Waze is one of the most popular maps and traffic apps on iOS and Android. For good reason, too: It's fast, intuitive and, often times, more accurate than the highly rated Google Maps. Today, Waze's making its mobile application even better, thanks to an overhaul designed to offer a cleaner, prettier user interface and quicker access to useful actions. With a single tap, you can now send directions, location or estimated time of arrival to your contacts. You can also get traffic-based reminders, making it easier to get to any destination on time -- as long as your calendar is synced with Waze. Last but not least, this new version of the app "significantly" reduces battery consumption, according to the company; if true, that'll definitely be appreciated by users who rely on the app for their daily commutes or casual trips. The 4.0 update is already available for iOS, while Android's expected to get it "soon."