When you install PubApp for the first time and start with PubApp.2.0.exe you will be welcomed with the following login window.
Enter admin (all small letter) in the User Name field and Enter admin (all small letter) in the Password field. Press Enter to Log in. The main window will open.
You can change the user name and password from the main window later.
More Links:
How to change the default username and password in PubApp?
How to edit login password in PubApp ?
