How to delete contacts on iPhone in bulk?

Using the Contacts app directly on your iPhone to delete all contacts at once is not possible, as the app does not offer a feature to delete all contacts in a single action. Instead, the Contacts app allows you to delete individual contacts one by one, which can be very time-consuming if you have many contacts.

If you want to delete contacts on iPhone all at once, you would need to do it through syncing with iCloud or using third-party apps, since the Contacts app itself does not support bulk deletion.

Steps to delete contacts on iPhone all at once:

1. Open the Contacts app on your iPhone.

2. Tap a contact, then Edit.

3. Scroll down and tap Delete Contact.

4. Repeat for each contact.

The Contacts app on iPhone is designed for managing individual contacts, so it cannot delete all contacts at once by itself. To delete contacts on iPhone all at once, the most effective method is to use iCloud on a computer or a trusted third-party app that supports bulk deletion. This approach ensures you can clean out all your contacts quickly and efficiently.