The mobile advertising landscape of 2026 is defined by a paradox: we have more data than ever, yet less “identity” than we’ve had in a decade. As we navigate the post-ATT world and the unexpected pivot of Google’s Privacy Sandbox, the choice between iOS and Android is no longer a simple binary of “quality vs. quantity.” It is a strategic decision involving sophisticated attribution models, purchasing power volatility, and a radical shift in how we define “targeting.”