Set up Google Mobile Ads Unity Plugin

Page Summary

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• The Google Mobile Ads Unity plugin allows Unity developers to serve Google mobile ads on Android and iOS apps using a C# interface.

• Prerequisites for using the plugin include Unity Editor 2019.4 or higher and specific version requirements for Xcode, iOS, and Android API levels depending on the deployment platform.

• You can import the Mobile Ads for Unity plugin using OpenUPM-CLI, OpenUPM, or by importing a .unitypackage from GitHub.

• Before loading ads, you need to set your Android and iOS AdMob app IDs in the Unity editor settings and initialize the Google Mobile Ads SDK by calling MobileAds.Initialize().

• AdMob offers various ad formats for Unity apps, including Banner, Interstitial, Native, Rewarded, Rewarded interstitial, and App open ads, each with distinct characteristics and use cases.

Select platform: Android Android iOS Unity Flutter

The Google Mobile Ads Unity plugin lets Unity developers serve Google mobile ads on Android and iOS apps without having to write Java or Objective-C code. The plugin provides a C# interface for requesting ads that is used by C# scripts in your Unity project.

This guide is intended for publishers who want to monetize a Unity app.

Prerequisites

• Use Unity Editor 2019.4 or higher.
  • We recommend 2022.2 or higher.
• To deploy to iOS
  • Xcode 16.0 or higher
  • Target iOS 13.3 or higher
  • CocoaPods
• To deploy to Android
  • Minimum Android API level of 23 or higher
  • Target Android API level 35 or higher

• Recommended: Create an AdMob account and register an Android or iOS app

Android API level is set in Project Settings > Player > Android > Other Settings > Other Settings.

Import the Mobile Ads for Unity plugin

OpenUPM-CLI

If you have the OpenUPM CLI installed, you can install the OpenUPM registry with the following command:

openupm add com.google.ads.mobile

Remove .unitypackage plugin assets

If you are migrating from using a .unitypackage to using OpenUPM, you must manually uninstall the assets from the old location. Remove the following directories that were imported from the .unitypackage:

OpenUPM

1. Open the package manager settings by selecting the Unity menu option Edit > Project Settings > Package Manager.

2. Add OpenUPM as a scoped registry to the Package Manager window:

   Name: OpenUPM
   URL: https://package.openupm.com
   Scopes: com.google
   

3. Open the package manager menu by selecting the Unity menu option Window > Package Manager.

4. Set the manager scope drop-down to select My Registries.

   

5. Select the Google Mobile Ads for Unity package from the package list and press Install.

Remove .unitypackage plugin assets

If you are migrating from using a .unitypackage to using OpenUPM, you must manually uninstall the assets from the old location. Remove the following directories that were imported from the .unitypackage:

Set your AdMob app ID

In the Unity editor, select Assets > Google Mobile Ads > Settings from the menu.

Enter your Android and iOS AdMob app ID in each field.

Initialize the SDK

Before loading ads, have your app initialize Google Mobile Ads Unity Plugin by calling MobileAds.Initialize(). This needs to be done only once, ideally at app launch.

Here's an example of how to call MobileAds.Initialize():

MobileAds.Initialize((InitializationStatus initstatus) =>
{
    if (initstatus == null)
    {
        Debug.LogError("Google Mobile Ads initialization failed.");
        return;
    }

    Debug.Log("Google Mobile Ads initialization complete.");

    // Google Mobile Ads events are raised off the Unity Main thread. If you need to
    // access UnityEngine objects after initialization,
    // use MobileAdsEventExecutor.ExecuteInUpdate(). For more information, see:
    // https://developers.google.com/admob/unity/global-settings#raise_ad_events_on_the_unity_main_thread
});
GoogleMobileAdsController.cs

If you're using mediation, wait until the callback occurs before loading ads to verify that all mediation adapters are initialized.

Select an ad format

Google Mobile Ads Unity Plugin is now included in your Unity app when deploying to either the Android or iOS platform. You're now ready to implement an ad. AdMob offers a number of different ad formats, so you can choose the one that makes for the best user experience.

Banner

Banner ad units display rectangular ads that occupy a portion of an app's layout. They can refresh automatically after a set period of time. This means users view a new ad at regular intervals, even if they stay on the same screen in your app. They're also the simplest ad format to implement.

Implement banner ads

Interstitial

Interstitial ad units show full-page ads in your app. Place them at natural breaks and transitions in your app's interface, such as after level completion in a gaming app.

Implement interstitial ads

Native

Native ads are ads where you can customize the way assets such as headlines and calls to action are presented in your apps. By styling the ad yourself, you can create a natural, unobtrusive ad presentations that can add to a rich user experience.

Implement native ads

Rewarded

Rewarded ad units enable users to play games, take surveys, or watch videos to earn in-app rewards, such as coins, extra lives, or points. You can set different rewards for different ad units, and specify the reward values and items the user received.

Implement rewarded ads

Rewarded interstitial

Rewarded interstitial is a new type of incentivized ad format that lets you offer rewards, such as coins or extra lives, for ads that appear automatically during natural app transitions.

Unlike rewarded ads, users aren't required to opt in to view a rewarded interstitial.

Instead of the opt-in prompt in rewarded ads, rewarded interstitials require an intro screen that announces the reward and gives users a chance to opt out if they want to do so.

Implement rewarded interstitial ads

App open

App open is an ad format that appears when users open or switch back to your app. The ad overlays the loading screen.

Implement app open ads