AppsFlyer and MMA did a survey on the impact of Apple's IDFA change.

AppsFlyer: 37% of marketers are clueless on Apple’s IDFA change

Apple’s change in the use of the Identifier for Advertisers, known as IDFA, has left mobile marketers in a state of confusion and concern over how the retirement of the tracking technology will affect targeted advertising.

That’s the result of a survey by mobile measurement firm AppsFlyer and the Mobile Marketing Association (MMA). Seventy-four percent of marketers expect a negative financial impact from the IDFA changes. They expect to lose identifying information on 50% of consumers under the new opt-in rules, which ask consumers if they want to be tracked.

The varying degrees of understanding of the IDFA changes in iOS 14 is surprising, given the protocol will dramatically change measurement of the effectiveness of targeted mobile advertising. Thirty-seven percent of respondents have little to no understanding of the IDFA protocol.

“One of the key points is really the high level of uncertainty. And the fact that people know that something is going on,” said Jasper Radeke, senior director of marketing for North America at AppsFlyer, said in an interview with GamesBeat. “It’s not 100% fear. People are waiting until the privacy changes are being implemented and people know something is happening. Some people are very familiar with it, and some are uncertain.”

What’s happening

In June, Apple said that iOS 14 would have new privacy features that would require consumers to opt-in for permission to be tracked, and that those who don’t will no longer be targeted by advertisements that use the IDFA.

Apple delayed the enforcement of the new rule in September, saying it would instead allow the mobile app ecosystem — including mobile game developers who generated billions of dollars a year on iOS — more time to adjust. Apple will enforce the rule in early 2021, and it has offered its SKAd Network as a way to measure advertising results in a less granular manner.

Mobile marketers are confused by Apple’s IDFA change.

The report found 74% of marketers agree that publishers will suffer revenue losses. And 19% of advertisers likely to shift ad spending within mobile, while 33% likely to reduce mobile ad spend.

“An overwhelming majority of people basically say that they believe the changes are going to be negative,” Radeke said. “The more people know about the actual changes implemented by Apple, the higher likelihood they are going to be negative.”

SKAdNetwork isn’t seen as a good way to measure results. Only a third of marketers said they were somewhat to very likely to adopt SKAdNetwork, with 46% of marketers unsure whether they will adopt Apple’s solution.

About 21% of marketers expressed confidence about their capability to continue to use deterministic identifiers for measurement, either by using alternative identifiers like emails, or by finding new strategies to obtain permission to access the IDFA, such as by providing incentives. (Apple has said you can’t offer rewards in exchange for people giving up their privacy).

“If you think about people reacting to this, they’re basically three segments of answers,” Radeke said. “The first one is basically saying, ‘Okay, now we’re going to give up, we’re going to move our budgets elsewhere.’ That is a small group. Then there was a group of people who are basically saying, ‘We’re going to look at other ways of getting the deterministic identifiers by, for example, incentivizing them.’ Apple is being very clear that’s not going to work.”

He added, “The third cohort is really the people are saying, ‘OK, how do we change our measurement strategy? How do we change our approach, and these are the ones that were ultimately catering to the people who understand that mobile is really interesting and pivotal to their strategy.”

The future of privacy

The industry has to adapt to Apple’s IDFA change, but respondents also acknowledged that it is part of a larger turn toward consumer privacy dictated by General Data Protection Regulation in Europe and California’s new privacy law in the U.S.

AppsFlyer measured the impact of IDFA changes on marketing.

Google will most likely jump on the bandwagon, as 80% of marketers find it somewhat, to extremely likely, that other mobile operating systems, such as Android, will enforce similar “opt-in” approaches when it comes to identifiers.

Anticipating this, 71% said they somewhat trust probabilistic data (where the marketer makes its best guess about the behavior of the consumer) for audience targeting and 70% trust it somewhat for measurement and attribution.

The survey was conducted in September across MMA’s 800 member companies with 171 responses from those with manager titles or above.

Karen Cohen, senior director of product marketing at AppsFlyer, said in an interview with GamesBeat, said that when prompted whether they want to be tracked, more than 90% of people say they don’t want to be tracked.

“Things are moving pretty fast overall so it’s important to stay on top of the topic. But as of now, is we’re not aware of [anything new],” Cohen said.

Updated at 11 p.m. Pacific with interview quotes.

Dean Takahashi

Dean Takahashi is editorial director for GamesBeat at VentureBeat. He has been a tech journalist since 1988, and he has covered games as a beat since 1996. He was lead writer for GamesBeat at VentureBeat from 2008 to April 2025. Prior to that, he wrote for the San Jose Mercury News, the Red Herring, the Wall Street Journal, the Los Angeles Times, and the Dallas Times-Herald. He is the author of two books, "Opening the Xbox" and "The Xbox 360 Uncloaked." He organizes the annual GamesBeat Next, GamesBeat Summit and GamesBeat Insider Series: Hollywood and Games conferences and is a frequent speaker at gaming and tech events. He lives in the San Francisco Bay Area.