Digital Market Index: Q4 2025

The mobile and digital advertising landscape underwent a structural transformation in the final quarter of 2025, characterized by a pivot toward generative artificial intelligence and a cooling of the traditional gaming sector. While global mobile download volumes remained largely stagnant, non-gaming applications—specifically productivity tools and AI-integrated services—emerged as the primary drivers of growth. The gaming industry entered a period of stabilization, recording modest revenue gains of 1.5% as strategy and puzzle titles maintained dominance despite a broader decline in genre-wide download volumes.

Geographically, the market exhibited divergent trends, with India serving as the primary engine for download expansion, while Europe experienced a significant 23% year-over-year surge in monetization. Digital advertising reached record levels, totaling $53.2 billion in the United States alone. This growth was fueled by a 172% increase in generative AI-related ad spend and a 21% rise in over-the-top video investment as streaming platforms successfully captured traditional broadcast budgets. Social media remains the dominant advertising channel, accounting for 59% of total expenditure.

Retail media networks played a pivotal role in the quarter’s economic performance, with Amazon maintaining a commanding lead by generating 123 billion impressions, significantly outpacing competitors like Walmart and Target. This retail media expansion coincided with a fundamental shift in digital discovery, as generative AI platforms increasingly diverted traffic away from traditional organic search engines. These developments underscore a broader transition in consumer behavior, where AI-driven utility and retail-integrated advertising are rapidly displacing legacy models of digital engagement and search.