To open ZenMate app settings on iOS, simply tap the gear symbol in the top right side of the interface.
This is where you'll find information and settings about your ZenMate VPN app.
Username: Shows the current active account name, for trial version users it's the mail address used when registering.
Plan: Your current plan / subscription type.
Active devices: Number of currently active devices in your account. An Ultimate account will allow you to use up to 5 devices at the same time.
Expires on: Shows the exact date of when your current subscription will expire or renew (if you have automatic renewal on).
Manage account: Loads the online account management page into your default browser. Account management might be necessary to e. g. activate or deactivate a device slot.
Log-out: Here you log out from the current active account. The app switches to the start page, where you can log-in again.