It s yet another way for users to talk with their friends, but with a couple of neat twists including a smart replies feature that even works with photos.
That means instead of typing a reply, you can tap on bubbles that show up to suggest responses.
Smart Replies also works with images, thanks to Google s image recognition technology.
So if someone sends a picture of their dog, the recipient can quickly answer with Cute dog!
Google is going after a crowded market, competing against the likes of Facebook, Microsoft, Telegram and WeChat.
It s unclear what s going to happen with Hangouts, since Allo s features seem to supercede much of that functionality.