Hello! I see you’re having trouble remembering which application you used to log into your ZEPETO account named "wikiri." Let’s try to narrow this down and get you back into your account smoothly.

Just to make sure, when you say “which application,” do you mean the login method—like whether you used Facebook, Google, Apple ID, or email? Or are you referring to a specific third-party app you used? Also, do you still have access to the email or phone number associated with the account?

Here’s a step-by-step guide to help you find the login method:

1. Check ZEPETO App Login Options:
Open the ZEPETO app on your iPhone and go to the login menu. Usually, ZEPETO lets you log in via Apple ID, Facebook, Google, or email/phone. Try logging in with each option you think you might have used.

2. Look for Linked Accounts:
If you can log in through any of these services, once inside your profile, check under Settings > My Account to see which method is linked to your account.

3. Reset Using Email or Phone:
If you’re unsure of the login method but remember your email or phone, use the “Forgot Password” or “Find Account” options on the login screen. This sometimes helps recover access even if you don’t remember the original login type.

4. Check Your iPhone’s Settings:
Go to Settings > Passwords on your iPhone (requires iOS 15 or later combined with iCloud Keychain) and look for saved ZEPETO login credentials that may hint at the method used.

5. If None Work, Account Recovery:
If you cannot remember the login info or associated accounts, ZEPETO has an account recovery support page where you can submit details to verify ownership and recover your account. You can check here: I lost my ZEPETO account.

Does this match your situation? If you already tried some of these steps, please tell me which ones so I can suggest alternatives.