D. Khripunov launched a very useful addon based service for WhatsApp.

As you know, if a man is not in your contact list (you just wrote his number and want to send a message) you can’t directly write him in WhatsApp. You have first add him to contacts, wait for a moment or two to synchronize the contact list with WhatsApp, and only then send him a message. Annoyable and too long.

There is a solution: https://writetowhatsapp.com/. The service uses a WhatsApp API and your data will be sent via a secure WhatsApp connection. No need to worry about that.

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