Hello! It sounds like you're having a tricky time accessing your Period Tracker app due to a forgotten passcode. But don't worry, I'll do my best to help you out.

Unfortunately, without an account or cloud save, resetting the passcode directly on the app might be difficult. However, here are a few steps you can consider:

1. Face ID or Touch ID: Sometimes, if you've previously enabled Face ID or Touch ID for app access, you might be able to use that to bypass the passcode.

2. Check iPhone Settings: Go to your iPhone settings and navigate to "Passwords" to see if there's an option stored for the app. While this is typically for web passwords, it's worth a check if any settings sync across apps.

3. App Reinstallation: As a last resort, you may need to uninstall and reinstall the app. This would result in losing any locally stored data since there's no cloud backup, but it would allow access again.

4. Contact Support: If none of the steps above help, you may want to reach out to the app's support team for guidance at [email protected] or [email protected].

Hopefully, one of these steps helps you regain access. Let me know if you have any questions!