diff --git a/native/account/fullscreen-siwe-panel.react.js b/native/account/fullscreen-siwe-panel.react.js
--- a/native/account/fullscreen-siwe-panel.react.js
+++ b/native/account/fullscreen-siwe-panel.react.js
@@ -22,7 +22,10 @@
   AccountDoesNotExistRouteName,
   RegistrationRouteName,
 } from '../navigation/route-names.js';
-import { unknownErrorAlertDetails } from '../utils/alert-messages.js';
+import {
+  unknownErrorAlertDetails,
+  appOutOfDateAlertDetails,
+} from '../utils/alert-messages.js';
 import Alert from '../utils/alert.js';
 
 type Props = {
@@ -104,6 +107,16 @@
               const messageForException = getMessageForException(e);
               if (messageForException === 'nonce expired') {
                 onNonceExpired('login');
+              } else if (
+                messageForException === 'Unsupported version' ||
+                messageForException === 'client_version_unsupported'
+              ) {
+                Alert.alert(
+                  appOutOfDateAlertDetails.title,
+                  appOutOfDateAlertDetails.message,
+                  [{ text: 'OK', onPress: goBackToPrompt }],
+                  { cancelable: false },
+                );
               } else {
                 throw e;
               }
@@ -148,14 +161,24 @@
             e.message === 'account_does_not_exist'
           ) {
             await onAccountDoesNotExist(result);
-            return;
+          } else if (
+            e instanceof ServerError &&
+            e.message === 'client_version_unsupported'
+          ) {
+            Alert.alert(
+              appOutOfDateAlertDetails.title,
+              appOutOfDateAlertDetails.message,
+              [{ text: 'OK', onPress: goBackToPrompt }],
+              { cancelable: false },
+            );
+          } else {
+            Alert.alert(
+              unknownErrorAlertDetails.title,
+              unknownErrorAlertDetails.message,
+              [{ text: 'OK', onPress: goBackToPrompt }],
+              { cancelable: false },
+            );
           }
-          Alert.alert(
-            unknownErrorAlertDetails.title,
-            unknownErrorAlertDetails.message,
-            [{ text: 'OK', onPress: goBackToPrompt }],
-            { cancelable: false },
-          );
           return;
         }
         dispatch({
diff --git a/native/account/log-in-panel.react.js b/native/account/log-in-panel.react.js
--- a/native/account/log-in-panel.react.js
+++ b/native/account/log-in-panel.react.js
@@ -348,7 +348,10 @@
           [{ text: 'OK', onPress: this.onUnsuccessfulLoginAlertAckowledged }],
           { cancelable: false },
         );
-      } else if (messageForException === 'Unsupported version') {
+      } else if (
+        messageForException === 'Unsupported version' ||
+        messageForException === 'client_version_unsupported'
+      ) {
         Alert.alert(
           appOutOfDateAlertDetails.title,
           appOutOfDateAlertDetails.message,
diff --git a/native/account/registration/existing-ethereum-account.react.js b/native/account/registration/existing-ethereum-account.react.js
--- a/native/account/registration/existing-ethereum-account.react.js
+++ b/native/account/registration/existing-ethereum-account.react.js
@@ -29,7 +29,10 @@
   ScreenParamList,
 } from '../../navigation/route-names.js';
 import { useStyles } from '../../themes/colors.js';
-import { unknownErrorAlertDetails } from '../../utils/alert-messages.js';
+import {
+  unknownErrorAlertDetails,
+  appOutOfDateAlertDetails,
+} from '../../utils/alert-messages.js';
 import Alert from '../../utils/alert.js';
 import { useLegacySIWEServerCall } from '../siwe-hooks.js';
 
@@ -92,6 +95,16 @@
             cancelable: false,
           },
         );
+      } else if (
+        messageForException === 'Unsupported version' ||
+        messageForException === 'client_version_unsupported'
+      ) {
+        Alert.alert(
+          appOutOfDateAlertDetails.title,
+          appOutOfDateAlertDetails.message,
+          [{ text: 'OK', onPress: goBackToHome }],
+          { cancelable: false },
+        );
       } else {
         Alert.alert(
           unknownErrorAlertDetails.title,