Third-party cookie-based marketing suffers in the Apple world. According to to a recent study by Marin Software, “website conversions on Apple’s iOS devices were not included in paid search metrics 80 percent of the time a third-party cookie was used for tracking.” That’s a huge swath of untapped data, and enough to destroy the accuracy of any brand’s marketing strategy.
“Mobile advertising is seeing tremendous growth right now, with the ads served on iPhones and iPads accounting for a significant chunk of that growth,” said Matt Lawson, vp of marketing and alliances at Marin. “Poor analytics due to cookie blocking could lead to undercounting mobile advertising revenues, and ultimately to under-investing in mobile.”
Coupled with possible legislative attacks on cookie-based tracking, the old ways of traditional ad buys and tracking are going the way of the betamax. The study also found that the Apple iOS conversion rates were on average 23 percent higher than those of Windows users, when adjusted for iOS undercounting. That means that Apple users are active consumers ripe for targeting, but they’re escaping the radar.
![]()
More in Media
Inside The Daily Mail’s creator-led content playbook
March 27, 2026
Inside the structure, strategy, and metrics of the Daily Mail’s creator-led content push.
Media Briefing: Overheard at the Digiday Publishing Summit, March 2026 edition
March 26, 2026
With no sign of search traffic returning, publishers are doubling down on subscriptions to build direct reader revenue — but it’s not easy.
People Inc.’s Jon Roberts on the AI licensing boom – and the revenue lag
March 25, 2026
People Inc’s Jon Roberts discusses the boom in AI content licensing marketplaces — and the revenue that could materialize for publishers.