Yahoo Together doesn't hide its ambitions to compete with every other app on the market, especially Slack. It's never said outright, but just a single glance at the user interface of Yahoo's latest messaging app gets the message across. It is very similar to Slack, indeed, though it lacks some of the features that Slack has. As far as functionality goes, we're sure that stuff like voice calling (which is surprisingly not a thing in Yahoo Together on release) will be rolled out eventually, but in the vast ocean of messaging apps, can Yahoo's latest offering differentiate itself enough from the competition to actually compel you to use it?
Yahoo Together is helmed by the same team that developed Yahoo Messenger. The app had a closed beta earlier this year under the name "Yahoo Squirrel" but is now available on both Android and iOS. To use Together you need a Yahoo account, though you can invite people to your group who are not signed up. This happens with a unique code that the invitee can enter upon signing in.
The app is a bit rough around the edges still, though it has a rather unique feature in the form of Smart Reminders. These allow you to set a reminder for any message in a chat and have all participants notified at a chosen date and time.
Unfortunately, as of yet at least, Yahoo Together doesn't have a desktop or a browser version. Yahoo would be wise to at least develop a web-based version for its latest service, lest it meets a similar fate to its predecessor.