diff --git a/packages/app/e2e/app.v9.e2e.js b/packages/app/e2e/app.modular.e2e.js
similarity index 99%
rename from packages/app/e2e/app.v9.e2e.js
rename to packages/app/e2e/app.modular.e2e.js
index 413122453b..b4b19fda60 100644
--- a/packages/app/e2e/app.v9.e2e.js
+++ b/packages/app/e2e/app.modular.e2e.js
@@ -15,7 +15,7 @@
  *
  */
 
-describe('v9', function () {
+describe('modular', function () {
   describe('firebase v8 compatibility', function () {
     it('it should allow read the default app from native', function () {
       // app is created in tests app before all hook
diff --git a/packages/app/lib/index.js b/packages/app/lib/index.js
index 6e56f44b43..fbb6697030 100644
--- a/packages/app/lib/index.js
+++ b/packages/app/lib/index.js
@@ -18,7 +18,7 @@
 import { getFirebaseRoot } from './internal/registry/namespace';
 
 export const firebase = getFirebaseRoot();
+export * from './modular/app';
 export { default as utils } from './utils';
-export * from './v9/app';
 
 export default firebase;
diff --git a/packages/app/lib/v9/app.js b/packages/app/lib/modular/app.js
similarity index 78%
rename from packages/app/lib/v9/app.js
rename to packages/app/lib/modular/app.js
index fe42d12982..7a3df0a0d7 100644
--- a/packages/app/lib/v9/app.js
+++ b/packages/app/lib/modular/app.js
@@ -1,5 +1,11 @@
 /* eslint-disable @typescript-eslint/no-unused-vars */
-import { deleteApp as deleteAppV8, getApp, getApps, initializeApp, setLogLevel } from '../internal';
+import {
+  deleteApp as deleteAppCompat,
+  getApp,
+  getApps,
+  initializeApp,
+  setLogLevel,
+} from '../internal';
 
 /**
  * Renders this app unusable and frees the resources of all associated services.
@@ -7,7 +13,7 @@ import { deleteApp as deleteAppV8, getApp, getApps, initializeApp, setLogLevel }
  * @returns
  */
 export function deleteApp(app) {
-  return deleteAppV8(app.name, app._nativeInitialized);
+  return deleteAppCompat(app.name, app._nativeInitialized);
 }
 
 /**