The concept of user Account is available only from Avaz ver 6.6 and above and only for iOS apps.
Note: This option is not available for Android apps.
You can delete your account from the app.
1. Go to Settings > Account details
2. Tap Delete account
3. A window pops up for a confirmation of the Account deletion and all it's associated information. Please note that the action is irreversible. Once your account is deleted it cannot be restored.
Related articles:
Avaz FAQ: I have deleted my account. How do I restore it?