Zukitwo - Zukitwo is a Gnome Shell and GTK theme that currently works on Gnome Shell 3.14 and the latest version of GTK.
Lydia Watch - Pay for things with one tap on your Apple Watch
Dark Language - Holistic language, editor, and infra for building backends
Apple Pay - Apple's secure way to make purchases in stores, apps and on the web.
adapta-gtk-theme - An adaptive Gtk+ theme based on Material Design Guidelines - adapta-project/adapta-gtk-theme
sweetgreen for iOS - Order, pay, rewards. It's so clean, you can eat off it.