The new app is free and only works with Gmail accounts and it will always show you every single message sent your way. However, it scans each email and brings on top what it thinks is the most important information that you need to know. Google assures that Inbox isn’t meant to replace Gmail and we should view it as “an assistant putting your mail into piles to make it easier to deal with”. When you open the app, you won’t see how many unread messages you have but rather a feed of messages, letting you quickly preview photos, travel details, shipping notifications, attached documents and other items. Similar messages are grouped together in bundles and the “social” and “promotions” tabs found in Gmail are now default bundles in Inbox. The idea behind Inbox is to come up with a stream that you can quickly browse through, picking what you need and discarding the rest. It’s also possible to create new bundles based on different factors such as who messages are from or keywords found in messages. Inbox also highlights the key information from important messages and even displays useful information from the web that wasn’t in the original email, such as the real-time status of your flights and package deliveries. You can also add your own Reminders, which makes your email look and feel a little like Google Now. Assists is another coll features which works like this: Inbox also lets users Snooze away emails and Reminders, if you can’t have a look at them now or you’re busy with something. You can set them to come back at another time or when you get to a specific location, which is really neat. Google is already sending out the first round of invitations to give Inbox a try, and each new user will be able to invite their friends. You can also email Google at inbox@google.com if you want to get an invitation as quickly as possible.