It's super easy to find your account and routing number inside the Starship app. All you have to do is log in and follow these steps:
Tap on the Spending Account Card on the home page (this is where you see your current spending account balance)
Tap on the "..." in the upper right corner of your screen and you will find your account and routing numbers, as well as your plan type.
You can also find this information by tapping on your profile icon on the top right of the Starship app and then Spending Account.