diff --git a/app/src/app/(account)/account-settings.tsx b/app/src/app/(account)/account-settings.tsx
index bce3757..0f98504 100644
--- a/app/src/app/(account)/account-settings.tsx
+++ b/app/src/app/(account)/account-settings.tsx
@@ -11,13 +11,25 @@ import PrimaryButton from "@components/ui/PrimaryButton";
 
 export default function AccountSettings() {
   const router = useRouter();
-  const { user, username, setUsername } = useSession();
-  const { originalUsername, loading, handleUpdateProfile } = useAccountSettings();
+  const { user, setUsername: setUsernameContext } = useSession();
+  const {
+    username,
+    setUsername: setUsernameLocal,
+    originalUsername,
+    loading,
+    handleUpdateProfile,
+  } = useAccountSettings();
 
   function prevCallback() {
     router.replace("/(tabs)/account");
   }
 
+  // Keep local draft in sync and also push to session context
+  const handleUsernameChange = (value: string) => {
+    setUsernameLocal(value); // updates the input instantly
+    setUsernameContext(value); // persist draft to context (and DB via SessionContext)
+  };
+
   useFocusEffect(
     React.useCallback(() => {
       const backAction = () => {
@@ -45,7 +57,7 @@ export default function AccountSettings() {
               <OutlinedTextInput
                 label="Username"
                 value={username || ""}
-                onChangeText={setUsername}
+                onChangeText={handleUsernameChange}
                 testID="username"
               />
             </View>
diff --git a/app/src/app/(auth)/sign-up.tsx b/app/src/app/(auth)/sign-up.tsx
index 433c9b2..3252ac4 100644
--- a/app/src/app/(auth)/sign-up.tsx
+++ b/app/src/app/(auth)/sign-up.tsx
@@ -9,6 +9,7 @@ import PrimaryButton from "@components/ui/PrimaryButton";
 
 import { supabase } from "@utils/supabase";
 import { createUserProfile, checkUsernameExists } from "@services/account-service";
+import { useSession } from "@contexts/SessionContext";
 
 const back = require("@assets/left-arrow.png");
 
@@ -24,6 +25,7 @@ const signUpSchema = z.object({
 
 export default function SignUp() {
   const router = useRouter();
+  const { setUsername } = useSession();
 
   const [form, setForm] = useState({ username: "", email: "", password: "", isCommuter: false });
   const [loading, setLoading] = useState(false);
@@ -74,6 +76,8 @@ export default function SignUp() {
 
     try {
       await createUserProfile(user.id, form.username, form.isCommuter);
+      // Update global session context so other components can see the new username right away
+      setUsername(form.username);
       Alert.alert("Sign-up successful!");
     } catch (err) {
       let errorMessage = "An unknown error occurred.";
diff --git a/app/src/app/(tabs)/account.tsx b/app/src/app/(tabs)/account.tsx
index 0fb7e0e..c89bee6 100644
--- a/app/src/app/(tabs)/account.tsx
+++ b/app/src/app/(tabs)/account.tsx
@@ -1,5 +1,6 @@
 import React from "react";
 import { Text, SafeAreaView, View, Alert, ScrollView } from "react-native";
+import Constants from "expo-constants";
 
 import { logoutUser } from "@services/account-service";
 import { useSession } from "@contexts/SessionContext";
@@ -20,6 +21,9 @@ export default function Account() {
   const { user, username } = useSession();
   const { userRole, points, joinedDate, loading } = useAccountDetails(user?.id);
 
+  const appVersion =
+    Constants.expoConfig?.version ?? (Constants?.manifest as any)?.version ?? "dev";
+
   async function handleLogout() {
     try {
       await logoutUser();
@@ -96,6 +100,7 @@ export default function Account() {
             )}
           </View>
           <SecondaryButton label="Log out" onPress={handleLogoutPress} />
+          <Text className="text-gray-500 text-center mt-4">Version {appVersion}</Text>
         </View>
       </ScrollView>
     </SafeAreaView>