Now that over 4 million Snapchat usernames and phone numbers have been leaked due to a security breach, some iPhone users are interested in leaving the service for good. If you wish to delete your Snapchat account, the process can be completed in just a few steps:
1. Open the Snapchat app, login and tap the Settings icon in the upper right corner.
2. Navigate to Support -> Learning the Basics -> Delete an account.
3. Enter your Snapchat password.
4. Tap the Delete My Account button to close the account.