diff --git a/packages/levelplay/README.md b/packages/levelplay/README.md
index 871268b..5275a05 100644
--- a/packages/levelplay/README.md
+++ b/packages/levelplay/README.md
@@ -11,7 +11,7 @@ for React Native.
 - 🎯 LevelPlay (ironSource) mediation — interstitial and rewarded video
 - ⚡️ [Nitro Modules](https://nitro.margelo.com/) — direct JSI bindings, no bridge overhead
 - 📱 iOS & Android
-- 🧩 Expo config plugin included — adds LevelPlay's Maven repo automatically
+- 🧩 Expo CNG supported
 - 🔒 Fully typed API
 
 ## Installation
diff --git a/packages/liftoff/README.md b/packages/liftoff/README.md
index 87eec53..b0def9e 100644
--- a/packages/liftoff/README.md
+++ b/packages/liftoff/README.md
@@ -11,7 +11,7 @@ Native.
 - 🎯 Liftoff Monetize (Vungle) — interstitial and rewarded video
 - ⚡️ [Nitro Modules](https://nitro.margelo.com/) — direct JSI bindings, no bridge overhead
 - 📱 iOS & Android
-- 🧩 Works with Expo out of the box — no config plugin needed
+- 🧩 Expo CNG supported
 - 🔒 Fully typed API
 
 ## Installation
diff --git a/packages/pangle/README.md b/packages/pangle/README.md
index c2c9fb8..9b01f80 100644
--- a/packages/pangle/README.md
+++ b/packages/pangle/README.md
@@ -10,7 +10,7 @@ Pangle — interstitial and rewarded video ads for React Native.
 - 🎯 Pangle — interstitial and rewarded video
 - ⚡️ [Nitro Modules](https://nitro.margelo.com/) — direct JSI bindings, no bridge overhead
 - 📱 iOS & Android
-- 🧩 Expo config plugin included — adds Pangle's Maven repo automatically
+- 🧩 Expo CNG supported
 - 🔒 Fully typed API
 
 ## Installation
diff --git a/packages/ump/README.md b/packages/ump/README.md
index afa40a0..d0643ef 100644
--- a/packages/ump/README.md
+++ b/packages/ump/README.md
@@ -10,11 +10,18 @@ Google User Messaging Platform (UMP) — GDPR/CCPA consent for React Native.
 - 🔐 Google UMP — GDPR/CCPA consent gathering and the privacy options form
 - ⚡️ [Nitro Modules](https://nitro.margelo.com/) — direct JSI bindings, no bridge overhead
 - 📱 iOS & Android
-- 🧩 Works with Expo out of the box — no config plugin needed
+- 🧩 Expo CNG supported
 - 🔒 Fully typed API
 
 ## Installation
 
+The UMP SDK refuses to run without a Google-issued AdMob App ID, even if you
+don't use AdMob/Google Mobile Ads — omitting it throws
+`The UMP SDK requires a valid application ID`. Don't have an AdMob app?
+Create one for free in the [AdMob console](https://apps.admob.com/), or use
+Google's public test IDs while developing — see the [`example`](example)
+app for both platforms' values.
+
 ### React Native
 
 ```sh
@@ -22,19 +29,6 @@ npm install @react-native-ads/ump react-native-nitro-modules
 cd ios && pod install
 ```
 
-### Expo
-
-```sh
-npx expo install @react-native-ads/ump react-native-nitro-modules
-npx expo prebuild
-```
-
-### Required native setup
-
-The UMP SDK refuses to run without a Google-issued AdMob App ID, even if you
-don't use AdMob/Google Mobile Ads — omitting this throws
-`The UMP SDK requires a valid application ID`.
-
 Android — add to `android/app/src/main/AndroidManifest.xml`:
 
 ```xml
@@ -50,11 +44,34 @@ iOS — add to `Info.plist`:
 <string>YOUR_ADMOB_APP_ID</string>
 ```
 
-Don't have an AdMob app? Create one for free in the
-[AdMob console](https://apps.admob.com/) to get an App ID, or use Google's
-public test IDs while developing (`ca-app-pub-3940256099942544~3347511713`
-on Android, `ca-app-pub-3940256099942544~1458002511` on iOS — see the
-[`example`](example) app).
+### Expo
+
+```sh
+npx expo install @react-native-ads/ump react-native-nitro-modules
+```
+
+Enable the bundled config plugin — it wires up the App ID on both platforms
+for you:
+
+```json
+{
+  "expo": {
+    "plugins": [
+      [
+        "@react-native-ads/ump",
+        {
+          "androidAppId": "YOUR_ADMOB_APP_ID",
+          "iosAppId": "YOUR_ADMOB_APP_ID"
+        }
+      ]
+    ]
+  }
+}
+```
+
+```sh
+npx expo prebuild
+```
 
 ## API
 
diff --git a/packages/ump/app.plugin.js b/packages/ump/app.plugin.js
new file mode 100644
index 0000000..ac7c0e8
--- /dev/null
+++ b/packages/ump/app.plugin.js
@@ -0,0 +1,56 @@
+const {
+  AndroidConfig,
+  createRunOncePlugin,
+  withAndroidManifest,
+  withInfoPlist,
+} = require('expo/config-plugins');
+const packageJson = require('./package.json');
+
+// The UMP SDK refuses to run without a Google-issued AdMob App ID, even if
+// the app doesn't use AdMob/Google Mobile Ads — see the package README.
+
+function withUMPAndroidAppId(config, androidAppId) {
+  return withAndroidManifest(config, (modConfig) => {
+    const mainApplication = AndroidConfig.Manifest.getMainApplicationOrThrow(
+      modConfig.modResults
+    );
+    AndroidConfig.Manifest.addMetaDataItemToMainApplication(
+      mainApplication,
+      'com.google.android.gms.ads.APPLICATION_ID',
+      androidAppId
+    );
+    return modConfig;
+  });
+}
+
+function withUMPIosAppId(config, iosAppId) {
+  return withInfoPlist(config, (modConfig) => {
+    modConfig.modResults.GADApplicationIdentifier = iosAppId;
+    return modConfig;
+  });
+}
+
+function withUMPAds(config, { androidAppId, iosAppId } = {}) {
+  if (!androidAppId || !iosAppId) {
+    throw new Error(
+      "@react-native-ads/ump config plugin requires both 'androidAppId' and " +
+        "'iosAppId' — the UMP SDK requires a Google-issued AdMob App ID to " +
+        'run. Pass them in app.json/app.config, e.g.:\n' +
+        '["@react-native-ads/ump", { "androidAppId": "ca-app-pub-XXXXXXXXXXXXXXXX~XXXXXXXXXX", "iosAppId": "ca-app-pub-XXXXXXXXXXXXXXXX~XXXXXXXXXX" }]'
+    );
+  }
+
+  config = withUMPAndroidAppId(config, androidAppId);
+  config = withUMPIosAppId(config, iosAppId);
+  return config;
+}
+
+const plugin = createRunOncePlugin(
+  withUMPAds,
+  packageJson.name,
+  packageJson.version
+);
+
+module.exports = plugin;
+module.exports.default = plugin;
+module.exports.withUMPAds = withUMPAds;
diff --git a/packages/ump/package.json b/packages/ump/package.json
index fb29ba2..f597501 100644
--- a/packages/ump/package.json
+++ b/packages/ump/package.json
@@ -10,6 +10,7 @@
       "types": "./lib/typescript/src/index.d.ts",
       "default": "./lib/module/index.js"
     },
+    "./app.plugin.js": "./app.plugin.js",
     "./package.json": "./package.json"
   },
   "files": [
@@ -22,6 +23,7 @@
     "nitro.json",
     "*.podspec",
     "react-native.config.js",
+    "app.plugin.js",
     "!ios/build",
     "!android/build",
     "!android/gradle",
@@ -58,6 +60,7 @@
     "user-messaging-platform",
     "admob",
     "google-mobile-ads",
+    "expo",
     "ios",
     "android"
   ],
@@ -85,16 +88,23 @@
     "@babel/preset-typescript": "^7.27.1",
     "@types/react": "^19.2.0",
     "babel-jest": "^29.7.0",
+    "expo": "*",
     "nitrogen": "0.29.6",
     "react": "19.2.3",
     "react-native": "0.85.0",
     "react-native-nitro-modules": "^0.29.6"
   },
   "peerDependencies": {
+    "expo": "*",
     "react": "*",
     "react-native": "*",
     "react-native-nitro-modules": "^0.29.6"
   },
+  "peerDependenciesMeta": {
+    "expo": {
+      "optional": true
+    }
+  },
   "workspaces": [
     "example"
   ],
diff --git a/packages/unity/README.md b/packages/unity/README.md
index 5b80527..77a3efd 100644
--- a/packages/unity/README.md
+++ b/packages/unity/README.md
@@ -10,7 +10,7 @@ Unity Ads — interstitial and rewarded video ads for React Native.
 - 🎮 Unity Ads — interstitial and rewarded video
 - ⚡️ [Nitro Modules](https://nitro.margelo.com/) — direct JSI bindings, no bridge overhead
 - 📱 iOS & Android
-- 🧩 Works with Expo out of the box — no config plugin needed
+- 🧩 Expo CNG supported
 - 🔒 Fully typed API
 
 ## Installation
diff --git a/yarn.lock b/yarn.lock
index b7851ab..4b89875 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -3391,14 +3391,19 @@ __metadata:
     "@iabtcf/core": "npm:^1.5.6"
     "@types/react": "npm:^19.2.0"
     babel-jest: "npm:^29.7.0"
+    expo: "npm:*"
     nitrogen: "npm:0.29.6"
     react: "npm:19.2.3"
     react-native: "npm:0.85.0"
     react-native-nitro-modules: "npm:^0.29.6"
   peerDependencies:
+    expo: "*"
     react: "*"
     react-native: "*"
     react-native-nitro-modules: ^0.29.6
+  peerDependenciesMeta:
+    expo:
+      optional: true
   languageName: unknown
   linkType: soft