WhatsApp, the world's most popular messaging service, is testing a new feature that will tell a user when his or her message has been read by the recipient. The app already confirms the delivery of a message by showing two ticks.
But users of the latest WhatsApp app are reporting that the two ticks now turn blue - currently they are shown in grey colour - when the message has been read. One...
WhatsApp will soon tell you if your message has been read or not