Android
Add a New User auf Android
On a shared Android phone, only one person can be the device owner (administrator), but the system supports several additional users at the same time. Each user gets an isolated profile: own home screen, own installed apps, own photos and own accounts. Nothing from one profile is visible in another.
This feature is managed under Tap on Settings ➔ Tap on System ➔ Tap on Multiple users. From there, choose Tap on Add user, confirm with Tap on Next, then Enter a Name, choose a Profile picture and tap on Done. Android sets up the new profile and switches to it automatically so the person can start signing in with their own accounts right away.
Use a separate user instead of Guest mode when the same person will keep using the phone regularly and needs their settings, apps and data saved between sessions. Guest mode is meant for short, temporary use and discards its data afterward.
Keep in mind that added users take up storage space for their own apps and files, and some device-wide settings such as Wi-Fi networks or wallpaper on the lock screen may still be shared depending on the manufacturer's version of the system. Only the administrator profile can add or remove other users.