Mobile in‑app advertising isn’t just growing; it’s accelerating. According to EMARKETER, US mobile in‑app ad spending is projected to exceed $235 billion by 2027, and the majority of that activity flows through just three mediation platforms that collectively represent more than 90% of global gaming mediation share. Understanding where auctions actually happen is now the prerequisite to competing in mobile at scale.
And as investment scales, so does consolidation.
Over the past several years, mediation platforms have become the control layer of the in-app ecosystem, determining how inventory is surfaced, how auctions run, and how demand competes. Increasingly, developers are standardizing around a small number of mediation environments to power their monetization stacks.
With Unity LevelPlay now part of our integrated mediation coverage, PubMatic’s OpenWrap SDK spans the dominant ecosystems where the vast majority of in‑app auctions take place, providing buyers direct, scaled access across the platforms that define today’s mobile mediation landscape.
For performance buyers specifically, that milestone changes what scale truly means — not more connections, but deeper participation inside the environments where auctions are actually won.
Why Mediation Coverage Now Defines Mobile Scale
In a consolidated mediation landscape, scale is no longer defined by the number of exchange connections. It is defined by how effectively demand can participate inside the environments where auctions are actually conducted.
Google’s mediation footprint spans an estimated 1.5 million apps, while Unity LevelPlay and AppLovin MAX together power hundreds of thousands more, particularly across high‑value gaming environments. Collectively, these platforms influence the majority of in‑app ad revenue across iOS and Android.
By integrating across all three, PubMatic is present wherever developers are standardizing their ad stack. That creates broader and more direct integration coverage, stronger win‑rate opportunities, and meaningful incremental scale for advertisers. It also ensures demand can compete consistently across every major mediation environment developers rely on, creating a single, interoperable access point within what has historically been a fragmented ecosystem.
What This Unlocks for Buyers
When demand can compete across mediation platforms representing approximately 90% of gaming share globally, buying becomes more consistent, scalable, and transparent. Buyers access this scale through the same trusted PubMatic infrastructure they leverage across CTV, display, and omnichannel environments.
Buyers benefit from:
- Expanded mobile reach across gaming and beyond: Access top gaming and non-gaming apps through a single, certified integration spanning Google, Unity LevelPlay, and AppLovin MAX — including emerging app environments where advertising monetization is scaling rapidly but supply remains fragmented.
- Auction-level transparency: As a certified bidder, PubMatic’s OpenWrap SDK transacts directly inside each mediation environment, giving buyers clearer sight lines into auction dynamics, win rates, and media performance — signal that indirect integrations simply can’t provide.
- Performance-grade, verified inventory: Certification against Google, Unity LevelPlay, and AppLovin MAX standards means less noise in the supply path and more of each dollar reaching the impressions that drive outcomes.
- No new integrations required: Access this inventory through existing deals, custom auction packages, or targeted PMP and SPO arrangements — the infrastructure you already use, now extended across the platforms where in-app scale lives.
- Engagement formats built for in-app performance: PubMatic’s Creative Innovation Suite — including Click to Cart — is designed for the attention dynamics of app environments, connecting upper-funnel reach to measurable lower-funnel results.
Because OpenWrap SDK is integrated across the top three largest mediation platforms, buyers are not navigating disconnected supply pockets. Instead, they can activate through a unified infrastructure layer that extends across the environments where developers are standardizing their monetization stacks.
Together, these capabilities help ensure campaigns scale efficiently across premium in‑app environments with greater transparency and operational consistency.
From Fragmentation to Interoperability
As mediation consolidates around a small number of dominant platforms, interoperability becomes the differentiator — not just for developers, but for the buyers who depend on consistent access to their audiences wherever those audiences spend time.
Integrations across Google AdMob, Google Ad Manager, Unity LevelPlay, and AppLovin MAX position PubMatic across the platforms that collectively power the vast majority of global in‑app auctions. Instead of navigating isolated supply pockets, buyers can activate across dominant ecosystems through a consistent, interoperable infrastructure layer.
A More Unified Mobile Marketplace
The next phase of mobile advertising will not be defined solely by growth, but by how effectively buyers navigate a consolidated mediation landscape.
With integrations across AppLovin MAX, Google AdMob, Google Ad Manager, and Unity LevelPlay — platforms that collectively represent roughly 90% of gaming mediation share globally — PubMatic’s OpenWrap SDK delivers a level of mediation coverage unmatched in the market.
For buyers, that means greater transparency, stronger performance potential, and more efficient media investment across the environments where in‑app advertising continues to expand.
Learn More
The mediation landscape has largely consolidated — buyers who haven’t yet aligned their mobile strategy to that reality are already leaving scale on the table. Connect with your PubMatic representative or fill out this form to unlock certified access across the top three leading mediation platforms, driving scalable reach across the world’s leading apps across all verticals.
Our team will help you identify the right SPO pathways, curated packages, and high impact creative formats to meet your performance goals. With direct pipes, cleaner supply, and engagement-driven formats, PubMatic makes it easier than ever to drive measurable business outcomes.
