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App Open Ads

  • App Open Ads monetize app loading screens by displaying closable ads when the app enters the foreground.

  • Implementation involves creating an AppOpenAdManager to handle ad loading and display, triggered by foreground events.

  • Use test ads during development with the provided test ad unit ID and replace it with your ad unit ID before publishing to avoid account suspension.

  • Ensure ad validity by checking for expiration and integrating a loading screen for cold starts to provide a smoother user experience.

  • Handle ad presentation events through the GADFullScreenContentDelegate to manage ad display, dismissals, and potential errors.
Select platform: Android iOS Unity Flutter

This guide is intended for publishers integrating app open ads.

App open ads are a special ad format intended for publishers wishing to monetize their app load screens. App open ads can be closed by your users at any time. App open ads can be shown when users bring your app to the foreground.

App open ads automatically show a small branding area so users know they're in your app. Here is an example of what an app open ad looks like:

At a high level, here are the steps required to implement app open ads:

  1. Create a manager class that loads an ad before you need to display it.
  2. Show the add during app foregrounding events.
  3. Handle presentation callbacks.

Prerequisites

Always test with test ads

When building and testing your apps, make sure you use test ads rather than live, production ads. Failure to do so can lead to suspension of your account.

The easiest way to load test ads is to use our dedicated test ad unit ID for app open ads:

ca-app-pub-3940256099942544/5575463023

It's been specially configured to return test ads for every request, and you're free to use it in your own apps while coding, testing, and debugging. Just make sure you replace it with your own ad unit ID before publishing your app.

For more information about how the Mobile Ads SDK's test ads work, see Test Ads.

Implement a manager class

Your ad should show quickly, so it's best to load your ad before you need to display it. That way, you'll have an ad ready to go as soon as the user enters your app. Implement a manager class to make ad requests ahead of when you need to show the ad.

Create a new singleton class called AppOpenAdManager:

Swift

classAppOpenAdManager:NSObject{
/// The app open ad.
varappOpenAd:AppOpenAd?
/// Maintains a reference to the delegate.
weakvarappOpenAdManagerDelegate:AppOpenAdManagerDelegate?
/// Keeps track of if an app open ad is loading.
varisLoadingAd=false
/// Keeps track of if an app open ad is showing.
varisShowingAd=false
/// Keeps track of the time when an app open ad was loaded to discard expired ad.
varloadTime:Date?
/// For more interval details, see https://support.google.com/admob/answer/9341964
lettimeoutInterval:TimeInterval=4*3_600
staticletshared=AppOpenAdManager()

Objective-C

@interface AppOpenAdManager()
/// The app open ad.
@property(nonatomic,strong,nullable)GADAppOpenAd*appOpenAd;
/// Keeps track of if an app open ad is loading.
@property(nonatomic,assign)BOOLisLoadingAd;
/// Keeps track of if an app open ad is showing.
@property(nonatomic,assign)BOOLisShowingAd;
/// Keeps track of the time when an app open ad was loaded to discard expired ad.
@property(nonatomic,strong,nullable)NSDate*loadTime;
@end
/// For more interval details, see https://support.google.com/admob/answer/9341964
staticconstNSIntegerkTimeoutInterval=4;
@implementation AppOpenAdManager
+ (nonnullAppOpenAdManager*)sharedInstance{
staticAppOpenAdManager*instance=nil;
staticdispatch_once_tonceToken;
dispatch_once(&onceToken,^{
instance=[[AppOpenAdManageralloc]init];
});
returninstance;
}

And implement its AppOpenAdManagerDelegate protocol:

Swift

protocolAppOpenAdManagerDelegate:AnyObject{
/// Method to be invoked when an app open ad life cycle is complete (i.e. dismissed or fails to
/// show).
funcappOpenAdManagerAdDidComplete(_appOpenAdManager:AppOpenAdManager)
}

Objective-C

@protocol AppOpenAdManagerDelegate <NSObject>
/// Method to be invoked when an app open ad life cycle is complete (i.e. dismissed or fails to
/// show).
-(void)adDidComplete;
@end

Load an ad

The next step is to load an app open ad:

Swift

funcloadAd()async{
// Do not load ad if there is an unused ad or one is already loading.
ifisLoadingAd||isAdAvailable(){
return
}
isLoadingAd=true
do{
appOpenAd=tryawaitAppOpenAd.load(
with:"ca-app-pub-3940256099942544/5575463023",request:Request())
appOpenAd?.fullScreenContentDelegate=self
loadTime=Date()
}catch{
print("App open ad failed to load with error: \(error.localizedDescription)")
appOpenAd=nil
loadTime=nil
}
isLoadingAd=false
}

Objective-C

- (void)loadAd{
// Do not load ad if there is an unused ad or one is already loading.
if([selfisAdAvailable]||self.isLoadingAd){
return;
}
self.isLoadingAd=YES;
[GADAppOpenAdloadWithAdUnitID:@"ca-app-pub-3940256099942544/5575463023"
request:[GADRequestrequest]
completionHandler:^(GADAppOpenAd*_NullableappOpenAd,NSError*_Nullableerror){
self.isLoadingAd=NO;
if(error){
NSLog(@"App open ad failed to load with error: %@",error);
self.appOpenAd=nil;
self.loadTime=nil;
return;
}
self.appOpenAd=appOpenAd;
self.appOpenAd.fullScreenContentDelegate=self;
self.loadTime=[NSDatedate];
}];
}

Show an ad

The next step is to show an app open ad. If no ad is available, attempt to load a new ad.

Swift

funcshowAdIfAvailable(){
// If the app open ad is already showing, do not show the ad again.
ifisShowingAd{
returnprint("App open ad is already showing.")
}
// If the app open ad is not available yet but is supposed to show, load
// a new ad.
if!isAdAvailable(){
print("App open ad is not ready yet.")
// The app open ad is considered to be complete in this example.
appOpenAdManagerDelegate?.appOpenAdManagerAdDidComplete(self)
// Load a new ad.
return
}
ifletappOpenAd{
appOpenAd.present(from:nil)
isShowingAd=true
}
}

Objective-C

- (void)showAdIfAvailable{
// If the app open ad is already showing, do not show the ad again.
if(self.isShowingAd){
NSLog(@"App open ad is already showing.");
return;
}
// If the app open ad is not available yet but is supposed to show, load
// a new ad.
if(![selfisAdAvailable]){
NSLog(@"App open ad is not ready yet.");
// The app open ad is considered to be complete in this example.
[selfadDidComplete];
// Load a new ad.
return;
}
[self.appOpenAdpresentFromRootViewController:nil];
self.isShowingAd=YES;
}

Show the ad during app foregrounding events

When the application becomes active, call showAdIfAvailable() to show an ad if one is available, or loads a new one.

Swift

funcapplicationDidBecomeActive(_application:UIApplication){
// Show the app open ad when the app is foregrounded.
AppOpenAdManager.shared.showAdIfAvailable()
}

Objective-C

- (void) applicationDidBecomeActive:(UIApplication*)application{
// Show the app open ad when the app is foregrounded.
[AppOpenAdManager.sharedInstanceshowAdIfAvailable];
}

Handle presentation callbacks

To receive notifications for presentation events, you must assign the GADFullScreenContentDelegate to the fullScreenContentDelegate`s property of the returned ad:

Swift

appOpenAd?.fullScreenContentDelegate=self

Objective-C

self.appOpenAd.fullScreenContentDelegate=self;

In particular, you'll want to request the next app open ad once the first one finishes presenting. The following code shows how to implement the protocol in your AppOpenAdManager file:

Swift

funcadDidRecordImpression(_ad:FullScreenPresentingAd){
print("App open ad recorded an impression.")
}
funcadDidRecordClick(_ad:FullScreenPresentingAd){
print("App open ad recorded a click.")
}
funcadWillDismissFullScreenContent(_ad:FullScreenPresentingAd){
print("App open ad will be dismissed.")
}
funcadWillPresentFullScreenContent(_ad:FullScreenPresentingAd){
print("App open ad will be presented.")
}
funcadDidDismissFullScreenContent(_ad:FullScreenPresentingAd){
print("App open ad was dismissed.")
appOpenAd=nil
isShowingAd=false
appOpenAdManagerDelegate?.appOpenAdManagerAdDidComplete(self)
Task{
awaitloadAd()
}
}
funcad(
_ad:FullScreenPresentingAd,
didFailToPresentFullScreenContentWithErrorerror:Error
){
print("App open ad failed to present with error: \(error.localizedDescription)")
appOpenAd=nil
isShowingAd=false
appOpenAdManagerDelegate?.appOpenAdManagerAdDidComplete(self)
Task{
awaitloadAd()
}
}

Objective-C

- (void)adDidRecordImpression:(nonnullid<GADFullScreenPresentingAd>)ad{
NSLog(@"App open ad recorded an impression.");
}
- (void)adDidRecordClick:(nonnullid<GADFullScreenPresentingAd>)ad{
NSLog(@"App open ad recorded a click.");
}
- (void)adWillPresentFullScreenContent:(nonnullid<GADFullScreenPresentingAd>)ad{
NSLog(@"App open ad will be presented.");
}
- (void)adWillDismissFullScreenContent:(nonnullid<GADFullScreenPresentingAd>)ad{
NSLog(@"App open ad will be dismissed.");
}
- (void)adDidDismissFullScreenContent:(nonnullid<GADFullScreenPresentingAd>)ad{
NSLog(@"App open ad was dismissed.");
self.appOpenAd=nil;
self.isShowingAd=NO;
[selfadDidComplete];
[selfloadAd];
}
- (void)ad:(nonnullid<GADFullScreenPresentingAd>)ad
didFailToPresentFullScreenContentWithError:(nonnullNSError*)error{
NSLog(@"App open ad failed to present with error: %@",error.localizedDescription);
self.appOpenAd=nil;
self.isShowingAd=NO;
[selfadDidComplete];
[selfloadAd];
}

Consider ad expiration

To make sure you don't show an expired ad, you can add a method to the app delegate that checks the elapsed time since your ad reference loaded.

In your AppOpenAdManager add a Date property called loadTime and set the property when your ad loads. You can then add a method that returns true if less than a certain number of hours have passed since your ad loaded. Make sure you check the validity of your ad reference before you try to show the ad.

Swift

privatefuncwasLoadTimeLessThanNHoursAgo(timeoutInterval:TimeInterval)->Bool{
// Check if ad was loaded more than n hours ago.
ifletloadTime=loadTime{
returnDate().timeIntervalSince(loadTime) < timeoutInterval
}
returnfalse
}
privatefuncisAdAvailable()->Bool{
// Check if ad exists and can be shown.
returnappOpenAd!=nil && wasLoadTimeLessThanNHoursAgo(timeoutInterval:timeoutInterval)
}

Objective-C

- (BOOL)wasLoadTimeLessThanNHoursAgo:(int)n{
// Check if ad was loaded more than n hours ago.
NSDate*now=[NSDatedate];
NSTimeIntervaltimeIntervalBetweenNowAndLoadTime=[nowtimeIntervalSinceDate:self.loadTime];
doublesecondsPerHour=3600.0;
doubleintervalInHours=timeIntervalBetweenNowAndLoadTime/secondsPerHour;
returnintervalInHours < n;
}
- (BOOL)isAdAvailable{
// Check if ad exists and can be shown.
return_appOpenAd && [selfwasLoadTimeLessThanNHoursAgo:kTimeoutInterval];
}

Cold starts and loading screens

The documentation assumes that you only show app open ads when users foreground your app when it is suspended in memory. "Cold starts" occur when your app is launched but was not previously suspended in memory.

An example of a cold start is when a user opens your app for the first time. With cold starts, you won't have a previously loaded app open ad that's ready to be shown right away. The delay between when you request an ad and receive an ad back can create a situation where users are able to briefly use your app before being surprised by an out of context ad. This should be avoided because it is a bad user experience.

The preferred way to use app open ads on cold starts is to use a loading screen to load your game or app assets, and to only show the ad from the loading screen. If your app has completed loading and has sent the user to the main content of your app, don't show the ad.

Best practices

Google built app open ads to help you monetize your app's loading screen, but it's important to keep best practices in mind so that your users enjoy using your app. Make sure to:

  • Wait to show your first app open ad until after your users have used your app a few times.
  • Show app open ads during times when your users would otherwise be waiting for your app to load.
  • If you have a loading screen under the app open ad, and your loading screen completes loading before the ad is dismissed, you may want to dismiss your loading screen in the adDidDismissFullScreenContent method.

Complete example on GitHub

Swift Objective-C

Next steps

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Last updated 2025年10月15日 UTC.