To manage your devices, you will need to:

1. Head over to the Settings page. To get here you just need to click on the icon in the top right corner of the Xonder App screen.
2. If you select the fourth option down Login & Security, you will then be taken to a page where the only option is Device Management.
3. After clicking that you will see the names of all of the devices your Xonder Account has been opened on, in which location, and at what time & date.
4. Here you will have the opportunity to Remove any devices you do not recognise.