Want to save unknown WhatsApp numbers into your phone contacts as bulk? Save list of phone numbers and email addresses into your mobile contacts quickly? iKontacts, an easy manage contacts app helps you for that and it has more other features. - Save unknown numbers from your WhatsApp and save into your Phone Contacts list: Export all unknown WhatsApp contact numbers and import mobile numbers into your mobile contacts app. iContacts app auto generate contact name and you can save the list qui