The social media giant is planning to have a unified backend infrastructure for WhatsApp, Messenger & Instagram Messaging.

Such an update will allow users to send messages to one another without switching apps. However, this doesn’t mean that the three standalone apps will merge to become one; instead, it will make it possible to send messages among the platforms while keeping the brands separate.

In simple terms, with this option, users can send a message to a WhatsApp-only friend through Messenger.

Read more here.