You can export the users and import them into the new application.
The issue that then remains is the passwords that can’t be exported and imported while keeping them intact. So you’ll need to implement a function to reset the passwords and make sure the user changes their password after first login. Or maybe use the forgot password module from the appstore (https://appstore.home.mendix.com/link/app/1296/Mendix/Forgot-Password-module) to allow the passwords to be scrambled after the import and allow for setting a new password.