Gmail's Inbox app packs a number of features aimed at helping you better tackle your email load. Starting this week, it's getting one more. The new tool is called Smart Reply and it automatically suggests short responses to messages where a lengthy discourse isn't needed. After using machine learning to analyze the emails you receive, Inbox comes up with some appropriate responses to save time by allowing you to respond with fewer taps. And just like it does to wrangle spam, the app learns how you reply over time so it can offer better suggestions the more you use it. Smart Reply will be hitting both the Android and iOS versions of Inbox this week, so keep your eye peeled for the update to arrive.