Beware that if this does not use a real web browser then it's likely to get your whatsapp account suspended. Don't use it with any account you care about, you will lose all your data.
Hell, I got my whatsapp account suspended (appealed and reversed) just for using the official web client too soon after creating a new account.
Hell, I got my whatsapp account suspended (appealed and reversed) just for using the official web client too soon after creating a new account.