"We collect certain device information provided by our advertising exchange Partners or our Customers to serve targeted ads to you, to measure performance of targeted ads, to analyze trends in aggregated data and to analyze data to identify the demographic and interests of End Users across the app ecosystem. This information includes: Generic geographic location consisting of IP address, Device ID, Android ID or Identifier for Advertisers (IDFA), Advertising ID, or GAID, Ad ID, UserID or User ID, Installed Apps."
The app collects multiple persistent identifiers (Device ID, Android ID, IDFA, GAID, Ad ID) and installed app lists to build cross-app profiles and track users across the app ecosystem.