When you use our services on a mobile device, we will collect information about your device, including (where applicable) its International Mobile Equipment Identity (“IMEI”), advertising identifier (“IDFA”), and vendor identifier (“IDFV”), integrated circuit card identifier (“ICCID”), media access control (“MAC”) address, model and resolution, which we will use to calculate the number of devices using our products and services and analyze data about device models and graphics adaptation. We also need unique count analysis information, such as daily active users (DAU), daily active devices (DAD), monthly active users (MAU), monthly active devices (MAD), and retention, user behavior funnels, product crash rates, and more.