Latest beta version of iOS 8.3 allows users to download free apps without typing in their password
Under the heading of "Password Settings" in the iTunes and App Store, users can decide whether they need to enter their password immediately when purchasing a paid app, or after 15 minutes. Another new feature will allow iOS users to download a free app without having to type in their password. This option to streamline the downloading of free apps might not be found in all regions.
Currently, iOS 8.2 is in use and that build brought support for the Apple Watch, scheduled to launch on April 24th. Besides the speakerphone calls arranged by Siri, iOS 8.3 is expected to offer a new Emoji keyboard, support for CarPlay and more. Apple has started a public beta program that now allows non-developers to load beta versions of iOS on their device.
source: 9to5Mac via RedmondPie