diff --git a/components/settings.js b/components/settings.js
index 6680fa0..019e8f2 100644
--- a/components/settings.js
+++ b/components/settings.js
@@ -102,7 +102,7 @@ export default function Setting(props) {
                 textAlignVertical: "center",
               }}
             >
-              内部バージョン: 4.4.2.2
+              内部バージョン: 4.4.2.3
             </Text>
             <View style={{ flex: 1 }} />
           </View>
diff --git a/components/発車時刻表/LED_vidion.js b/components/発車時刻表/LED_vidion.js
index 6314246..a3d86ce 100644
--- a/components/発車時刻表/LED_vidion.js
+++ b/components/発車時刻表/LED_vidion.js
@@ -239,7 +239,7 @@ export default function LED_vision(props) {
                           })() +
                           " " +
                           train.trainName +
-                          (!train.trainNumDistance
+                          (train.trainNumDistance != undefined
                             ? ""
                             : parseInt(
                                 d.train.replace("M", "").replace("D", "")
diff --git a/menu.js b/menu.js
index 7539815..3f9a984 100644
--- a/menu.js
+++ b/menu.js
@@ -78,11 +78,7 @@ export default function Menu(props) {
   }, []);
 
   const [originalStationList, setOriginalStationList] = useState();
-  useEffect(() => {
-    getStationList().then((stationList) => {
-      setOriginalStationList(stationList);
-    });
-  }, []);
+  useEffect(() => getStationList().then(setOriginalStationList), []);
 
   const [stationName, setStationName] = useState(undefined);
   const [currentStation, setCurrentStation] = useState(undefined);
@@ -147,7 +143,7 @@ export default function Menu(props) {
     )
       .then((response) => response.text())
       .then((data) => setDelayData(data !== "" ? data.split("^") : null))
-      .then(() => LayoutAnimation.easeInEaseOut())
+      .then(LayoutAnimation.easeInEaseOut)
       .then(() => setGetTime(new Date()))
       .finally(() => setLoadingDelayData(false));
   }, [loadingDelayData]);
@@ -379,6 +375,20 @@ export default function Menu(props) {
             旅行ツアー
           </TicketBox>
         </View>
+        <TextBox
+          backgroundColor="#0099CC"
+          flex={1}
+          onPressButton={() =>
+            Linking.openURL("https://www.jr-eki.com/smart-eki/index.html")
+          }
+        >
+          <Text style={{ color: "white", fontWeight: "bold", fontSize: 20 }}>
+            スマートえきちゃん
+          </Text>
+          <Text style={{ color: "white", fontSize: 18 }}>
+            JR四国のチケットレススマホアプリです。
+          </Text>
+        </TextBox>
         <TextBox
           backgroundColor="#0099CC"
           flex={1}