Add Google Launcher and Search on Kitkat for Nexus 4/7
By default Google is not providing Google Launcher in which status bar and bottom bar is transparent is not installed in the Kitkat updates for older Nexus device which is available only for Nexus 5. Also “Ok Google” voice feature from home screen for Google Search bar is also not installed.
The Solution is quite simple just download this 2 apk on your device:
This will give your Nexus device same look and feel like Nexus 5.