What's app,  and all other messaging apps such as Facebook, Instagram,  etc are centralised and have B S, no, not the rude word, they have Bots and Spam, that track your identity and the information, your information that you thought was personal, private and confidential is been sold to advertisers to target your web activity to sell you goods that they know you are fond of.

Today is your opportunity to disconnect from the centralised world and learn about decentralised applications.