If you've been confused by the fact that there are two Google-made launchers in the Play Store, namely the Google Now Launcher (GNL) and the Pixel Launcher, then prepare to become un-confused pretty soon. Sure, the Pixel Launcher is only installable on the Pixels, as its name implies, but the search giant is getting ready to stop supporting the Google Now Launcher. The upside is that there will be only one Google launcher in the Play Store by the end of the first quarter of this year (so on March 31 at the latest). The downside is that this probably means the end of the road for any big...
Source: http://www.gsmarena.com/google_now_launcher_will_die_by_the_end_of_march-news-23186.php