Getting AdX Access: AdMob vs GCPP

Key Points

• AdMob and Google Ad Manager run on the same underlying Google Mobile Ads SDK, so switching between them doesn't require a full reintegration.
• There are three ways to get AdX demand as a mobile app developer: direct publisher approval, AdMob or Google Ad Manager, or a Google Certified Publishing Partner.
• Direct AdX approval takes serious scale, which leaves most developers choosing between the other two paths.
• The strongest of those options is an SDK that combines in-app header bidding and app mediation demand in a single integration.
• Adding AdX demand to an existing waterfall cuts out most of the benefits of a fully functional SDK.

The Complete Guide to App Advertising

AdMob vs Google Ad Manager: The Core Difference

Most developers frame the in-app ad network decision as AdMob or Google Ad Manager. There's a third path through a Google Certified Publishing Partner, and it changes the math for anyone who can't hit direct AdX scale. Both Google products sit on top of the same Google Mobile Ads SDK, according to Google's own developer documentation, which means you don't rebuild your integration from scratch if you move from one to the other. The real decision is about scale, control, and what your waterfall needs to do.

Google itself has had to correct a common myth here. According to Google's support documentation, Google Ad Manager is not simply "a premium version of AdSense or AdMob." It's a separate ad server with its own demand management layer, including Multiple Customer Management (MCM), which lets a parent account manage AdX access for child publishers. We see this MCM setup trip up developers constantly during build reviews. If the applicant keys or MCM hierarchy aren't configured correctly, AdX demand simply doesn't show up, even when everything else looks fine.

Here's how the two stack up at a glance:

The eCPM gap publishers hear about between the two comes down to mechanism. Google Ad Manager supports deeper waterfalls, private marketplace deals, and direct-sold campaigns competing alongside AdX. AdMob's lighter feature set doesn't expose any of that.

Next Steps:

• AdMob Rewarded Video Implementation: A practical guide to setting up rewarded video for revenue optimization.
• AdMob eCPM Benchmarks: What publishers should realistically expect from AdMob demand by category.
• AdMob Alternatives: App monetization options ranging from DIY setups to fully managed services.
• AdMob Revenue Calculator: A tool for estimating your app's earning potential before you scale demand.

How to Get Access to AdX

There are a few ways to get access to Google Ad Exchange, also known as Google AdX.

1. Be approved as a publisher: You can be approved as a standalone web or app publisher to get direct access to the exchange, but this requires serious scale. Typically, website publishers can only achieve this if they have on the order of 5 million monthly page views or more.
2. Through Google AdMob or Google Ad Manager (GAM): Smaller publishers get access through AdMob for apps and Google Ad Manager. Access through these tools isn't limited by the same size requirements as direct access, but the feature set you're working with is far more limited.
3. Through a Google Certified Publishing Partner (GCPP): The third option is working with a Google Certified Publishing Partner. The size and scale of the partner you choose determines the available feature set.

Since most publishers can't get direct access to Google AdX, they'll land on AdMob or a Google Certified Publishing Partner. Below, we break down each one and offer guidance on implementation.

Using Google AdMob

Starting with AdMob is simple. You'll need to integrate the Google Mobile Ads SDK, but once you're past that technical hurdle, you only need a phone number and a Google account. From there, you use AdMob's dashboard to create an ad unit and place it wherever the ad should appear.

You'll have minimal control over price floors and other settings through AdMob, but it's a solid place to start, especially if you're still validating your app's traffic and don't yet meet GAM's scale expectations.

Getting AdX Through a Google Certified Publishing Partner

When working with a GCPP, we see app developers take two routes:

1. Implement a full solution: An app developer works with a partner to implement a fully functional SDK for all in-app ad monetization.
2. Build the GCPP into your existing waterfall: An app developer pulls AdX demand through the GCPP and builds it into their existing waterfall structure.

There are real pros and cons to each approach, depending on what you're looking for. We get this question constantly during our sales process, so here's how we break down the differences.

Implement a Full Ad Monetization SDK

In most cases, this is the better option for app developers, provided they choose the right partner.

We built our SDK to maximize competition. We force both in-app header bidding solutions (like Prebid and Google Open Bidding) and app mediation partners (like AppLovin or InMobi) to compete with each other in an entirely new way.

Before the RAMP SDK, you had to choose between mediation or header bidding, and integrating multiple demand sources meant a separate SDK integration for each source.

If you're moving from a pure mediation solution, adding header bidding to your mix significantly increases competition, and ultimately, revenue, for your inventory.

The Complete Ad Exchange Resource Center

How the RAMP SDK Works

Our in-app header bidding solution forces a unified auction between Prebid, Google Open Bidding, Amazon TAM, and demand from our own in-house Direct Sales team.

That's a true unified auction, and it surfaces the highest bid across all of those sources.

That bid then competes against bids from app mediation partners in a waterfall architecture. Legacy mediation setups still rely on static waterfalls, but major mediation platforms, including AppLovin MAX and Unity LevelPlay, now run their own real-time in-app bidding auctions, which changes how they stack up against a unified header bidding auction.

This solution blends the best of in-app header bidding technology with app mediation technology, giving app publishers a "best of both worlds" setup.

Benefits of the Full Solution

Beyond the increased ad revenue driven by more competition, this solution gives app developers a healthy mix of both brand and performance demand.

Traditional app mediation solutions provide primarily performance, or CPA (cost per acquisition), based demand. Most ads available from these sources are ads for other apps. That means developers get paid only when a user downloads the promoted app, which comes with tracking issues and payment delays.

Header bidding solutions provide heavily brand, or CPM (cost per mille), based demand. These ads are paid for by brands building awareness with your audience, and you get paid per impression. That creates a revenue stream that's more consistent, predictable, and faster to pay.

Essential Background Reading:

• AdMob vs. Google Ad Manager, Explained: A breakdown of how these two Google products differ at a feature and demand level.
• Ad Exchange vs. Ad Network: Covers the foundational distinction between exchanges like AdX and traditional ad networks.
• What Is AdMob? A Publisher's Platform Overview: A full rundown of what AdMob does and how publishers use it.
• Google Ad Manager vs. DFP: Background on how Google Ad Manager evolved from DoubleClick for Publishers.

Incorporating AdX Demand into Your Waterfall

Many app developers want access to AdX demand, since they're not large enough to get it on their own, and want to build it into their existing waterfall structure.

This may make sense for app development companies or studios with a full in-house ad ops team dedicated to maintaining the many integrations a custom-built solution requires, which is rare.

Without a dedicated ad ops team, most app developers end up splitting focus between app improvements and day-to-day ad management. Most developers are far better off focusing on app development, user experience, and growing their user base than on the minutiae of ad management.

If this is the desired setup, you'll need to find a GCPP that supports it. Expect to reach out partner by partner to find one that fits.

Can You Get Our AdX Demand Without the Full SDK?

Our RAMP for App solution can't be integrated this way. Doing so removes nearly all the benefits of the technology we've built to maximize publisher revenue and simplify operations. If app developers want to work with us, they need to implement the full SDK to take advantage of every demand source we've integrated.

Related Content:

• Prebid: DIY vs. Managed Service: Compares building your own Prebid stack against working with a managed partner.
• Open Bidding vs. Prebid vs. OpenRTB: Explains how these three header bidding approaches differ technically.
• Prebid vs. Header Bidding: Clarifies the relationship between Prebid and header bidding as a broader category.
• Exchange Bidding vs. Header Bidding: Looks at how Google's exchange bidding compares to standard header bidding setups.
• Header Bidding Wrapper vs. Managed Service: Weighs self-built wrapper solutions against a fully managed alternative.

Frequently Asked Questions

Can you use AdMob and Google Ad Manager together?

Yes. Many publishers start on AdMob for simplicity and move specific apps or inventory to Google Ad Manager as they scale, since both run on the same Google Mobile Ads SDK.

Do you need to re-integrate your SDK to move from AdMob to Google Ad Manager?

No. Because AdMob and Google Ad Manager share the same underlying SDK, moving between them is primarily a configuration and demand-setup change rather than a development project.

What traffic level justifies choosing Google Ad Manager over AdMob?

Direct AdX access generally requires scale on the order of 5 million monthly page views or more. Below that, AdMob or a Google Certified Publishing Partner is typically the realistic path, with Google Ad Manager access coming through MCM or a certified partner relationship.

See It In Action:

• Unity Ads vs. AdMob: A real-world comparison of two mobile ad platforms for app developers choosing demand sources.
• Choosing Your Platform: AppLovin vs. Competitors: Looks at how app publishers evaluate mediation platforms in practice.
• Best Ad Monetization Platforms for News Websites: Examines enterprise vs. self-service monetization choices for publishers at scale.

What's Best for You?

The right ad network depends on your team, your technical depth, and what you're trying to solve. Portfolio publishers want the fewest moving parts and the best ROI. Enterprise teams want proper support and MCM configured right the first time. Premium publishers want revenue without wrecking UX. Technical developers want to see under the hood.

We recommend integrating our full SDK regardless of where you land on that spectrum. It cuts down the time and effort required to manage ads and integrations while maximizing competition and ad revenue at the same time.

What's not to like?