You can install your Roamless app on a different device and use your credentials to log in like usual.
Remember: If you are changing devices and need to install your Roamless eSIM on a different device as well, please remember to first delete the eSIM from your old device. Then you can install the eSIM on your new device like usual.
Deleting the Roamless app from your device has no impact on your Roamless eSIM. Your eSIM will remain on your device until you manually remove it.
Please see this article for details on how to delete your Roamless eSIM.