If you want to close your account and permanently delete your data from Floccs, you can do this directly from the app settings.
How to do it:
Go to your profile in the Floccs app.
Open settings (the gear icon) and go to Account settings.
Scroll to the bottom and tap Delete account.
Please note: When you delete your account, your personal profile is permanently removed. Any horses where you are the sole administrator will also be deleted.