To delete Fishdom data on your iPhone, follow these steps. First, clear the iCloud data. Go to Settings, tap your name, then iCloud, Manage Storage, Fishdom, and finally Delete Data.
Next, fully delete the Fishdom app from your iPhone. This step ensures that all local data is removed from your device.
Then, reinstall the app. Download and install Fishdom again from the App Store. This will give you a fresh start with the game.
If you still face issues, contact the game developer for further help. They can provide additional assistance to resolve any problems you encounter.