Open In WhatsApp - Direct Chat

No contact is created on the device, so you don't need to save the number on your contacts list in order to open the chat. Simply open the app, enter the number, click the button and the chat will open (if the number exists, otherwise WhatsApp will notify it).
Also one more feature with direct chat like this send message to unknown number directly.
If unkown number called you and you want to know if they have whatsapp or not?
You need to send a message to someone but you don't want to save it as a contact?
You want to start a chat with yourself?
Then Download this app and just enter number and direct chat with that number.
Also OpenInWhatsapp allows you to open conversation with yourself and as we also know that Whatsapp doesn't allow to open chat with yourself in whatsapp but you can do it with DirectChat.
You can find new Whatsapp friends just entering number. if that person use whatsapp it will open whatsapp chat dialog otherwise Whatsapp will notify if number is not found in whatsapp.
Note:This app uses official whatsapp public api to open a chat with any number you enter (Direct chat between you and that number).