Mailbox's elegant approach, simple design, and system of swipes that handle email and task management make this app worth trying for everyone who uses Gmail on their iPhone. For someone who lives in their inbox, and uses email to manage tasks this may well be the best app to date. The UI is sophisticated and easy to use, as is email composition and reading. But, its long waiting list and exclusive Gmail-iPhone compatibility will exclude some iPhone users from trying the new app out.
Handling email was the most interesting and useful part of the application. For messages in my inbox the app gave me four choices about how to deal with them: delete, archive, schedule later and add to a list. While the first two are common, it's the last two that give Mailbox an edge over the competition. The schedule for later, a half swipe to the left, offered me eight options, including later today, this evening, next week, a specific day, or just "someday." Once deferred the app moves the message into the later folder accessible from the navigation bar and notified me a device alert when it was time to deal with an email. In the settings Mailbox allowed me to customize all of the "schedule later" snooze preferences– for example, allowing "later today" to be six hours from now, instead of the default three.