diff --git a/packages/mobile-app/app/(tabs)/_layout.tsx b/packages/mobile-app/app/(tabs)/_layout.tsx
index 3a8fdbb..9a31464 100644
--- a/packages/mobile-app/app/(tabs)/_layout.tsx
+++ b/packages/mobile-app/app/(tabs)/_layout.tsx
@@ -21,6 +21,7 @@ export default function Layout() {
       <Tabs.Screen
         name="balances"
         options={{
+          title: "Balances",
           headerShown: false,
           tabBarIcon: ({ focused, color, size }) => (
             <Ionicons
diff --git a/packages/mobile-app/data/facades/index.ts b/packages/mobile-app/data/facades/index.ts
index 4e9b85b..6459062 100644
--- a/packages/mobile-app/data/facades/index.ts
+++ b/packages/mobile-app/data/facades/index.ts
@@ -7,7 +7,15 @@ import { chainHandlers } from "./chain/oreowalletHandlers";
 import { chainDemoHandlers } from "./chain/demoHandlers";
 import { contactsDemoHandlers } from "./contacts/demoHandlers";
 
-const DEMO_API = Boolean(process.env.EXPO_PUBLIC_DEMO_API ?? true);
+const DEMO_API = (() => {
+  const val = (process.env.EXPO_PUBLIC_DEMO_API ?? "true").toLowerCase().trim();
+
+  if (val !== "true" && val !== "false") {
+    throw new Error(`Invalid value for EXPO_PUBLIC_DEMO_API: ${val}`);
+  }
+
+  return val === "true";
+})();
 
 export const facadeContext = createFacadeContext(
   DEMO_API