Google has updated its Gmail app for iOS today, which includes a handful of much-welcomed features and improvements. There is now an "Undo Send" button for mobile, a fresh new look, and faster search. Mashable reports: To unsend an email, just tap the "Undo" button in the lower right corner after you've hit the paper plane send icon. But you have to do it fast. You only get five seconds to hit undo before the email sends. And unlike the desktop version, you can't set it to longer intervals up to 30 seconds. You'll also notice Gmail app's got a fresh new look that resembles the Android version, which makes use of Google's Material Design language. Google's also made search faster with autocorrect suggestions and added in swipe gestures for archiving and deleting. In addition, Google has updated its Calendar application for iOS, bringing an overhauled UI and support for Spotlight search.