It makes no difference which method you choose to sign-up with, but keep in mind that you will need to use that same method to log in to your account each time you log in. For instance, if you sign-up by connecting your Facebook account, you will need to log in with that Facebook account each time. And if you sign-up by using your email address or phone number, you will need to enter that same email address or phone number each time you log in, and each time you will receive a new 4-digit code that you will need to enter.
NOTE: If you go into your Settings and connect your Twitter or Facebook account, this does not affect how you log in to SportsCastr. When you connect Twitter or Facebook from your Settings, you are making it easier to choose to share your SportsCastr live streams and replays to your Twitter or Facebook accounts.