League Tycoon uses "Sign in with Google" and "Sign in with Apple" for authentication. There are no usernames or passwords. Whichever method you choose the first time is the one you need to use on every device going forward.

Sign in with the same method (Google or Apple) and the same email you used on your old phone. If you used "Sign in with Apple" before and are now tapping "Sign in with Google" (or vice versa), the app treats that as a different account. Try the other sign-in option.

You're signed into different accounts on each device. Check the display name in the side menu on both devices. If they don't match, sign out on the device where leagues are missing and sign back in with the same method and email that works on your other device.

If you can get into the app, tap your display name in the side menu to open your Account screen. Your email is shown there. If you can't get in, try each Google account you have, then try Apple. If you're still stuck, ask a league mate to look at your team in the standings or on the owner screen to find your display name. Then email support@leaguetycoon.com with your display name and we can look up the email tied to it.

Tap your display name in the side menu, then tap the menu icon and select "Sign Out." You can then sign back in with a different Google or Apple account.

League Tycoon doesn't have its own password system. Google and Apple handle your credentials. Reset your password through your Google account (accounts.google.com) or Apple ID (appleid.apple.com) directly.

We can't manually swap the email on an account because authentication is handled by Google and Apple. Your commissioner can remove your old account from the league and send a fresh invite to the email you want to use. Your team stays intact and the commissioner can reassign it to your new account.

Try recovering your account through Google or Apple's account recovery process first. If that isn't possible, have your commissioner remove your old account and send a new invite. Your team stays intact and can be reassigned to your new account.

That's normal. When you use "Sign in with Apple" and choose to hide your email, Apple creates a private relay address. Everything works the same and notifications still reach you. Just remember you signed up with Apple if you need to sign in on a new device.