Home The Sell Sider The Ad Tech Do-Over: What Will You Do Differently With In-App Header Bidding?

The Ad Tech Do-Over: What Will You Do Differently With In-App Header Bidding?

SHARE:

The Sell Sider” is a column written by the sell side of the digital media community.

Today’s column is written by David Jakubowski, director of publisher solutions at Facebook.

The benefits of header bidding on the web are well documented: Publishers receive an average increase of 15% to 30% – even as high as 50% – in CPM, advertisers win the impressions that mean the most to them and people have more relevant ad experiences.

On the web, adoption has been swift: Header bidding exploded on the scene about three years ago, and since then more than 70% of top publishers in North America have adopted it.

The next step is to bring bidding to apps to balance value for advertisers while maximizing monetization for publishers.

App publishers tend to be more technically focused, swift and incredibly adept at monetizing their properties. So, why is bidding in apps almost nonexistent?

One answer could be that advertising is a smaller percentage of revenue for app publishers. The biggest players make much of their money through in-app purchases and subscriptions. Since advertising is only now being added as a second revenue stream, app advertising is in its infancy.

Or perhaps it’s even simpler: There’s no “header” in apps.

It’s more technically challenging and time-consuming to create a “wrapper” – or, more precisely, a bidding clearinghouse – for an app. You have to ensure the server-side code works seamlessly with the bidding SDK. Publishers would have to add another SDK, which many are loath to do.

With load times already slow, another SDK – or another three SDKs – is a hard case to make. Therefore, the tech will need to be server-side, which adds to the sophistication requirements for direct bidding in apps.

Furthermore, the tech ecosystem for apps is underdeveloped and fragmented across both ad serving and mediation. Current solutions are still based on the same decade-old waterfall that often biases their own demand. Best I can tell, only Amazon Publisher Services has developed third-party tech that is even close to bringing direct bidding to app. Early indications are that MoPub has desires to move in this direction, but its timeframe is unclear.

So, what will it take to move the market?

First, the stack can be simplified. There are only three necessary functions in today’s world:

1. Planning and trafficking

2. Serving ads

3. A bidding clearinghouse where all demand sources can compete equally, with the highest price winning

(Quality – human x viewable x transparent x filters – could be considered a fourth pillar, but for the purposes of this discussion, I’m sticking strictly with the supply “tech.” I’ll save quality for another column.)

The first two functions are already progressing as the natural market forces seem to be working. Nativo, Freewheel and others have evolved the ad server and with that, the incumbents have felt the pressure and are evolving, too. So, for functions No. 1 and No. 2, check the box.

On the third layer in the stack, header bidding was a hack on ad servers on desktop, proving that a fair clearinghouse makes more money for publishers. So where is the bidding clearinghouse layer in apps? Time will tell whether Amazon, MoPub or someone else will lead.

There’s even an opportunity for the ecosystem to create an open-sourced version. In web, there were two widely used libraries: AppNexus’ Prebid.js and Yieldbot’s Pubfood. For it to be viable in app, publishers would have to be willing to contribute. Is anyone out there willing to contribute? Only time will tell.

The truth is that for the first time in a long time, publishers can control what happens next. They can refuse to work with waterfalls and grant access to their inventory only to the players who meet their business and technology criteria. Rest assured, the market will correct and the ecosystem will build to the publisher’s wishes.

Unfortunately, publishers are faced with the paradox of choice. Currently, no mature bidding clearinghouse exists. So, what to do? Do nothing or work with waterfalls until something better comes along?

Both options lead to an inevitable repeat of past ad tech failures. Quickly the waterfall tech will bias its own demand, waive fees and provide volume incentives. Pure tech players who are trying to offer a fair and transparent option aren’t given a chance, incumbents take back control and publishers are disadvantaged yet again.

Mobile app is a chance for the ad tech do-over. Let’s propose a different path for us all: Refuse to work with waterfall vendors, build your own solution or test anyone willing to meet your requirements.

The time is now.

Follow Facebook (@Facebook) and AdExchanger (@adexchanger) on Twitter.

Tagged in:

Must Read

AdExchanger Senior Editors Anthony Vargas and Alyssa Boyle.

POSSIBLE 2026: AdExchanger's Hot Takes

AdExchanger Senior Editors Alyssa Boyle and Anthony Vargas share their takeaways from three days chatting about agentic AI at POSSIBLE.

Reddit Reports A 75% Boost In Q1 Ad Revenue As It Reaches For 100 Million Daily US Users

Generative AI search has pushed traffic off a cliff across most of the internet, but not on social platforms. Reddit included.

POSSIBLE 2026: Can AI Help Agencies Finally Break Down Those Silos?

Domenic Venuto, indie agency Horizon Media’s chief product and data officer, sat down with AdExchanger during POSSIBLE at the Fontainebleau in Miami to unpack the role of AI in today’s media and advertising landscape.

Privacy! Commerce! Connected TV! Read all about it. Subscribe to AdExchanger Newsletters

Google Touts Its AI Ad Tech Adoption And New AI Max Features

Google announced new features and ad types for AI Max, its AI-based bidding product for search and shopping or sponsored product ads. The company also touted “hundreds of thousands” of advertisers using AI Max.

Hand pressing blue AI button on keyboard. Digital collage of artificial intelligence interface.

Meta’s Ad Machine Is Purring, So Why Did Its Stock Drop?

Meta’s Q1 call sounded like an AI and hardware pitch, but under the hood it was still about one thing: investing in AI to squeeze more money out of its ads business.

Alphabet Exceeds $100 Billion In Q1 And Its Profits Almost Doubled

Alphabet earned $109.9 billion in Q1 this year, up from $90.2 billion a year ago. And that’s not even the truly gobsmacking number.