No, for security reasons, you can only be logged in to your YouTrip account on one device at a time.
When you sign in on a new device, your account will be automatically logged out of the previous one.
Note: Logging out of the YouTrip app on your old device doesn’t remove any cards you’ve added to Apple Pay (starting 18 November 2025) or Google Pay. Those wallet tokens will stay active until you remove them manually.