GAIN Ads is an advertising platform provided by CyberAgent, Inc., designed to help advertisers acquire new users through performance-based campaign delivery. Its approach combines machine-learning models developed by specialists and data analysts to account for the characteristics of both products and prospective users, optimizing campaigns for user acquisition.

The platform connects to a broad range of global and domestic advertising inventory, including Google Authorized Buyers, Magnite, AppLovin, Pangle, Index Exchange, and several major Japanese supply-side platforms. This reach helps advertisers access apps and websites beyond social networks and efficiently place ads across a wide selection of media.

GAIN Ads emphasizes both audience reach and the quality of advertising placements. It applies third-party blacklist standards to screen delivery destinations and avoid unsuitable web properties. For selected ad sizes—300×250, 320×100, and 320×50—it uses dedicated creative materials intended to improve visibility and presentation.

The service supports inquiries from advertisers and media operators, as well as requests for information.