Google has pulled popular email client Sparrow from both the iOS and Mac App Stores. While both the iOS and Mac versions disappeared from the App Store, the Mac version is still available via the Sparrow website.
The last time the $2.99 email app appeared in the iOS App Store was February 12th, while the $9.99 Mac app was last available on February 13th. […] The last time the iOS app received an update was October 2013 to add iOS 7 compatibility. The Mac app never saw an update. At one point, Sparrow was the most popular app on the iOS App Store.
Google acquired Sparrow back in 2012, and announced that the entire Sparrow team would be joining Google to work on Gmail. The Sparrow apps have since received only a handful of updates, seemingly falling by the wayside in the face of Google’s new Inbox initiative.
Inbox, launched last October, is viewed as a cross between Gmail and Google Now, and is seen as Google’s focus for email management in the near future.