Allo's unique features came from its Google Assistant powered features such as automated replies, in-app search queries, video and GIF messages, and an Incognito option to make messages delete themselves after a certain period of time. According to Google, rather than resuming work on Allo, it will shutter the project and focus its efforts on Messages. To cut down to five apps, Google will eventually shut down Hangouts and Google Allo, while Messages, Hangouts Chat, Hangouts Meet, Duo, and Google Voice would continue to be supported. In March 2019, all Allo messages and backups will be deleted.
As for Hangouts, the venerable chat app that launched with Google+, the company basically confirmed it would go away at some point last week, with users being "upgraded" to the Hangouts Chat and Hangouts Meet services now available for businesses.
Allo joins Hangouts "Classic" on the scrapheap, after it was revealed that Google is working towards moving people on to the newer Hangouts Meet and Hangouts Chat apps.
Google didn't dispute this in any of their clarifications, only acknowledging that they'll soon offer Hangouts users the chance to use Hangouts Chat, which is now only available to G Suite customers as more of a collaboration tool. "We're fully committed to supporting Hangouts users in the meantime", wrote Klainer.
We want every single Android device to have a great default messaging experience. It's an advanced SMS standard that could allow different Android devices to get iMessage like communication platform.
Regarding Hangouts Meet, the company recently launched the ability to organize meetings with up to 100 participants, making it easier for businesses to use.
Google Duo, its video calling app, was also mentioned in the post, but nothing is changing in this instance.