Allo users can use the application until March 2019 and export their chat history using instructions posted here. 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. Google paused work on Allo earlier this year to focus on Messages, and soon after it brought many of Allo's features to Messages.
We want every single Android device to have a great default messaging experience. Google states that many of Allo's best features have made their way to Messages, and that they've chose to "stop supporting Allo to focus on Messages". Google's Scott Johnston-a product lead for three of Google's seven messaging apps-responded to the report on Twitter, calling it "shoddy reporting" and saying it "is only half the story".
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. Google says it will continue to leave Allo running through March 2019. - Given Messages continued momentum, weve chose to stop supporting Allo to focus on Messages. And unlike with Allo, Google says it is seeing "strong engagement across both Android and iOS". "We're fully committed to supporting Hangouts users in the meantime", wrote Klainer. When Hangouts is shut down, Google can better diversify its messaging user base across its five remaining apps, I guess.
Meanwhile, Google will focus on Messages. We've been working closely with the mobile industry to upgrade SMS so that people around the world can more easily enjoy group chats, share high-res photos, and get read receipts on any Android device.
Today's announcement does a certain amount to change all that, but still leaves Messaging, Duo and Hangouts doing more or less the same job in a different way.