Gmail for iOS Gets Long-Awaited Update Among the updates are Undo Send for Gmail on iOS and better search and spelling suggestions.

Heads up, iOS users: The Gmail app is about to get a lot better.

Google just announced what it's touting as the biggest overhaul of the app in nearly four years. The update brings a "fresh new look, sleeker transitions and some highly requested features" such as the ability to "undo send" as well as swipe to archive and delete, according to a blog post from Product Manager Matthew Izatt. Plus, the whole app should be "a lot faster," he added.

With undo send on iOS, you'll be able to "prevent embarrassing mistakes," by quickly undoing a message before it's delivered to the other person, just like you can already do on the desktop.

Plus, now when you're searching for something you'll see instant results and spelling suggestions to help you locate what you're looking for even quicker. With swipe to archive or delete, you should be able to more quickly clear items out of your inbox if you're into that type of thing.

Meanwhile, Google also made some user-requested updates to Calendar on iOS. That includes the ability to check out month and week views in landscape mode and support for Apple's Spotlight search feature and alternate calendars. You can access Spotlight search on your iOS device by touching anywhere on the home screen and swiping your finger down. With Google's support, you can now use the feature to look for events, Reminders and goals in your calendar.

Finally, you can now add alternative calendars like Lunar, Islamic or Hindu and easily see those dates alongside your current calendar.