Yesterday when i sent a message to my friend , the Tick appears at bottom-right of the message turned Blue .. i amazed and took a screenshot of it. Let me show you the screenshot :





The 1st Tick was normal , the 2nd one amazed me because it turned Blue as you can see in the Screenshot. and the 3rd one again normal.

When i analysed  the whole thing .. I found out that WhatsApp was Testing the new Message Read Indication Tick .

Currently the WhatsApp comprises of three types of Indication .

1. The clock : When the Message is in sending( Uploading ) process .
The clock icon is shown.

2. The Single Tick : When you see a single Tick , it means your message has been Sent( Uploaded ) .

3. The Double Tick : When you see a Double Tick , It means the Message is Delivered to the Person.

Now Here comes the Blue Tick : The blue tick indicates us that the message is read by the person whom the message has been delivered .