Yes, you can add multiple trusted devices to your account. This means that you will be able to access your UNAYO account on any one of those devices. To add a trusted device, you can install the UNAYO app (or reinstall the app). Once you have confirmed your country and language, you can select the "login" option and provide your credentials to add the device as a trusted device. This will allow you to access your account on the device in future, or until you remove the device as a trusted device.