Usar la aplicación APKPure
Obtener Fast WhatsApp - Send WhatsApp Messages Quickly versión histórica en Android
Enviar mensajes de WhatsApp rápidamente
Are you tired of saving multiple phone numbers for only ONE time message!!
This App is here to help you get rid of this with its simple and minimum design.
Just :
open the App => Enter phone number => Click "Start Conversation". And you are ready to go.