You can delete your WhatsApp backup in iPhone easily. You can do it with these steps;
- Open your WhatsApp.
- Tap on settings at the bottom right corner.
- Tap on chats option. tap on ‘clear all chats’. It will delete your complete backup chats.
- Tap on ‘chat backup’.
- Tap on auto backup.
- Tap on ‘off’ option to turn off the backup. It will turn off the backup.
That’s how you can turn off the backup and delete the backup on WhatsApp.