Google's Inbox app is shutting down in March 2019 [theverge.com]
Google is bowing to the inevitable and shutting down the Inbox email app, though users will have until March to switch over to Gmail. It's a little sad for fans of the app, but it's also not a very big surprise.
Almost exactly four years ago [theverge.com], Google launched Inbox as an innovative new email app that lived alongside Gmail. It brought a ton of new ideas to how email could work, including old standbys like snoozing and newer ideas like bundling. Over those four years, Inbox gained a small number of adherents who suffered through too-rare updates so they could have a better (or at least different) email experience.
A lot of the features in Inbox were well-loved, mainly because they were so obviously lacking in Gmail without dealing with hacky third-party solutions. Inbox provided a way to manage the onslaught of email with gestures that made it easy to process messages on the go. It was also generally seen as a potential incubator for new email features that could come to Gmail — though, in practice, Inbox didn't see enough updates to justify its reputation as a testing ground.
Most features have already been incorporated into the main Gmail.