diff --git a/lib/servicios/servicio_anuncios.dart b/lib/servicios/servicio_anuncios.dart
index 669400b..c6f1067 100644
--- a/lib/servicios/servicio_anuncios.dart
+++ b/lib/servicios/servicio_anuncios.dart
@@ -18,12 +18,13 @@ const _interstitialAdUnitIdReal = 'ca-app-pub-6038935671414339/4189478248';
 /// TESTING-PHASE SWITCH. While `true`, release builds serve Google's official
 /// TEST ad units instead of the real ones, so none of the closed-testing
 /// human testers can generate invalid traffic against the AdMob account
-/// (they cannot be registered as AdMob test devices). Flip to `false` for
-/// the production release — that is the ONLY change needed to start serving
-/// real ads. This does NOT affect the AdMob application id in
-/// `AndroidManifest.xml`, which stays real in every build (it only
-/// initializes the SDK and carries none of the click risk).
-const usarAnunciosDePruebaEnRelease = true;
+/// (they cannot be registered as AdMob test devices). Turned `false` for the
+/// first production release (1.3.3+166): release builds now serve the real
+/// units. Debug and profile builds keep the test ids regardless. This does
+/// NOT affect the AdMob application id in `AndroidManifest.xml`, which stays
+/// real in every build (it only initializes the SDK and carries none of the
+/// click risk).
+const usarAnunciosDePruebaEnRelease = false;
 
 /// Real id in release builds only, and only once [usarAnunciosDePruebaEnRelease]
 /// is flipped to `false`; test id everywhere else (debug/profile, including
diff --git a/test/servicios/servicio_anuncios_test.dart b/test/servicios/servicio_anuncios_test.dart
index 0c21790..86c0f09 100644
--- a/test/servicios/servicio_anuncios_test.dart
+++ b/test/servicios/servicio_anuncios_test.dart
@@ -162,9 +162,15 @@ void main() {
   });
 
   group('usarAnunciosDePruebaEnRelease — interruptor de fase de pruebas', () {
-    test('mientras esta en true, bannerAdUnitId e interstitialAdUnitId son los '
-        'ids oficiales de prueba de Google', () {
-      expect(usarAnunciosDePruebaEnRelease, isTrue);
+    test('en produccion el interruptor esta apagado: las builds release '
+        'sirven los anuncios reales', () {
+      // Flipped for the first production release (1.3.3+166). Re-enabling it
+      // would silently ship Google's "Test Ad" banners and earn nothing.
+      expect(usarAnunciosDePruebaEnRelease, isFalse);
+    });
+
+    test('fuera de release (debug, profile y pruebas) se usan siempre los ids '
+        'oficiales de prueba de Google', () {
       expect(bannerAdUnitId, equals('ca-app-pub-3940256099942544/6300978111'));
       expect(
         interstitialAdUnitId,