mobile-presence.src/i18n/messages.properties b/devicetypes/smartthings/mobile-presence.src/i18n/messages.properties
index 3e4de71..63bec4d 100644
--- a/devicetypes/smartthings/mobile-presence.src/i18n/messages.properties
+++ b/devicetypes/smartthings/mobile-presence.src/i18n/messages.properties
@@ -23,10 +23,10 @@
 #==============================================================================
 # Korean (ko)
 # Device Preferences
-'''Give your device a name'''.ko=기기 이름 바꾸기
+'''Give your device a name'''.ko=기기 이름 설정
 '''Set Device Image'''.ko=기기 이미지 설정
 # Events / Notifications
-'''{{ linkText }} has left'''.ko={{ linkText }}집을 나갔습니다.
-'''{{ linkText }} has arrived'''.ko={{ linkText }}집에 도착했습니다.
+'''{{ linkText }} has left'''.ko={{ linkText }} 외출
+'''{{ linkText }} has arrived'''.ko={{ linkText }} 귀가
 '''present'''.ko=집안
 '''not present'''.ko=외출
diff --git a/devicetypes/smartthings/smartpower-outlet.src/i18n/messages.properties b/devicetypes/smartthings/smartpower-outlet.src/i18n/messages.properties
index 43c0831..0dfd7ca 100644
--- a/devicetypes/smartthings/smartpower-outlet.src/i18n/messages.properties
+++ b/devicetypes/smartthings/smartpower-outlet.src/i18n/messages.properties
@@ -22,14 +22,14 @@
 #==============================================================================
 # Korean (ko)
 # Device Preferences
-'''Give your device a name'''.ko=기기 이름 바꾸기
-'''Outlet'''.ko=플러그
+'''Give your device a name'''.ko=기기 이름 설정
+'''Outlet'''.ko= 스마트 플러그 
 # Events descriptionText
-'''{{ device.displayName }} is On'''.ko={{ device.displayName }}켜졌습니다.
-'''{{ device.displayName }} is Off'''.ko={{ device.displayName }}꺼졌습니다.
-'''{{ device.displayName }} power is {{ value }} Watts'''.ko={{ device.displayName }} 전원은 {{ value }}와트입니다
-'''On'''.ko=켜짐
+'''{{ device.displayName }} is On'''.ko={{ device.displayName }} 켜짐
+'''{{ device.displayName }} is Off'''.ko={{ device.displayName }} 꺼짐
+'''{{ device.displayName }} power is {{ value }} Watts'''.ko={{ device.displayName }} 전력은 {{ value }}와트입니다.
+'''On'''.ko= 켜짐
 '''Off'''.ko=꺼짐
-'''Turning On'''.ko=켜기
-'''Turning Off'''.ko=끄기
+'''Turning On'''.ko=켜는 중
+'''Turning Off'''.ko=끄는 중
 #==============================================================================
diff --git a/devicetypes/smartthings/smartsense-moisture-sensor.src/i18n/messages.properties b/devicetypes/smartthings/smartsense-moisture-sensor.src/i18n/messages.properties
index 8576710..3082071 100644
--- a/devicetypes/smartthings/smartsense-moisture-sensor.src/i18n/messages.properties
+++ b/devicetypes/smartthings/smartsense-moisture-sensor.src/i18n/messages.properties
@@ -31,14 +31,14 @@
 '''This feature allows you to correct any temperature variations by selecting an offset. Ex: If your sensor consistently reports a temp that's 5 degrees too warm, you'd enter '-5'. If 3 degrees too cold, enter '+3'.'''.ko=기준 온도를 원하는대로 몇 도 올리거나 내려서 설정할 수 있습니다.
 '''Degrees'''.ko=온도
 '''Adjust temperature by this many degrees'''.ko=몇 도씩 온도를 조절하십시오
-'''Give your device a name'''.ko=기기 이름 바꾸기
-'''Water Leak Sensor'''.ko=누수센서
+'''Give your device a name'''.ko=기기 이름 설정
+'''Water Leak Sensor'''.ko=누수감지 센서
 '''${currentValue}% battery'''.ko=${currentValue}% 배터리
 # Events descriptionText
 '''{{ device.displayName }} is dry'''.ko={{ device.displayName }}가 건조
 '''{{ device.displayName }} is wet'''.ko={{ device.displayName }}누수
-'''{{ device.displayName }} was {{ value }}°C'''.ko={{ device.displayName }}이(가) {{ value }}°C였습니다
+'''{{ device.displayName }} was {{ value }}°C'''.ko={{ device.displayName }}에서 {{ value }}°C 감지
 '''{{ device.displayName }} was {{ value }}°F'''.ko={{ device.displayName }}이(가) {{ value }}°F였습니다
 '''{{ device.displayName }} battery has too much power: (> 3.5) volts.'''.ko={{ device.displayName }} 배터리 전력이 너무 높습니다(3.5볼트 초과).
-'''{{ device.displayName }} battery was {{ value }}%'''.ko={{ device.displayName }}남아있는 배터리는 {{ value }}%입니다.
+'''{{ device.displayName }} battery was {{ value }}%'''.ko={{ device.displayName }}의 남은 배터리 {{ value }}%
 #==============================================================================
diff --git a/devicetypes/smartthings/smartsense-motion-sensor.src/i18n/messages.properties b/devicetypes/smartthings/smartsense-motion-sensor.src/i18n/messages.properties
index 50e37d6..fa17848 100644
--- a/devicetypes/smartthings/smartsense-motion-sensor.src/i18n/messages.properties
+++ b/devicetypes/smartthings/smartsense-motion-sensor.src/i18n/messages.properties
@@ -28,16 +28,16 @@
 '''This feature allows you to correct any temperature variations by selecting an offset. Ex: If your sensor consistently reports a temp that's 5 degrees too warm, you'd enter '-5'. If 3 degrees too cold, enter '+3'.'''.ko=기준 온도를 원하는대로 몇 도 올리거나 내려서 설정할 수 있습니다.
 '''Degrees'''.ko=온도
 '''Adjust temperature by this many degrees'''.ko=몇 도씩 온도를 조절하십시오
-'''Give your device a name'''.ko=기기 이름 바꾸기
+'''Give your device a name'''.ko=기기 이름 설정
 '''Motion Sensor'''.ko=모션 센서
-'''motion'''.ko=동작 감지
+'''motion'''.ko= 동작 감지 
 '''no motion'''.ko=동작 없음
 '''${currentValue}% battery'''.ko=${currentValue}% 배터리
 # Events descriptionText
-'''{{ device.displayName }} detected motion'''.ko={{ device.displayName }} 가 움직임을 감지하였습니다.
-'''{{ device.displayName }} motion has stopped'''.ko={{ device.displayName }}움직임이 중단되었습니다
-'''{{ device.displayName }} was {{ value }}°C'''.ko={{ device.displayName }}이(가){{ value }}°C였습니다.
+'''{{ device.displayName }} detected motion'''.ko={{ device.displayName }}에서 움직임이 감지되었습니다.
+'''{{ device.displayName }} motion has stopped'''.ko={{ device.displayName }}에서 움직임이 중단되었습니다.
+'''{{ device.displayName }} was {{ value }}°C'''.ko={{ device.displayName }}에서 {{ value }}°C 감지
 '''{{ device.displayName }} was {{ value }}°F'''.ko={{ device.displayName }}이(가) {{ value }}°F였습니다
 '''{{ device.displayName }} battery has too much power: (> 3.5) volts.'''.ko={{ device.displayName }} 배터리 전력이 너무 높습니다(3.5볼트 초과).
-'''{{ device.displayName }} battery was {{ value }}%'''.ko={{ device.displayName }}남아있는 배터리는 {{ value }}%입니다.
+'''{{ device.displayName }} battery was {{ value }}%'''.ko={{ device.displayName }}의 남은 배터리 {{ value }}%
 #==============================================================================
diff --git a/devicetypes/smartthings/smartsense-multi-sensor.src/i18n/messages.properties b/devicetypes/smartthings/smartsense-multi-sensor.src/i18n/messages.properties
index 98d0063..822300a 100644
--- a/devicetypes/smartthings/smartsense-multi-sensor.src/i18n/messages.properties
+++ b/devicetypes/smartthings/smartsense-multi-sensor.src/i18n/messages.properties
@@ -31,20 +31,20 @@
 '''Adjust temperature by this many degrees'''.ko=몇 도씩 온도를 조절하십시오
 '''Do you want to use this sensor on a garage door?'''.ko=차고 문의 센서 사용 설정하기
 '''Tap to set'''.ko=눌러서 설정
-'''Give your device a name'''.ko=기기 이름 바꾸기
-'''Multipurpose Sensor'''.ko=멀티 센서
+'''Give your device a name'''.ko=기기 이름 설정
+'''Multipurpose Sensor'''.ko=문 및 창 센서
 # Events descriptionText
-'''{{ device.displayName }} was opened'''.ko={{ device.displayName }}열림을 감지하였습니다.
-'''{{ device.displayName }} was closed'''.ko={{ device.displayName }}닫혔습니다.
-'''{{ device.displayName }} was active'''.ko={{ device.displayName }}활성화되었습니다.
-'''{{ device.displayName }} was inactive'''.ko={{ device.displayName }}비활성화되었습니다.
-'''{{ device.displayName }} was {{ value }}°C'''.ko={{ device.displayName }}이(가){{ value }}°C였습니다.
+'''{{ device.displayName }} was opened'''.ko={{ device.displayName }}에서 열림이 감지되었습니다.
+'''{{ device.displayName }} was closed'''.ko={{ device.displayName }}에서 닫힘이 감지되었습니다.
+'''{{ device.displayName }} was active'''.ko={{ device.displayName }} 활성화
+'''{{ device.displayName }} was inactive'''.ko={{ device.displayName }} 비활성화
+'''{{ device.displayName }} was {{ value }}°C'''.ko={{ device.displayName }}에서 {{ value }}°C 감지
 '''{{ device.displayName }} was {{ value }}°F'''.ko={{ device.displayName }}이(가) {{ value }}°F였습니다
-'''{{ device.displayName }} battery was {{ value }}%'''.ko={{ device.displayName }}남아있는 배터리는 {{ value }}%입니다.
+'''{{ device.displayName }} battery was {{ value }}%'''.ko={{ device.displayName }}의 남은 배터리 {{ value }}%
 '''Updating device to garage sensor'''.ko=기기-차고 센서 업데이트 중
 '''Updating device to open/close sensor'''.ko=기기-열림/닫힘 센서 업데이트 중
-'''Inactive'''.ko=비활성
-'''Active'''.ko=활성
-'''Open'''.ko=열림
+'''Inactive'''.ko=비활성 상태
+'''Active'''.ko=활성 상태
+'''Open'''.ko= 열림이 감지될 때
 '''Closed'''.ko=닫힘
 '''${currentValue}% battery'''.ko=${currentValue}% 배터리
diff --git a/smartapps/smartthings/notify-me-when.src/i18n/messages.properties b/smartapps/smartthings/notify-me-when.src/i18n/messages.properties
index f5d69d6..5511b24 100644
--- a/smartapps/smartthings/notify-me-when.src/i18n/messages.properties
+++ b/smartapps/smartthings/notify-me-when.src/i18n/messages.properties
@@ -23,9 +23,9 @@
 '''Minimum time between messages (optional, defaults to every message)'''.ko=메시지 전송 간격 설정
 '''If outside the US please make sure to enter the proper country code'''.ko=미국 이외 국가에 거주한다면 국가 코드와 함께 입력하여 주세요.
 '''Water Sensor Wet'''.ko=누수가 감지되었을 때
-'''{{ triggerEvent.linkText }} has arrived at the {{ location.name }}'''.ko={{ triggerEvent.linkText }}님이 {{ location.name }}에 도착했습니다
-'''{{ triggerEvent.linkText }} has arrived at {{ location.name }}'''.ko={{ triggerEvent.linkText }}님이 {{ location.name }}에 도착했습니다
-'''{{ triggerEvent.linkText }} has left the {{ location.name }}'''.ko={{ triggerEvent.linkText }}님이 {{ location.name }}을(를) 떠났습니다
-'''{{ triggerEvent.linkText }} has left {{ location.name }}'''.ko={{ triggerEvent.linkText }}님이 {{ location.name }}을(를) 떠났습니다
+'''{{ triggerEvent.linkText }} has arrived at the {{ location.name }}'''.ko={{ location.name }}에 {{ triggerEvent.linkText }} 귀가
+'''{{ triggerEvent.linkText }} has arrived at {{ location.name }}'''.ko={{ location.name }}에 {{ triggerEvent.linkText }} 귀가
+'''{{ triggerEvent.linkText }} has left the {{ location.name }}'''.ko={{ location.name }}에서 {{ triggerEvent.linkText }} 외출
+'''{{ triggerEvent.linkText }} has left {{ location.name }}'''.ko={{ location.name }}에서 {{ triggerEvent.linkText }} 외출
 '''Assign a name'''.ko=이름 설정
 '''Choose Modes'''.ko=상태 선택