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AdMob

How to Set Up AdMob for the First Time (Steps + Screenshots)

Rashmita Behera
Rashmita Behera
Jul 23, 2026
How to Set Up AdMob for the First Time (Steps + Screenshots)

Google AdMob is Google’s mobile advertising platform that allows app developers to earn money by displaying targeted advertisements within their mobile applications. It acts as a bridge between developers and advertisers, serving ads to users and paying the developer based on impressions or clicks.

Also check: Best AdMob Alternatives

In this article, we will start from basics to understand how to setup AdMob account for the first time, we have divided this into multiple parts so that you can navigate better.

By the end of this guide, you’ll know how to:

  • Create an AdMob account
  • Connect your app
  • Generate ad units
  • Install the SDK
  • Test ads
  • Launch monetization safely

No prior experience is required.

Part 1

Creating Your AdMob Account

What is Google AdMob?

Google AdMob is Google’s mobile app monetization platform. It allows developers to earn revenue by displaying advertisements inside Android and iOS applications.

Unlike Google AdSense, which serves ads on websites, AdMob is designed specifically for mobile apps.

It supports several ad formats, including:

Ad FormatBest For
Banner AdsAlways-visible placements
Interstitial AdsBetween screens or levels
Rewarded AdsGames and premium content
Rewarded InterstitialHigh-engagement experiences
Native AdsApps with custom UI
App Open AdsDuring app launch

Behind the scenes, AdMob runs an auction for every ad impression. Advertisers bid to show ads to your users, and the highest-quality eligible ad wins.

Why Developers Choose AdMob

Developers choose AdMob because it offers:

  • Global advertiser demand
  • Easy integration
  • No upfront cost
  • Support for Android and iOS
  • Mediation with third-party ad networks
  • Detailed reporting
  • Automatic optimization using machine learning

For many indie developers, it’s the first monetization platform they implement before expanding into mediation or hybrid monetization strategies.

Who Should Use AdMob?

AdMob works well for:

  • Mobile games
  • Utility apps
  • Productivity apps
  • Education apps
  • Finance apps
  • Health apps
  • Lifestyle apps

It’s especially suitable if your app receives at least a few thousand monthly users, though many developers integrate it even before launch to ensure monetization is ready as traffic grows.

Before You Begin

Before creating an AdMob account, make sure you have:

✅ A Google Account

✅ An Android or iOS app

✅ Access to Google Play Console or App Store Connect

✅ A website or privacy policy

✅ A bank account capable of receiving payments

✅ A valid tax identity (required before payments)

Step 1: Create Your Google Account

If you already use Gmail, Google Play Console, Firebase, or Google Analytics, you can use the same account for AdMob.

Otherwise:

  1. Visit the Google Account creation page.
  2. Create a new account.
  3. Enable two-factor authentication.
  4. Keep recovery information up to date.

Using a dedicated business account instead of a personal Gmail account is generally recommended.

Step 2: Visit Google AdMob

Official Link: https://admob.google.com/

Click Get Started.

Step 3: Accept the Terms

You’ll be asked to review and accept:

  • Google AdMob Terms
  • Google Payments Terms
  • Privacy requirements

Take a moment to review these documents, especially if you’re publishing apps in regions with strict privacy regulations like the EU or California.

Step 4: Select Your Country

Choose the country where your business or tax entity is registered.

This selection affects:

  • Currency
  • Payment methods
  • Tax forms
  • Available payment thresholds

Important: You can’t change this later, so choose carefully.

Step 5: Choose Your Time Zone

Select the reporting time zone that best matches your business operations.

Changing your reporting time zone after setup is either restricted or can complicate historical reporting, so it’s worth getting right from the start.

Step 6: Create Your Publisher Profile

AdMob will ask for details such as:

  • Business name
  • Contact email
  • Website (optional but recommended)
  • Payment contact
  • Language preferences

Keep this information consistent with your Google Play Console account to avoid verification issues later.

Step 7: Explore the Dashboard

Once your account is created, you’ll land on the AdMob dashboard.

Key sections include:

SectionPurpose
AppsManage your mobile applications
Ad UnitsCreate banner, interstitial, rewarded ads
MediationConnect additional ad networks
ReportsRevenue, impressions, eCPM, fill rate
Policy CenterCompliance issues
Blocking ControlsBlock specific ad categories or advertisers

Spend a few minutes familiarizing yourself with these sections before adding your first app.

Step 8: Set Up Payments

This is one of the most important steps. Without completing payment setup, you won’t receive earnings even if your app starts generating revenue.

Navigate to Payments in your Google Payments profile and provide:

  • Legal name
  • Business or individual status
  • Tax information
  • Bank account details
  • Billing address

Google may require identity verification depending on your country and payment thresholds.

Tip: Complete payment verification before launching your app to avoid delays when you become eligible for payouts.

Common First-Time Setup Mistakes

Avoid these common issues:

  • Creating multiple AdMob accounts for the same business without a valid reason.
  • Using test ads in a production app or clicking your own ads.
  • Entering incorrect tax or payment information.
  • Choosing the wrong country during account setup.
  • Skipping identity verification.

These mistakes can delay approval or even lead to account suspension.

Part 2

Add Your First App, Verify Ownership & Create Your First Ad Unit

After creating your AdMob account, the next step is to add your mobile app. This allows AdMob to generate the identifiers (App ID and Ad Unit IDs) that your app will use to request ads.

In this chapter, you’ll learn how to:

  • Add an Android or iOS app
  • Publish vs. unpublished apps
  • Verify app ownership
  • Understand App ID vs. Ad Unit ID
  • Create your first Banner, Interstitial, and Rewarded ad units
  • Configure basic ad settings

Step 1: Add Your First App

Log in to your AdMob dashboard and navigate to: Apps → Add App

You’ll be asked two questions:

1. Is your app published?

You’ll see two options:

  • Yes
  • No

Choose “Yes” if:

  • Your app is already live on Google Play.
  • Your app is available on the Apple App Store.

AdMob will search the store listing automatically.

Choose “No” if:

Your app is:

  • Still under development
  • In internal testing
  • In closed beta
  • Waiting for store approval

This lets you integrate the SDK and test ads before launch.

Pro Tip: If you’re still building your app, add it to AdMob as unpublished. Once it’s live on Google Play or the App Store, you can link the published version without changing your App ID.

Step 2: Search for Your Published App

If you selected Yes, AdMob will ask you to search for your app.

Simply type:

  • App name
  • Package name (Android)
  • Bundle ID (iOS)

Example:

com.company.weatherapp

or

Daily Weather

Once found, click: Add

Why Does AdMob Search the App Store?

Google verifies:

  • The app actually exists
  • The package name matches
  • Store metadata is correct
  • App ownership can later be verified

This helps prevent fraud and duplicate listings.

Step 3: Add an Unpublished App

If your app isn’t public yet:

Select: No → Add App Manually

You’ll enter:

  • App name
  • Platform (Android or iOS)

Example:

Budget Tracker Pro

Platform: Android

Click: Add

That’s it.

You’ll receive an App ID immediately.

Step 4: Understand Your App ID

After adding your app, AdMob generates something like:

ca-app-pub-3940256099942544~3347511713

This is your App ID.

Do not confuse it with your Ad Unit ID.

What is an App ID?

Think of the App ID as your app’s identity inside Google’s advertising ecosystem.

Every app gets one App ID.

You’ll place it inside your Android Manifest or iOS configuration during SDK integration.

Where is the App ID Used?

Android:

<meta-data
android:name="com.google.android.gms.ads.APPLICATION_ID"
android:value="ca-app-pub-xxxxxxxxxxxxxxxx~xxxxxxxxxx"/>

iOS:

Usually configured inside Info.plist.

We’ll cover the full integration in Part 3.

App ID vs. Ad Unit ID

This confuses almost every beginner.

FeatureApp IDAd Unit ID
IdentifiesYour appIndividual ad placement
QuantityOne per appMany per app
Used During SDK Initialization
Used When Loading Ads
Exampleca-app-pub-xxx~yyyca-app-pub-xxx/yyy

Notice the difference:

App ID contains: ~

Ad Unit ID contains: /

A surprising number of integration issues happen because developers accidentally swap these two values.

Step 5: Create Your First Ad Unit

Inside your app dashboard, click: Ad Units → Create Ad Unit

You’ll see several options.

Banner Ads

Best for:

  • News apps
  • Utility apps
  • Finance apps

Displayed as a small rectangle at the top or bottom of the screen.

Typical sizes include:

  • 320 × 50
  • Adaptive banners
  • Leaderboards (for tablets)

Advantages:

  • Easy to implement
  • Consistent revenue
  • Doesn’t interrupt users

Disadvantages:

  • Lower CPM compared to full-screen formats

Interstitial Ads

Displayed between natural transitions, such as:

  • Level completed
  • Article finished
  • Screen changes

Advantages:

  • High visibility
  • Better CPM
  • Simple implementation

Avoid showing them:

  • During gameplay
  • While typing
  • During purchases
  • Immediately after app launch

Rewarded Ads

Rewarded ads are among the highest-performing formats in AdMob.

Users voluntarily watch a full-screen video in exchange for an in-app reward.

Examples:

  • Extra lives
  • Coins
  • Gems
  • Hints
  • Premium content
  • Energy refill

Because the user opts in, rewarded ads often achieve:

  • Higher completion rates
  • Better engagement
  • Higher eCPMs
  • Improved user satisfaction

If you’re building a game, rewarded ads should be one of your primary monetization formats.

Native Ads

native ads facebook

Native ads blend into your app’s interface.

Unlike banners, you control the layout while Google’s SDK supplies the ad assets (headline, icon, image, CTA, etc.).

Native ads require more development effort but can deliver a better user experience when implemented correctly.

App Open Ads

App Open ads appear while your app is launching or returning to the foreground.

They work best when:

  • Loading screens already exist
  • App startup takes a few seconds

Avoid displaying App Open ads so frequently that they frustrate users returning to the app.

Step 6: Name Your Ad Unit

Give each ad unit a descriptive name.

Good examples:

Home Banner

Level Complete Interstitial

Daily Reward Video

Main Menu Native

Splash Screen App Open

Avoid generic names like:

Banner 1

Test

New Ad

123

Clear naming makes reporting and optimization much easier as your app grows.

Step 7: Save Your Ad Unit ID

After creating the ad unit, AdMob will generate something like:

ca-app-pub-3940256099942544/6300978111

This is your Ad Unit ID.

You’ll use this value whenever your app requests an ad.

Each placement should have its own Ad Unit ID.

For example:

PlacementAd Unit
Home BannerBanner ID
Store BannerBanner ID
Reward ScreenRewarded ID
Game OverInterstitial ID

This separation allows AdMob to optimize performance and gives you clearer reporting.

Organize Your Ad Units

As your app expands, you may have dozens of ad placements.

A simple naming convention can save hours later:

PlacementSuggested Name
Home Screen BannerHome_Banner
Shop RewardShop_Reward
Game OverGameOver_Interstitial
SplashSplash_AppOpen

Consistent names make A/B testing, mediation, and performance analysis much easier.

Before You Integrate the SDK

Before writing any code, make sure you have:

  • ✅ AdMob account
  • ✅ App added
  • ✅ App ID
  • ✅ At least one Ad Unit ID
  • ✅ Test device ready
  • ✅ Android Studio or Xcode installed

With these pieces in place, you’re ready to integrate the Google Mobile Ads SDK.

Common Mistakes to Avoid

Many first-time developers run into the same issues. Here’s how to avoid them:

  • Using the App ID instead of the Ad Unit ID when requesting ads. Remember: the App ID initializes the SDK, while the Ad Unit ID loads a specific ad.
  • Creating one ad unit and reusing it everywhere. Use a unique Ad Unit ID for each placement so you can measure performance accurately.
  • Poor naming conventions. Names like “Banner1” become confusing once your app grows. Use descriptive names instead.
  • Deleting ad units unnecessarily. If an ad unit isn’t needed, consider disabling it instead of deleting it, as historical reporting may be lost.
  • Not planning placements in advance. Decide where ads will appear before integration to minimize future code changes.
Part 3

Install the Google Mobile Ads SDK and Display Your First Test Ad

At this stage, you’ve:

  • ✅ Created your AdMob account
  • ✅ Added your app
  • ✅ Created your first ad units

Now it’s time to integrate the Google Mobile Ads SDK into your app so it can request and display ads.

In this section, we’ll cover:

  • Installing the SDK (Android & iOS)
  • Initializing the SDK
  • Adding your App ID
  • Displaying your first Banner Ad
  • Using Google’s test ads
  • Common integration errors
  • Best practices before going live

Official Documentation: https://developers.google.com/admob

How the Ad Request Flow Works

Before writing any code, it’s helpful to understand what happens behind the scenes.

User Opens App
       │
       ▼
App Initializes Google Mobile Ads SDK
       │
       ▼
App Requests an Ad
       │
       ▼
Google AdMob Receives Request
       │
       ▼
Advertisers Compete in Real-Time Auction
       │
       ▼
Winning Ad Is Returned
       │
       ▼
User Sees Advertisement

This process usually completes in under a second.

Architecture Overview

Your App
      │
      ▼
Google Mobile Ads SDK
      │
      ▼
Google AdMob Servers
      │
      ▼
Advertisers

The SDK handles communication with AdMob, retrieves ads, tracks impressions and clicks, and reports earnings.

Step 1: Install the Google Mobile Ads SDK

Google provides SDKs for both Android and iOS.

Android

Open your project in Android Studio.

Add the Google Mobile Ads dependency to your app module.

Google recommends always using the latest stable SDK version from the official documentation rather than copying older versions from blog posts.

Official SDK installation guide: https://developers.google.com/admob/android/quick-start

iOS

Open your project in Xcode.

Install the SDK using either:

  • Swift Package Manager (recommended)
  • CocoaPods

Official guide: https://developers.google.com/admob/ios/quick-start

Swift Package Manager is now Google’s preferred installation method for new projects.

Step 2: Add Your App ID

Remember the App ID you copied earlier?

Example:

ca-app-pub-1234567890123456~1234567890

This identifies your application.

Android

Add the App ID inside AndroidManifest.xml.

<meta-data
android:name="com.google.android.gms.ads.APPLICATION_ID"
android:value="ca-app-pub-xxxxxxxxxxxxxxxx~xxxxxxxxxx"/>

iOS

Add the App ID inside Info.plist.

Google reads this value when initializing the SDK.

Common Mistake

Many developers accidentally paste their Ad Unit ID instead of their App ID.

Remember: The App ID always contains a tilde (~), while Ad Unit IDs contain a slash (/).

Step 3: Initialize the SDK

The SDK should be initialized once, ideally when your application starts.

Initialization allows the SDK to:

  • Download configuration
  • Prepare ad services
  • Reduce future ad load times
  • Enable mediation adapters

Avoid initializing the SDK multiple times during a single app session.

Step 4: Create Your First Banner Ad

Banner ads are the easiest format to test.

A banner ad requires:

  • A banner view
  • An Ad Unit ID
  • An ad request

The flow looks like this:

Banner View
      │
      ▼
Assign Ad Unit ID
      │
      ▼
Request Ad
      │
      ▼
Banner Appears

Good locations include:

  • Bottom of home screen
  • Below article content
  • Between navigation sections

Avoid:

  • Covering important buttons
  • Blocking navigation
  • Placing ads too close to interactive elements

Google considers accidental clicks a policy violation.

Step 5: Always Use Test Ads First

This is one of the most important steps in the entire guide.

Never click your own live ads.

Never ask friends to click them.

Never repeatedly refresh live ads.

Instead, Google provides test ads.

Why Test Ads Matter

Test ads allow you to verify:

  • SDK integration
  • Layout
  • Ad loading
  • Reward callbacks
  • Interstitial behavior

without generating invalid traffic.

What Test Ads Look Like

A test ad usually contains a label such as: Test Ad

This indicates the request isn’t participating in the live advertising auction.

Google’s Official Test Ad Units

Google provides dedicated test Ad Unit IDs for:

  • Banner
  • Interstitial
  • Rewarded
  • Native
  • App Open

These IDs should be used during development.

Once everything works correctly, replace them with your own Ad Unit IDs before publishing.

Official list: https://developers.google.com/admob/android/test-ads

Step 6: Register Your Test Device

Instead of relying only on Google’s sample ad units, you can register your own device as a test device.

Benefits include:

  • Testing your actual Ad Unit IDs
  • Validating mediation
  • Checking targeting
  • Avoiding invalid traffic

During testing, your device always receives test creatives.

Step 7: Test Different Ad Formats

Before release, verify every format individually.

Checklist:

✅ Banner loads

✅ Interstitial displays

✅ Rewarded video finishes

✅ Reward callback triggers

✅ Native layout renders correctly

✅ App Open ad appears only at launch

Rewarded Ads

Flow:

User Clicks "Watch Ad"
        │
        ▼
Rewarded Video Loads
        │
        ▼
User Watches Video
        │
        ▼
Video Completes
        │
        ▼
Reward Granted

Never grant the reward before the video finishes. Google recommends awarding the reward only after the SDK confirms completion.

Interstitial Ads

Best shown:

  • Between game levels
  • Between articles
  • After completing a task
  • After finishing a quiz

Avoid:

  • Showing immediately after app launch
  • Interrupting gameplay
  • Displaying during checkout or payment flows

Interstitials should appear during natural pauses to minimize user frustration.

Native Ads

Native ads blend into your app’s design.

For example:

────────────────────────────

Top News

Sponsored

How AI Is Changing Finance

Learn More

────────────────────────────

Clearly label native ads as Sponsored or Ad to comply with Google’s policies.

App Open Ads

App Open ads display while your app is loading.

Best practices:

  • Show only when launch takes a few seconds.
  • Don’t display on every resume from the background.
  • Limit frequency to avoid disrupting users.

Debugging Common Issues

“No ads are showing”

Possible causes:

  • Using live Ad Unit IDs before approval
  • Internet connection issues
  • SDK not initialized
  • Incorrect App ID
  • Testing on an emulator without test ads

“Ads load forever”

Check:

  • Ad Unit ID
  • Internet connectivity
  • Firewall or VPN restrictions
  • Google Play Services (Android)

“App crashes”

Usually caused by:

  • Missing SDK dependencies
  • Incorrect manifest configuration
  • Outdated SDK version
  • Null pointer exceptions in ad callbacks

Review your IDE logs (Logcat for Android or Xcode Console for iOS) to pinpoint the error.

Best Practices Before Going Live

Before replacing test ads with production ads, verify that:

  • The SDK is initialized once.
  • Your App ID is correct.
  • Each placement uses the correct Ad Unit ID.
  • Ads don’t overlap UI elements.
  • Users can close full-screen ads.
  • Rewards are granted correctly.
  • No test Ad Unit IDs remain in production builds.
  • Your app complies with Google Play and App Store policies.
Part 4

Go Live with AdMob, Set Up app-ads.txt, and Stay Policy-Compliant

By now, you’ve:

  • ✅ Created your AdMob account
  • ✅ Added your app
  • ✅ Created ad units
  • ✅ Integrated the Google Mobile Ads SDK
  • ✅ Successfully displayed test ads

Now it’s time to prepare your app for real users—and real revenue.

In this section, we’ll cover:

  • Switching from test ads to live ads
  • Understanding AdMob’s review process
  • Setting up app-ads.txt
  • Configuring privacy and consent
  • Monitoring your first impressions
  • Avoiding policy violations that can reduce earnings or suspend your account

Before You Go Live: A Final Checklist

Before replacing test ads with live ads, make sure you’ve completed the following:

TaskStatus
AdMob account approved
Payment profile completed
App added to AdMob
App published or ready for release
SDK integrated correctly
Test ads displaying successfully
Privacy policy available
User consent solution configured (if required)

Skipping any of these steps can delay monetization or trigger policy issues.

Step 1: Replace Test Ad Unit IDs

During development, you used Google’s sample test IDs.

Now it’s time to replace them with your own production Ad Unit IDs.

For example:

Development

ca-app-pub-3940256099942544/6300978111

Production

ca-app-pub-1234567890123456/9876543210

Only make this change when you’re ready to publish or distribute your production build.

Important: Never leave Google’s sample test IDs in a production app. Doing so will prevent you from earning revenue.

Step 2: Publish or Update Your App

Once you’ve replaced the test IDs:

Android

  • Build a release APK or AAB.
  • Upload it to Google Play Console.
  • Submit it for review.
  • Roll it out to production.

iOS

  • Archive your app in Xcode.
  • Upload it to App Store Connect.
  • Submit it for App Review.
  • Release it to the App Store.

AdMob starts serving live ads only after users install the production version of your app.

Step 3: Understand the AdMob Review Process

New apps don’t always begin showing live ads immediately.

Google performs automated and manual checks before enabling full ad serving.

Typical review criteria include:

  • App functionality
  • Policy compliance
  • App content
  • Traffic quality
  • User experience

During this period, you may notice:

  • Low fill rates
  • Limited ad serving
  • Public Service Ads (PSAs)
  • Test-like behavior

This is normal.

Reviews typically complete within a few days, though timing can vary depending on the app and account.

Step 4: Set Up app-ads.txt

One of the most commonly overlooked steps is configuring app-ads.txt.

Without it, some advertisers may choose not to bid on your inventory, reducing your fill rate and revenue.

What Is app-ads.txt?

app-ads.txt is a text file hosted on your website.

It tells advertisers which companies are authorized to sell ads for your app.

This helps prevent ad fraud and increases buyer confidence.

How It Works

Advertiser
     │
     ▼
Checks app-ads.txt
     │
     ▼
Verifies AdMob Authorization
     │
     ▼
Places Bid
     │
     ▼
Ad Displayed

Where Should It Be Hosted?

Your file should be publicly accessible at:

https://yourdomain.com/app-ads.txt

For example:

https://example.com/app-ads.txt

The domain must match the website listed in your app store listing.

What Does the File Contain?

Google provides the exact line to include.

A typical entry looks similar to:

google.com, pub-XXXXXXXXXXXXXXXX, DIRECT, f08c47fec0942fa0

Replace the publisher ID with your own.

You can find the required content inside your AdMob dashboard under the app-ads.txt section.

Verify app-ads.txt

After publishing the file:

  1. Return to AdMob.
  2. Open your app.
  3. Navigate to the app-ads.txt page.
  4. Verify that Google detects the file.

It may take several hours (or even a day) for Google to confirm the file.

If your app serves users in regions such as the European Economic Area (EEA), the UK, or California, privacy regulations may require you to collect user consent before serving personalized ads.

Key regulations include:

  • GDPR (European Union)
  • UK GDPR
  • CCPA / CPRA (California)
  • Other regional privacy laws

Failing to collect consent where required can limit ad serving and expose you to compliance risks.

Use Google’s User Messaging Platform (UMP)

Google offers the User Messaging Platform (UMP) SDK to help developers display consent forms and manage user choices.

With UMP, you can:

  • Detect whether consent is required.
  • Show Google’s consent form.
  • Store user preferences.
  • Pass consent signals to AdMob automatically.

Integrating UMP is the recommended approach for most developers targeting users in regulated regions.

Privacy Policy Requirements

Your app should include a clear and accessible privacy policy.

At a minimum, it should explain:

  • What data is collected
  • How ads are served
  • Whether third-party advertisers are used
  • How users can manage or withdraw consent
  • Links to relevant privacy practices

Your privacy policy should be linked from:

  • Your app
  • Your app store listing
  • Your website (if applicable)

Step 6: Monitor Your First Live Traffic

Once your app is live, visit the Reports section in AdMob.

Initially, you’ll want to track:

MetricWhy It Matters
RequestsTotal ad requests sent
ImpressionsAds successfully displayed
Match RatePercentage of requests matched with an ad
Fill RatePercentage of matched ads actually served
eCPMRevenue earned per 1,000 impressions
Estimated EarningsYour projected revenue

Don’t panic if these numbers fluctuate during the first few days. Ad serving often stabilizes as Google’s systems learn more about your app and traffic.

Step 7: Understand Payment Thresholds

AdMob doesn’t issue payments instantly.

You’ll receive earnings after:

  • Meeting the payment threshold for your country
  • Completing identity verification
  • Submitting required tax information
  • Adding a valid payment method

Payments are typically processed on a monthly cycle, provided all requirements are met.

Common Policy Violations to Avoid

Google enforces strict monetization policies. Violations can result in limited ad serving or account suspension.

Avoid:

  • Clicking your own ads.
  • Encouraging users to click ads (“Support us by clicking!”).
  • Placing ads too close to navigation buttons.
  • Showing interstitials at disruptive moments.
  • Displaying more ads than content.
  • Misleading users into interacting with ads.
  • Generating artificial traffic through bots or incentivized clicks.

Review Google’s publisher policies regularly, as they may change over time.

Tips for Maximizing Early Revenue

As your app begins serving live ads, keep these best practices in mind:

  • Start with a balanced mix of banner, interstitial, and rewarded ads.
  • Focus on user retention first—more engaged users generally mean more monetization opportunities.
  • Monitor eCPM and fill rate by country.
  • Avoid excessive ad frequency that could increase churn.
  • Test different placements over time rather than making large changes all at once.

Optimization is an ongoing process, not a one-time task.

Part 5

Optimize Your AdMob Revenue, Scale with Mediation & Next Steps

If you’ve followed this guide from the beginning, you’ve successfully:

  • ✅ Created your AdMob account
  • ✅ Added your first app
  • ✅ Created ad units
  • ✅ Installed the Google Mobile Ads SDK
  • ✅ Tested ads safely
  • ✅ Published your app
  • ✅ Configured app-ads.txt
  • ✅ Set up privacy and consent

At this point, your app is officially monetized.

But getting ads live is only the beginning.

The developers who earn the most from AdMob don’t just integrate ads—they continuously optimize how those ads are delivered, priced, and displayed.

Monitor Your Core Monetization Metrics

Log into your AdMob dashboard regularly and monitor these metrics:

MetricWhat It MeansWhy It Matters
Ad RequestsTotal ad requests sentIndicates demand from your app
ImpressionsAds successfully shownDetermines revenue potential
Match RateAds matched to requestsLow values may indicate inventory issues
Fill RateAds actually servedAffects total earnings
eCPMRevenue per 1,000 impressionsPrimary profitability metric
CTRClick-through rateHelps evaluate placement quality
Estimated EarningsRevenue before final adjustmentsTracks monetization progress

Instead of focusing only on total revenue, pay attention to eCPM, fill rate, and retention together. A higher eCPM doesn’t always mean more revenue if users leave because of poor ad experiences.

Optimize Ad Placement

Where you place ads has a significant impact on both revenue and user experience.

Banner Ads

Ideal locations:

  • Bottom of the home screen
  • Below article content
  • Between content sections

Avoid:

  • Covering navigation buttons
  • Placing ads too close to clickable elements
  • Displaying multiple banners on the same screen

Interstitial Ads

Show interstitials during natural pauses, such as:

  • After completing a game level
  • Between articles
  • After finishing a task
  • Before loading the next screen

Avoid interrupting users while they’re actively interacting with your app.

Rewarded Ads

Rewarded ads consistently generate some of the highest eCPMs in mobile apps because users choose to watch them.

Offer meaningful rewards, such as:

  • Extra lives
  • Premium currency
  • Exclusive content
  • Time boosts
  • Unlockable features

The reward should feel valuable enough to encourage participation without undermining your app’s core experience.

Understand Ad Frequency

Showing more ads doesn’t always increase revenue.

Too many ads can lead to:

  • Lower session length
  • Reduced retention
  • More uninstalls
  • Negative reviews

Instead, experiment with different frequencies and monitor user behavior to find the right balance.

Use Mediation to Increase Competition

One limitation of relying solely on AdMob is that every impression is primarily served through Google’s demand.

With mediation, multiple ad networks compete for the same impression.

More competition often leads to:

  • Higher eCPMs
  • Better fill rates
  • Increased overall revenue

Popular mediation partners include:

  • AppLovin MAX
  • Unity Ads
  • ironSource
  • Meta Audience Network
  • Pangle
  • Mintegral

AdMob also supports mediation, allowing you to connect additional demand sources through its platform.

When AdMob Alone Isn’t Enough

Many developers begin with AdMob because it’s easy to integrate and offers access to Google’s advertiser demand. As your app grows, however, managing monetization becomes more complex.

You may find yourself asking questions like:

  • Which ad network performs best in each country?
  • Why is my fill rate dropping in certain regions?
  • Should I raise or lower floor prices?
  • Is my waterfall configured correctly?
  • Are users seeing too many low-value ads?

These aren’t one-time setup tasks—they require continuous monitoring and optimization.

For growing apps and gaming studios, this is where a dedicated monetization partner can make a difference.

Scale Beyond Basic AdMob with UndrAds

If you’re ready to move beyond a simple AdMob setup, UndrAds helps publishers and app developers maximize ad revenue without manually managing every aspect of their ad stack.

Unlike a basic AdMob implementation, UndrAds combines AI-powered optimization with managed ad operations to improve yield across your inventory.

Some of the capabilities include:

  • AI-driven floor price optimization to adjust pricing dynamically based on demand.
  • Waterfall optimization that automatically prioritizes the highest-performing demand sources.
  • Header bidding and mediation expertise to increase competition for each impression.
  • 24/7 monitoring so performance issues are identified and addressed without constant manual oversight.
  • Google Certified Publishing Partner support, helping developers get more value from Google’s advertising ecosystem.
  • Detailed reporting and optimization recommendations tailored to your app’s traffic and audience.

Whether you’re an indie developer launching your first app or a gaming studio managing millions of monthly impressions, these optimizations can unlock additional revenue that a default AdMob configuration may leave on the table.

Learn more: https://undrads.com

Common AdMob Problems (and How to Fix Them)

ProblemPossible CauseSolution
Low fill rateWeak advertiser demand, missing app-ads.txtAdd mediation partners, verify app-ads.txt
Low eCPMPoor geographic mix, low-value placementsTest new placements, optimize floor prices
Ads not showingIncorrect App ID or Ad Unit IDVerify integration and SDK initialization
Limited ad servingPolicy issues or invalid trafficReview AdMob Policy Center
Low CTRPoor placementExperiment with layout and timing
Revenue suddenly dropsSeasonal demand, policy changes, technical issuesCheck reports and recent app updates

Frequently Asked Questions

How long does AdMob approval take?

Most accounts are approved quickly, but app reviews and full ad serving may take several days depending on your app and traffic.

Can I use AdMob before publishing my app?

Yes. You can add an unpublished app, integrate the SDK, and test using Google’s test ads before launching.

Can I use AdMob on both Android and iOS?

Yes. AdMob supports Android, iOS, Unity, Flutter, React Native, and several other development frameworks.

Do I need a website?

A website isn’t required to create an AdMob account, but you’ll typically need one to host your app-ads.txt file and privacy policy.

How much does AdMob pay?

There is no fixed rate.

Revenue depends on factors such as:

  • Country
  • User demographics
  • Ad format
  • App category
  • Seasonality
  • Advertiser demand
  • User engagement

Can I use multiple ad networks?

Yes. You can use AdMob mediation or another mediation platform to allow multiple demand sources to compete for your inventory.

Final Launch Checklist

Before considering your AdMob integration complete, confirm that you’ve:

  • Created your AdMob account.
  • Added your app.
  • Configured payment information.
  • Generated your App ID and Ad Unit IDs.
  • Integrated the Google Mobile Ads SDK.
  • Tested with Google’s test ads.
  • Switched to production Ad Unit IDs.
  • Published your app.
  • Hosted and verified app-ads.txt.
  • Implemented a privacy policy and consent solution where required.
  • Monitored your first live impressions and earnings.

Key Takeaways

Setting up AdMob is relatively straightforward, but maximizing revenue takes ongoing optimization. Start with a clean implementation, use Google’s recommended best practices, and monitor performance closely as your audience grows.

As your app scales, don’t hesitate to explore mediation, experiment with placements, and analyze your metrics regularly. Small improvements in eCPM, fill rate, or retention can compound into significant revenue gains over time.

If you’re reaching the point where manual optimization becomes difficult, working with a monetization partner like UndrAds can help you unlock additional demand sources and automate many of the tasks involved in managing a high-performing ad stack.

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