Google I/O 2016: Allo and Duo messaging apps, and what they offer

Google Allo and Duo are two messaging apps announced at I/O 2016 and here’s what they will offer to users.
Google Allo and Duo are two new messaging apps announced at the I/O 2016 conference. For many, the big question is why; why give us two new messaging apps, Google?
We already have Gchat–sorry Hangouts–but let’s face it, the popularity of Hangouts has been eclipsed by WhatsApp, Facebook Messenger, Snapchat and other players. Some of us might still use Hangouts out of