ROM version

ROM version number of a user device.

EMUI version

EMUI version number of a user device.

Device model

Model of a user device.

App version

Version of the installed app.

System language

System anguage set on a user device.

Mobile vendor

Vendor of a user device.

OS

Name of the operating system installed on a user device.

OS version

Version of the operating system installed on a user device.

First launch time

Time when a user launches an app for the first time.

Location

Name of the country or region where a user uses an app.

Last interaction time

Time when a developer interacts with a user for the last time (for example,  sending a push message or an in-app message).